| Name | Author | Source | Citation | Year |
|---|
| ALLONITZSCHIA | A. Mann | image |
| Allonitzschia munifica | Mann | image |
| Amphiprora nitzschia | E. O'Meara | image |
| Ancyromonas nitzschiae | Skvortzov | image |
| CYMATONITZSCHIA | R. Simonsen | "Meteor" Forschungsergebn. Reihe D, | 19: 56 | 1974 |
| CYMATONITZSCHIA | Simonsen | image |
| Cymatonitzschia marina | (Lewis) Simonsen | image |
| Cymatonitzschia shulzei | (Boyer) Simonsen | image |
| CYMBELLONITZSCHIA | Hustedt | image |
| Cymbellonitzschia banzuensis | J.G. Stepanek, S.E. Hamsher, S. Mayama, D.H. Jewson, & J.P. Kociolek | Phycol. Research | 64: 28, figs. 1-22 | 2015 |
| Cymbellonitzschia cataractorum | Kufferath | image |
| Cymbellonitzschia cataractum | Kufferath | image |
| Cymbellonitzschia diluviana | Hustedt | image |
| Cymbellonitzschia hossamedinii | Salah | image |
| Cymbellonitzschia minima | Hustedt | image |
| Cymbellonitzschia szulczewskii | A. Witkowski, H. Lange-Bertalot & D. Metzeltin | Icon. Diatomol. | 7: 358, 425, pl. 213: figs. 1-7 | 2000 |
| FRAGILARIOPSIS | (Hustedt) Hasle (sect. of Nitzschia) | image |
| GOMPHONITZSCHIA | (Grunow) Schütt | image |
| GOMPHONITZSCHIA | Grunow | image |
| Gomphonitzschia agma | Hohn & Hellerman | image |
| Gomphonitzschia capensis | Giffen | Bacillaria | 7: 191, pl. 1: figs. 29-32 | 1984 |
| Gomphonitzschia clevei | Grunow | image |
| Gomphonitzschia exigua | H.E. Sovereign | Trans. Amer. Microscop. Soc. | 77: 131, pl. IV: figs. 41, 42 | 1958 |
| Gomphonitzschia exigua | Sovereign | image |
| Gomphonitzschia indica | Skvortzov | image |
| Gomphonitzschia saigoni | Meister | image |
| Gomphonitzschia taiaensis | Carter & Denny | image |
| Gomphonitzschia ungeri f. curta | Kufferath | Bulletin de l'Institut Royal des Sciences Naturelles de Belgique | 32{34}: 17, pl. 3: figs. 11, 12 | 1956 |
| Gomphonitzschia ungeri | Grunow | image |
| Gomphonitzschia ungeriana | Grunow | image |
| GRUNOWINITZSCHIA | U. Rumrich, H. Lange-Bertalot, & M. Rumrich | Iconogr. Diatomol. | 9: 191 | 2000 |
| HYALONITZSCHIA | J.C. Lewin & R.A. Lewin | image |
| NITZSCHIA | (Hassall) Schütt | image |
| NITZSCHIA [gruppe] | SCALARES Grunow | image |
| NITZSCHIA | Hassall | Brit. Freshw. Alg. | 1: 435 | 1845 |
| NITZSCHIA sect. | TRYBLIONELLA (W. Smith) Cleve-Euler | image |
| NITZSCHIA subg. GRUNOWINITZSCHIA | U. Rumrich, H. Lange-Bertalot, & M. Rumrich | Iconogr. Diatomol. | 9: 191 | 2000 |
| NITZSCHIA subg. | PANDURA Frenguelli | image |
| NITZSCHIA subg. | TRYBLIONELLA (W. Smith) Hustedt | image |
| NITZSCHIA subgenus DENTICULOIDEA | Lange-Bertalot | Biblioth. Diatomol. | 27: 153 | 1993 |
| NITZSCHIA subsection | NITZSCHIELLA Brun | image |
| NITZSCHIA | | image |
| NITZSCHIA | | image |
| NITZSCHIA | | image |
| NITZSCHIA | | image |
| NITZSCHIA | | image |
| Nitzschia abbreviata | Hustedt | image |
| Nitzschia abelmanniae | A. Witkowski & H. Lange-Bertalot in Witkowski et al. | Beih. Nova Hedwigia | 144: 216, figs. 17-37 | 2015 |
| Nitzschia abonuensis | Foged | image |
| Nitzschia abraensis | Foged | image |
| Nitzschia abridia | Camburn | image |
| Nitzschia accedens | Hustedt | image |
| Nitzschia accedens var. chilensis | Patrick | image |
| Nitzschia accommodata | Hustedt | image |
| Nitzschia aciculariformis | Manguin | image |
| Nitzschia acicularioides | Archibald | image |
| Nitzschia acicularioides | Hustedt | image |
| Nitzschia acicularis | (Kützing) W. Smith | image |
| Nitzschia acicularis f. angustior | Otto Müller | image |
| Nitzschia acicularis | Frenguelli | image |
| Nitzschia acicularis var. adelos | Hohn & Hellerman | image |
| Nitzschia acicularis var. africana | Cholnoky | image |
| Nitzschia acicularis var. closterioides | Grunow | image |
| Nitzschia acicularis var. interrupta | Heiden & Kolbe | image |
| Nitzschia acicularis var. major | Otto Müller | image |
| Nitzschia acicularis var. nipponica | Skvortzov | image |
| Nitzschia acidoclinata | Lange-Bertalot | image |
| Nitzschia actinastroides | (Lemmermann) Van Goor | image |
| Nitzschia actydrophila | Hasle | image |
| Nitzschia acula | (Kützing) Hantzsch | image |
| Nitzschia acuminata | (W. Smith) Grunow | image |
| Nitzschia acuminata f. maxima | Cleve-Euler | image |
| Nitzschia acuminata var. subconstricta | Grunow | image |
| Nitzschia acus | Cleve | image |
| Nitzschia acuta | Cleve | Bih. K. Svenska Vet. Akad. Handl. | 5{8}: 13, fig. 20 | 1878 |
| Nitzschia acuta var. agrunensis | Skvortzov | image |
| Nitzschia acuta var. agrunensis | Skvortzov mscr. | image |
| Nitzschia acuta var. hinganica | Skvortzov | image |
| Nitzschia acutiuscula | Grunow | image |
| Nitzschia adamata | Hustedt | image |
| Nitzschia adamatoides | K. Krammer & H. Lange-Bertalot in H. Ettl et al. (eds.) | Süsswasserfl. Mitteleuropa | 2{2}, ed. 2: 590 | 1997 |
| Nitzschia adapta | Hustedt | image |
| Nitzschia adducta | Hustedt | Duke Univ. Mar. Sta. Bull. | 6: 43, pl. 15: figs. 21, 22 | 1955 |
| Nitzschia adductoides | Archibald | image |
| Nitzschia adeliae | Frenguelli | image |
| Nitzschia adeliana | Manguin | image |
| Nitzschia adeliana var. major | Manguin | image |
| Nitzschia adhaerens | M. Mucko & S. Bosak in Mucko et al. | J. Phycol. | 57: 151, figs. 4, 5 | 2020 |
| Nitzschia adiembraensis | Foged | image |
| Nitzschia admissa | Hustedt | image |
| Nitzschia admissoides | Cholnoky | image |
| Nitzschia adriatica | Grunow | image |
| Nitzschia adriatica var. spathulifera | Grunow | image |
| Nitzschia aequalis | Hustedt | image |
| Nitzschia aequatorialis | Heiden | image |
| Nitzschia aequorea | Hustedt | image |
| Nitzschia aerophila | Hustedt | Ber. Deutsch. Bot. Ges. | 60: 70, fig. 46 | 1942 |
| Nitzschia aerophiloides | H.P. Gandhi ex Karthick in Guiry et al. | Notulae algarum | 133: 6, description and illustration in Gandhi (1998: 199, pl. VI: fig. 189; pl. VII: fig. 236) | 2020 |
| Nitzschia aerophiloides | H.P. Gandhi | Fresh-water Diatoms Central Gujarat: | 199, pl. VI: fig. 189; pl. VII: fig. 236 (misprinted 239) | 1998 |
| Nitzschia aestatis | Giffen | image |
| Nitzschia aestuarii | Hustedt | image |
| Nitzschia affinis f. major | Grunow | image |
| Nitzschia affinis | Grunow | image |
| Nitzschia affinis | Manguin | image |
| Nitzschia affinis var. upolensis | Grunow | image |
| Nitzschia africana | Grunow | image |
| Nitzschia africana | Leuduger-Fortmorel | image |
| Nitzschia agnewii | Cholnoky | image |
| Nitzschia agnita | Hustedt | image |
| Nitzschia aketechiensis | Foged | image |
| Nitzschia alaskana | Patrick & Freese | image |
| Nitzschia alata | Leuduger-Fortmorel | image |
| Nitzschia alba | Lewin & Lewin | image |
| Nitzschia albicostalis | B.E. Volcani & C.-W. Li in Li & Volcani, | Brit. Phycol. J. | 22: 377, figs. 12-16 | 1988 |
| Nitzschia alcyoneae | C.S. Lobban, M. Ashworth, J.J.M. Calaor, & E.C. Theriot | Phytotaxa | 401: 218, figs. 75-82 | 2019 |
| Nitzschia alexandrina | (Cholnoky) Lange-Bertalot & Simonsen | image |
| Nitzschia alicae | D. Hlúbiková & L. Ector in D. Hlúbiková et al. | J. Phycol. | 45: 747, figs. 4a-y; 6a-q,;7e,f; 8g,h; 9e,f; 10e,f | 2009 |
| Nitzschia allansonii | Cholnoky | image |
| Nitzschia alpha | Heinzerling | image |
| Nitzschia alpina | Hustedt | image |
| Nitzschia alpinobacillum | Lange-Bertalot | Biblioth. Diatomol. | 27: 143, pl. 114: figs. 2-6; pl. 115: fig. 5 | 1993 |
| Nitzschia amabilis | H. Suzuki in H. Suzuki, T. Nagumo & J. Tanaka | Diatom Research | 25: 223 | 2010 |
| Nitzschia ambigua | Manguin | image |
| Nitzschia americana | D. Bennett & J.P. Kociolek in Kociolek et al. | Biblioth. Diatomol. | 61: 51, pl. 73: figs. 1-7; pl. 74 | 2014 |
| Nitzschia americana | G.R. Hasle | Taxon | 23: 427 | 1974 |
| Nitzschia americana | Hasle | image |
| Nitzschia amisaensis | Foged | image |
| Nitzschia amoena | Hustedt | image |
| Nitzschia amoyensis | Skvortzov | The China Journal | 11: 43, fig. 10 | 1929 |
| Nitzschia amphibia f. abbreviata | Manguin | image |
| Nitzschia amphibia f. frauenfeldii | (Grunow) Cleve-Euler | image |
| Nitzschia amphibia f. rostrata | Hustedt | image |
| Nitzschia amphibia | Grunow | image |
| Nitzschia amphibia var. acuta | Frenguelli | image |
| Nitzschia amphibia var. acutiuscula | Grunow | image |
| Nitzschia amphibia var. australis | Grunow | image |
| Nitzschia amphibia var. curta | Skvortzov | image |
| Nitzschia amphibia var. elongata | Grunow | image |
| Nitzschia amphibia var. fossilis | Grunow | image |
| Nitzschia amphibia var. genuina | Mayer | image |
| Nitzschia amphibia var. intermedia | Mayer | image |
| Nitzschia amphibia var. major | Manguin | image |
| Nitzschia amphibia var. pelagica | Hustedt | image |
| Nitzschia amphibia var. pelagica | Hustedt ex R. Simonsen | Atlas & Cat. Diatom Types Hustedt: | 78, pl. 101: figs. 8-13 | 1987 |
| Nitzschia amphibia var. pelagica | Hustedt | A. Schmidt's Atlas Diatomaceenkunde: | pl. 348: figs. 48-51 | 1922 |
| Nitzschia amphibia var. thermalis | Grunow | image |
| Nitzschia amphibia var. thermalis | Petersen | image |
| Nitzschia amphibioides | Hustedt | image |
| Nitzschia amphicephala | Grunow | image |
| Nitzschia amphilepta | (Ehrenberg) Ralfs in Pritchard | Hist. Inf. ed. 4: | 780 | 1861 |
| Nitzschia amphioxoides | Hustedt | image |
| Nitzschia amphioxoides | Hustedt | image |
| Nitzschia amphioxys | (Ehrenberg) W. Smith | image |
| Nitzschia amphioxys f. elongata | Rabenhorst | Fl. Eur. Alg. | I: 151 | 1864 |
| Nitzschia amphioxys f. longissima | Rabenhorst | image |
| Nitzschia amphioxys f. major | (Grunow) Mayer | image |
| Nitzschia amphioxys var. arverna | (M. Peragallo) Frenguelli | image |
| Nitzschia amphioxys var. capitellata | (Grunow) Frenguelli | image |
| Nitzschia amphioxys var. compacta | (Hustedt) Frenguelli | image |
| Nitzschia amphioxys var. elongata | (Hantzsch) Mayer | Ber. Naturw. Ver. Regensburg | 14: 292 | 1913 |
| Nitzschia amphioxys var. elongata | (Hantzsch) Schumann | image |
| Nitzschia amphioxys var. elongata | Schumann | Schr. K. Phys.-Ökon. Ges. Königsberg | 10{Abh.}: 86 | 1869 |
| Nitzschia amphioxys var. exilis | Frenguelli | image |
| Nitzschia amphioxys var. genuina | Grunow | image |
| Nitzschia amphioxys var. hyperborea | (Grunow) Frenguelli | image |
| Nitzschia amphioxys var. intermedia | (Grunow) Mayer | image |
| Nitzschia amphioxys var. pusilla | (Grunow) Mayer | image |
| Nitzschia amphioxys var. vivax | (W. Smith) Grunow | image |
| Nitzschia amphioxys var. vivax | Mayer | image |
| Nitzschia amphioxys var. xerophila | (Grunow) Frenguelli | image |
| Nitzschia amphiprora | Grunow | image |
| Nitzschia amphoroides | (Grunow) Grunow | image |
| Nitzschia amplectens | Hustedt | image |
| Nitzschia amundoni | Aleem, inval. | image |
| Nitzschia anassae | Cholnoky | image |
| Nitzschia anatoliensis | E. Górecka, R. Gastineau & C. Solak in Solak et al. | PeerJ | 9:e12220, 4, figs. 1, 2 | 2021 |
| Nitzschia anderabensis | Foged | image |
| Nitzschia andesitica | Pantocsek | image |
| Nitzschia andicola | H. Lange-Bertalot & U. Rumrich in U. Rumrich, H. Lange-Bertalot, & M. Rumrich | Iconogr. Diatomol. | 9: 193, pl. 158: figs. 3-9; pl. 159: figs. 1-6 | 2000 |
| Nitzschia anguillula | Schumann | image |
| Nitzschia angularis var. australis | Cleve-Euler | image |
| Nitzschia angularis var. borealis | Grunow | image |
| Nitzschia angularis var. kariana | Grunow | image |
| Nitzschia angularis var. occidentalis | Grunow | image |
| Nitzschia angularis var. tenuistriata | Van Heurck | image |
| Nitzschia angularis | W. Smith | image |
| Nitzschia angularis-vera_('angularis vera') | Mereschkowsky | image |
| Nitzschia angulata | Hasle | image |
| Nitzschia angusta var. marina | Grunow | image |
| Nitzschia angustata | (W. Smith) Grunow | image |
| Nitzschia angustata f. acuminata | (Mayer) Kurz | image |
| Nitzschia angustata f. acuminata | Mayer | image |
| Nitzschia angustata f. acuta | Mayer | image |
| Nitzschia angustata f. amphioxyoides | Mayer | image |
| Nitzschia angustata f. curta | Dippel | image |
| Nitzschia angustata f. longissima | Mayer | image |
| Nitzschia angustata f. subconstricta | Mayer | image |
| Nitzschia angustata f. typica | Mayer | image |
| Nitzschia angustata var. acuminata | Mayer | image |
| Nitzschia angustata var. acuta | Grunow | K. Svenska Vet.-Akad. Handl., ser. 4, | 17{2}: 70, no fig. | 1880 |
| Nitzschia angustata var. antiqua | (Schumann) Cleve-Euler | image |
| Nitzschia angustata var. capitata | Skvortzov | image |
| Nitzschia angustata var. constricta | Meister | image |
| Nitzschia angustata var. constricta | Meister | image |
| Nitzschia angustata var. constricta | Skvortzov | image |
| Nitzschia angustata var. curta | Grunow | image |
| Nitzschia angustata var. curta | Skvortzov | image |
| Nitzschia angustata var. genuina | Meister | image |
| Nitzschia angustata var. hantzschioides Østrup | | image |
| Nitzschia angustata var. himayatii | Anjum & Hussain | image |
| Nitzschia angustata var. jeniseyensis | Skvortzov | image |
| Nitzschia angustata var. lanceolata | Hustedt | image |
| Nitzschia angustata var. longirostris | Cleve-Euler | image |
| Nitzschia angustata var. marina | Cleve & Möller | image |
| Nitzschia angustata var. minuta | Krasske | Arch. Hydrobiol. | 24: 445, pl. XVI: fig. 20 | 1932 |
| Nitzschia angustata var. producta | Pantocsek | image |
| Nitzschia angustata var. protracta | Pantocsek | image |
| Nitzschia angustatula | H. Lange-Bertalot in Lange-Bertalot & Kramer | Biblioth. Diat. | 15: 6, pl. 18: figs. 1-4, ?5 | 1987 |
| Nitzschia angustatula | Lange-Bertalot | image |
| Nitzschia angustecarinata | Hustedt | image |
| Nitzschia angusteforaminata | Lange-Bertalot | image |
| Nitzschia angustiprotracta | Michailov | image |
| Nitzschia angustissima | Hustedt | image |
| Nitzschia angustissima | Van Heurck | image |
| Nitzschia angustissima var. delicatula | M. Peragallo | image |
| Nitzschia aniae | Lange-Bertalot | Biblioth. Diatomol. | 27: 144, pl. 116: figs. 1-10 | 1993 |
| Nitzschia ankobraensis | Foged | image |
| Nitzschia annewillemsiana | S. Hamsher, K. Kopalová, J.P. Kociolek, R. Zidarova, & B. Van de Vijver | Fottea, Olomouc | 16: 81, figs. 2-22 | 2016 |
| Nitzschia anomala | Proschkina-Lavrenko | image |
| Nitzschia antarctica | Okuno | image |
| Nitzschia antediluviana f. interrupta | Pantocsek | image |
| Nitzschia antediluviana | Pantocsek | image |
| Nitzschia antillarum | (Cleve & Grunow) Meister | image |
| Nitzschia antiqua | Grove & Sturt | image |
| Nitzschia antiqua | Pantocsek | image |
| Nitzschia antiqua var. cavernosa | Brun | image |
| Nitzschia apiceconica | Kufferath | Expl. Hydrobiol. Lac Tanganika (1946-1947), Rés. Sci. | 4{3}: 41, pl. V: figs. 1-5 | 1956 |
| Nitzschia apiculata | (Gregory) Grunow | image |
| Nitzschia apiculata var. liaotungiensis | Skvortzov | image |
| Nitzschia apowaensis | Foged | image |
| Nitzschia apropongensis | Foged | image |
| Nitzschia aquaea | Wislouch & Poretzky in Poretzky | Trudy Leningradskago Obschchestva Estestvoispytatelei | 53(3): 147, fig. 7 | 1924 |
| Nitzschia araucana | J.P. Kociolek & A.A. Vouilloud in Kociolek & Vouilloud | Bol. Soc. Argent. Bot. | 55: 526, figs. 4-7 | 2020 |
| Nitzschia archibaldii | Lange-Bertalot | image |
| Nitzschia arctica | Cleve | image |
| Nitzschia arctica var. paucipunctata | Van Heurck | image |
| Nitzschia arcuata | Gregory | image |
| Nitzschia arcuata var. subarcuata | Grunow | image |
| Nitzschia arcuato-sigmoidea | Kozlowsky | image |
| Nitzschia arcuatosigmoidea_('arcuato-sigmoidea') | W.M. Kozłowski | Zap. Kievsk. Obshch. Estestvoisp. | 11: 27, fig. 2 | 1890 |
| Nitzschia arcula | Gersonde | image |
| Nitzschia arcula | R. Gersonde | Polarforschung | 59: 143, figs. 2, 3; pl. 2: fig. 4; pl. 4: fig. 4; pl. 5: figs. 1-6 | 1991 |
| Nitzschia arculus | Suringar | image |
| Nitzschia arcus | Bulnheim | image |
| Nitzschia ardua | Cholnoky | Hydrobiologia | 17: 314, fig. 65 | 1961 |
| Nitzschia aremonica | Archibald | image |
| Nitzschia areolata | Hustedt | Ber. Deutsch. Bot. Ges. | 64: 311, fig. 15 | 1952 |
| Nitzschia arierae | Bing Liu, S. Blanco & B.Q. Huang | Phytotaxa | 231: 261, figs. 1-22 | 2015 |
| Nitzschia armoricana | (Kützing) Grunow | image |
| Nitzschia armoricana | Peragallo & Peragallo | image |
| Nitzschia asiatica | Tempère & Brun | image |
| Nitzschia asperula | T. Marsson | Zeitschrift für angewandte Mikroskopie und klinische Chemie | 6: 207 | 1900 |
| Nitzschia asterionelloides | Otto Müller | image |
| Nitzschia asteropeae | C.S. Lobban, M.P. Ashworth, J.J.M. Calaor, & E.C. Theriot | Phytotaxa | 401: 219, figs. 17, 89-94 | 2019 |
| Nitzschia astridiae_('astridi') | Aleem, inval. | image |
| Nitzschia asymbasia | Hohn | image |
| Nitzschia atlantica | (Cleve) Cleve | image |
| Nitzschia atlantica | (Paasche) Hasle | image |
| Nitzschia atomus | Hustedt ex Brendemuhl | image |
| Nitzschia attenuata | Michailov | image |
| Nitzschia attenuata Østrup | | image |
| Nitzschia aurantiaca | Schoeman | image |
| Nitzschia aurariae | Cholnoky | Rev. Alg. n.s. | 8: 165, text-figs. 9-11, pl. 9: figs. 15-18 | 1966 |
| Nitzschia aurica | Gersonde | image |
| Nitzschia aurica | R. Gersonde | Polarforschung | 59: 144, figs. 4, 5; pl. 1: figs. 18-25; pl. 3: fig. 5; pl. 4: figs. 5, 6; pl. 7: fig. 6 | 1991 |
| Nitzschia auricula | R. Gersonde in Harwood & Maruyama | Proc. Ocean Drilling Program, Sci. Results | 120: 704 | 1992 (April) |
| Nitzschia australis | (M. Peragallo) Mann | image |
| Nitzschia australocommutata | S. Hamsher, K. Kopalová, J.P. Kociolek, R. Zidarova, & B. Van de Vijver | Fottea, Olomouc | 16: 83, figs. 23-30, 33-36 | 2016 |
| Nitzschia australodesertorum | E.A. Lehmkuhl, T. Ludwig & C. Bicudo in Lehmkuhl et al. | Phytotaxa | 399: 89, figs. 32-52, 59-68 | 2019 |
| Nitzschia austriaca | Hustedt | image |
| Nitzschia bacata f. linearis | Hustedt | image |
| Nitzschia bacata | Hustedt | image |
| Nitzschia bacillariaeformis | Hustedt | image |
| Nitzschia bacillariaeformis var. producta | Cholnoky | image |
| Nitzschia bacilliformis | Hustedt | image |
| Nitzschia bacilliformis var. elongata | Skvortzov | Publ. Mus. Hoangho Paiho Tien Tsin | 36: 28, pl. 6: fig. 26 | 1935 |
| Nitzschia bacillum | Hustedt | image |
| Nitzschia baculum | Frenguelli | image |
| Nitzschia baikalensis | Skvortzov | image |
| Nitzschia balatonis | Grunow | K. Svenska Vet. Akad. Handl. | [ser. 4], 17{2}: 70 | 1880 |
| Nitzschia balcanica | Hustedt | image |
| Nitzschia baltica | (Juhlin-Dannfelt) Migula | Krypt.-Fl. Deutschl., Alg. | 1: 338 | 1906 |
| Nitzschia bansoensis | Foged | image |
| Nitzschia barbieri | M. Peragallo | Deux. Expéd. Antarct. Franc\*,. (1908-1910) ... Charcot. Diatomées: | 66, no fig. | 1921 |
| Nitzschia barbieri var. latestriata | M. Peragallo | Deux. Expéd. Antarct. Franc\*,. (1908-1910), Charcot. Diatomées: | 66, pl. III: fig. 21 | 1921 |
| Nitzschia barbieri var. minor | M. Peragallo | image |
| Nitzschia barca | Hohn & Hellerman | image |
| Nitzschia barkleyi | Hustedt | image |
| Nitzschia barronii | Gersonde | image |
| Nitzschia barronii | R. Gersonde | Polarforschung | 59: 146, figs. 6, 7; pl. 3: fig. 6; pl. 4: figs. 1-3; pl. 5: figs. 7-17 | 1991 |
| Nitzschia barrowiana | Patrick & Freese | image |
| Nitzschia bartholomei | (Grunow) Lange-Bertalot & Krammer | image |
| Nitzschia bathurstensis | Giffen | image |
| Nitzschia bathurstensis | M.H. Giffen | Beih. Nova Hedwigia | 31: 287, pl. 4: figs. 67-69 | 1970 |
| Nitzschia bavarica | Hustedt | image |
| Nitzschia beagleana | Patrick | image |
| Nitzschia behrei | Hustedt | image |
| Nitzschia bella | Sovereign | image |
| Nitzschia beyeri | H. Lange-Bertalot in A. Witkowski et al. | Phycologia | 43: 580, figs. 1-6 | 2004 |
| Nitzschia biacrula | Hohn & Hellerman | image |
| Nitzschia biakensis | Cholnoky | image |
| Nitzschia bicapitata | Cleve | image |
| Nitzschia bicapitata var. faeroensis | G. Fryxell | Diatom Research | 15: 52, figs. 12-24 | 2000 |
| Nitzschia biceps | (Schumann) Migula | Krypt.-Fl. Deutschl., Alg. | 1: 338 | 1906 |
| Nitzschia biconicacuta | Kufferath | image |
| Nitzschia bicrena | Hohn & Hellerman | image |
| Nitzschia bicuneata | Grunow | K. Svenska Vet. Akad. Handl. | [ser. 4], 17{2}: 75 | 1880 |
| Nitzschia bicuspidata | Pantocsek | image |
| Nitzschia bifurcata | Kaczmarska & Licea in Kaczmarska & Fryxell, | Proc. Eighth Int. Diat. Symp. [Paris, 1984]: | 241, figs. 1-3, 8 | 1986 |
| Nitzschia bilineata | Grunow | image |
| Nitzschia bilobata f. minima Østrup | | image |
| Nitzschia bilobata var. adriatica | H. Peragallo & M. Peragallo | Diatomées Marines de France: | pl. LXX: fig. 28 (desc. on p. 273, 1901) | 1899 |
| Nitzschia bilobata var. ambigua | Manguin | image |
| Nitzschia bilobata var. antarctica | J. Frenguelli & H.A. Orlando | Publ. Inst. Antárt. Argent. | 5: 103, pl. III: fig. 20 | 1958 |
| Nitzschia bilobata var. diminuta | Grunow | image |
| Nitzschia bilobata var. fossilis | M. Peragallo | image |
| Nitzschia bilobata var. hybrida | Grunow | image |
| Nitzschia bilobata var. lesinensis | Grunow | image |
| Nitzschia bilobata var. minor | Grunow | image |
| Nitzschia bilobata var. verrucosa | O’Meara | image |
| Nitzschia bilobata | W. Smith | image |
| Nitzschia birostrata | W. Smith | image |
| Nitzschia bisculpta | A. Mann | Bull. U.S. Natl. Mus. | 100{6}: 125, pl. 28: figs. 1, 2 | 1925 |
| Nitzschia bisculpta | Mann | image |
| Nitzschia bita | Hohn & Hellerman | image |
| Nitzschia bituminosa | Pantocsek | image |
| Nitzschia bituminosa var. tenuior | Pantocsek | image |
| Nitzschia biundulata | A.Y. Al-Handal, J. Zimmerman, R. Jahn, A. Torstensson, & A. Wulff | Nova Hedwigia | 108: 285, figs. 2-17 | 2019 |
| Nitzschia bizertensis | D.B. Smida, N. Lundholm, A. Sakka, Hadj Mabrouk in Smida et al. | Harmful algae | 32: 60, figs. 2-5 | 2014 |
| Nitzschia blankaartensis | L. Denys & H. Lange-Bertalot | Nova Hedwigia | 67: 248, figs. 1-19 | 1998 |
| Nitzschia bleischii | Janisch | image |
| Nitzschia boettcheriana | Rabenhorst | image |
| Nitzschia boettcheriana var. gigantea | (Grunow) Rabenhorst | image |
| Nitzschia boliviana | E.A. Morales & M.L. Vis | Proc. Acad. Nat. Sci. Philadelphia | 156: 127, figs. 260-264, 271-276 | 2007 |
| Nitzschia bombiformis | Grunow in Van Heurck | Syn. Diat. Belg.: | pl. LVIII: fig. 9 | 1881 |
| Nitzschia borgei | Skvortzov | image |
| Nitzschia bosumtwiensis | Foged | image |
| Nitzschia braarudii | G.R. Hasle in C.R. Tomas (ed.) | Identifying marine diatoms and dinoflagellates: | 330, 339, pl. 74 (pro parte) | 1996 |
| Nitzschia braarudii | Hasle | image |
| Nitzschia brachygramma | D.G. Mann & R. Trobajo | Eur. J. Phycol. | 49: 293, figs. 8, 12-14, 22, 24, 29, 35-39 | 2014 |
| Nitzschia brebissonii var. borealis | Grunow | image |
| Nitzschia brebissonii var. borealis | Grunow | image |
| Nitzschia brebissonii var. brebissonii | W. Smith | image |
| Nitzschia bremensis | Hustedt | image |
| Nitzschia bremensis var. brunsvigensis | Hustedt | image |
| Nitzschia bremensis var. jeniseyensis | Skvortzov | image |
| Nitzschia bremensis var. sinica | Skvortzov | image |
| Nitzschia brevior | (E. Manguin ex Kociolek & Reviers) G. Moser, H. Lange-Bertalot & D. Metzeltin | Insel der Endemiten: Geobotanisches Phänomen Neukaledonien (Bibliotheca Diatomologica 38): | 53 | 1998 |
| Nitzschia brevirostris | Hustedt | image |
| Nitzschia brevissima | Grunow | image |
| Nitzschia brevistriata | Grunow | image |
| Nitzschia brightwellii | Kitton | image |
| Nitzschia brightwellii | Kitton ex Ralfs in Pritchard | Hist. Inf. ed. 4: | 780, pl. VIII: fig. 7 | 1861 |
| Nitzschia brittonii | Hagelstein | N.Y. Acad. Sci., Sci. Surv. Porto Rico & Virgin Is. | 8: 393, pl. 7: fig. 14 | 1939 |
| Nitzschia brunoi | H. Lange-Bertalot in H. Lange-Bertalot & D. Metzeltin | Iconogr. Diatomol. | 2: 92, pl. 101: 11-15; pl. 102: fig. 1 | 1996 |
| Nitzschia bryophila | (Hustedt) Hustedt | image |
| Nitzschia buceros | Cholnoky | image |
| Nitzschia bukensis | H. Peragallo in Peragallo & Peragallo | Denkschr. K. Akad. Wiss. [Wien], Math.-Nat. Kl. | 88: 5, pl. II: fig. 6 | 1911 |
| Nitzschia bulnheimiana var. capitata | Reimer | image |
| Nitzschia burcklia | Schrader | image |
| Nitzschia buschbeckii | A. Witkowski, H. Lange-Bertalot, & M. Ruppel in A. Witkowski et al. | Phycologia | 43: 583, figs. 10-25 | 2004 |
| Nitzschia cacumina | Giffen | image |
| Nitzschia calamae | Frenguelli | Rev. Mus. La Plata, n.s. 1. Secc. Paleontología | 1: 25, 33, pl. II: figs. 22-24 | 1936 |
| Nitzschia calcicola | Aleem & Hustedt | image |
| Nitzschia caledonensis | Schoeman | image |
| Nitzschia calida | Grunow | K. Svenska Vet. Akad. Handl. | [ser. 4], 17{2}: 75 | 1880 |
| Nitzschia calida var. salinarum | (Grunow) Frenguelli | image |
| Nitzschia californica | H.J. Schrader | Initial Rep. Deep Sea Drilling Project | 18: 707, pl. 5: fig. 15; pl. 26: fig. 6 | 1973 |
| Nitzschia californica | Schrader | image |
| Nitzschia campechiana | Grunow | K. Svenska Vet. Akad. Handl. | [ser. 4], 17{2}: 74 | 1880 |
| Nitzschia capartii_('caparti') | Kufferath | image |
| Nitzschia capensis | Cholnoky | image |
| Nitzschia capitata | Østrup | Dansk Bot. Ark. | 1{1}: 35, pl. 1: fig. 27 | 1913 |
| Nitzschia capitata | (W. Smith) M. Peragallo | image |
| Nitzschia capitata | Fritsch & Rich | image |
| Nitzschia capitata | Heiden & Kolbe | image |
| Nitzschia capitata Østrup | | image |
| Nitzschia capitellata | Hustedt | image |
| Nitzschia capitellata var. maxima | Gandhi | image |
| Nitzschia capitellata var. mongolica | Skvortzov | Publ. Mus. Hoangho Paiho Tien Tsin | 36: 35, pl. 8: fig. 32 | 1935 |
| Nitzschia capitellata var. montana | Skvortzov | image |
| Nitzschia capitellata var. nipponica | Skvortzov | image |
| Nitzschia capitellata var. sibirica | Skvortzov | image |
| Nitzschia capitellata var. sinica | Skvortzov | image |
| Nitzschia capitellata var. tenuirostris | (Grunow) L.N. Bukhtiyarova | Algologia | 5: 422 | 1995 |
| Nitzschia capitularis | Cholnoky | image |
| Nitzschia captiva | D.G. Mann, R. Trobajo, A. Witkowski, Nor. Yamada & J.J. Bolton in Mann et al. | Phycologia | 62: 147, figs. 2-25, 30, 32, 35, 37, 38, 40-49, 50-51 | 2023 |
| Nitzschia capuluspalae | Simonsen | image |
| Nitzschia carahii | C.S. Lobban, M.P. Ashworth, J.J.M. Calaor, & E.C. Theriot | Phytotaxa | 401: 221, figs. 12, 95-99 | 2019 |
| Nitzschia carinaacuta | V.I. Mikhailov | Bot. Zhurn. | 70: 1403, figs. 6-8 | 1985 |
| Nitzschia carnicobarica | Desikachary & Prema | image |
| Nitzschia castracanei | Hasle | image |
| Nitzschia celaenoae | C.S. Lobban, M.P. Ashworth, J.J.M. Calaor, & E.C. Theriot | Phytotaxa | 401: 231, figs. 11, 145-148 | 2019 |
| Nitzschia challengeri | H.J. Schrader | Initial Rep. Deep Sea Drilling Project | 18: 707, pl. 5: figs. 10-14, 34 | 1973 |
| Nitzschia challengeri | Schrader | image |
| Nitzschia chalonii | Van Heurck | image |
| Nitzschia chalonii var. delicatissima | Van Heurck | image |
| Nitzschia chalonii var. tenuistriata | Van Heurck | image |
| Nitzschia chandolensis | H.P. Gandhi ex Karthick in Guiry et al. | Notulae algarum | 133: 6, description and illustration in Gandhi (1998: 60, pl. III: figs. 131, 132) | 2020 |
| Nitzschia chandolensis | H.P. Gandhi | Fresh-water Diatoms Central Gujarat: | 60, pl. III: figs. 131, 132 | 1998 |
| Nitzschia chardezii | B. Van de Vijver & L. Beyens in B. Van de Vijver, Y. Frenot, & L. Beyens | Biblioth. Diatomol. | 46: 69, pl. 126 | 2002 |
| Nitzschia chasei | Cholnoky | image |
| Nitzschia chasmaensis | Foged | image |
| Nitzschia chauhanii | H.P. Gandhi ex Karthick in Guiry et al. | Notulae algarum | 133: 6, description and illustration in Gandhi (1998: 204, pl. VI: figs. 192, 193) | 2020 |
| Nitzschia chauhanii | H.P. Gandhi | Fresh-water Diatoms Central Gujarat: | 204, pl. VI: figs. 192, 193 | 1998 |
| Nitzschia chilensis | Hustedt | image |
| Nitzschia chinensis | Skvortzov | image |
| Nitzschia chuchiligaensis | Foged | image |
| Nitzschia chungara | U. Rumrich & H. Lange-Bertalot in U. Rumrich, H. Lange-Bertalot, & M. Rumrich | Iconogr. Diatomol. | 9: 182, pl. 166: figs. 1-10 | 2000 |
| Nitzschia chuniana | Manguin | image |
| Nitzschia chutteri | Archibald | image |
| Nitzschia chutteri | R.E.M. Archibald | Beih. Nova Hedwigia | 21: 265, pl. 1: figs. 47, 48 | 1966 |
| Nitzschia circumsuta | (Bailey) Grunow | image |
| Nitzschia circumsuta f. lanceolata | Schulz | image |
| Nitzschia circumsuta f. linearis | Schulz | image |
| Nitzschia circumsuta f. minor | Foged | image |
| Nitzschia claasseniae | Cholnoky | image |
| Nitzschia clandestina | Manguin | image |
| Nitzschia clarissima | H. Peragallo & M. Peragallo | Diatomées Marines de France: | pl. LXXII: fig. 4 (desc. on p. 279, 1901) | 1899 |
| Nitzschia clarissima var. obtusa | H. Peragallo & M. Peragallo | Diatomées Marines de France: | pl. LXXII: fig. 3 (desc. on p. 279, 1901) | 1899 |
| Nitzschia clausii f. curvirostrata | Manguin | image |
| Nitzschia clausii f. major | Hustedt | image |
| Nitzschia clausii | Hantzsch in Rabenhorst | Alg. Sachs. Dec. | 95/96: no. 944 | 1860 |
| Nitzschia clausiiformis | Gandhi | image |
| Nitzschia claviceps | Schrader | image |
| Nitzschia clavofixa | König | image |
| Nitzschia clementei | A.M. Gombos, Jr. | Initial Rep. Deep Sea Drilling Project | 36: 618, expl. pl. 8: figs. 18-20 | 1977 |
| Nitzschia clementia | A.M. Gombos, Jr. | Initial Rep. Deep Sea Drilling Project | 36: 595, pl. 8: figs. 18, 19 | 1977 |
| Nitzschia closterium | (Kützing) W. Smith | image |
| Nitzschia closterium f. curvata | Lohmann | image |
| Nitzschia closterium f. minutissima | E.J. Allen & E.W. Nelson | J. Mar. Biol. Assoc. U.K. | 8: 426, 462 | 1910 |
| Nitzschia closterium f. minutissima | Starr | image |
| Nitzschia closterium f. tenuissima | Manguin | image |
| Nitzschia closterium var. recta | Gran & Angst | image |
| Nitzschia closterium var. reversa | (W. Smith) Hauck | Österr. Bot. Z. | 22: 332 | 1872 |
| Nitzschia closterium var. striatula | Hasle | image |
| Nitzschia coarctata | Grunow | K. Svenska Vet. Akad. Handl. | [ser. 4], 17{2}: 68 | 1880 |
| Nitzschia coarctata var. oceanica | Frenguelli | image |
| Nitzschia cocconeiformis | Grunow | K. Svenska Vet. Akad. Handl. ser. 4, | 17{2}: 68 | 1880 |
| Nitzschia columbiana | H.E. Sovereign | Trans. Amer. Microscop. Soc. | 79: 345 | 1960 |
| Nitzschia columbiana | H.E. Sovereign | Trans. Amer. Microscop. Soc. | 77: 131, pl. IV: figs. 79-81 | 1958 |
| Nitzschia columbiana | Sovereign | image |
| Nitzschia communata | Grunow | image |
| Nitzschia communis f. acuta | Manguin | image |
| Nitzschia communis f. lata | Manguin | image |
| Nitzschia communis | Rabenhorst | Alg. Sachs. Dec. | 95/96: no. 949 | 1860 |
| Nitzschia communis var. abbreviata | Grunow | image |
| Nitzschia communis var. genuina | Kirchner | image |
| Nitzschia communis var. hyalina | Lund | image |
| Nitzschia communis var. minuta | (Bleisch) Kirchner | image |
| Nitzschia communis var. minuta | (Bleisch) Mayer | image |
| Nitzschia communis var. obtusa | Grunow | image |
| Nitzschia communis var. perpusilla | (Rabenhorst) Kirchner | image |
| Nitzschia commutata f. angustior | A. Cleve | image |
| Nitzschia commutata | Grunow | image |
| Nitzschia commutata var. curta | Skvortzov | image |
| Nitzschia commutata var. pamirensis | (Hustedt) Cleve-Euler | image |
| Nitzschia commutatoides | Lange-Bertalot | image |
| Nitzschia composita | Giffen | image |
| Nitzschia compressa | (Bailey) Boyer | Diat. Philadelphia: | 116 | 1916 |
| Nitzschia compressa var. balatonis | (Grunow) Lange-Bertalot | image |
| Nitzschia compressa var. pararostrata | H. Lange-Bertalot in H. Lange-Bertalot et al. | Iconographia Diatomologica | 3: 164, pl. 48: figs. 6, 6' | 1996 |
| Nitzschia compressa var. vexans | (Grunow) Lange-Bertalot | image |
| Nitzschia concinna | Grunow | image |
| Nitzschia concordia | Fryxell & Kaczmarska | image |
| Nitzschia concordia | G.A. Fryxell & I. Kaczmarska in I. Kaczmarska & G.A. Fryxell | Diatom Res. | 9: 90, figs. 8-14 | 1994 |
| Nitzschia condemnata | Cholnoky | image |
| Nitzschia conferta | (P. Richter) Migula | Krypt.-Fl. Deutschl., Alg. | 1: 338 | 1906 |
| Nitzschia confinis | Hustedt | image |
| Nitzschia confinis var. maxima | Patrick | image |
| Nitzschia conformata | Hustedt | Ber. Deutsch. Bot. Ges. | 64: 312, figs. 18, 19 | 1952 |
| Nitzschia congolensis | Hustedt | image |
| Nitzschia congolensis var. mooreae | Reimer | image |
| Nitzschia constricta | (Gregory) Grunow | image |
| Nitzschia constricta | (Gregory) Grunow | K. Svenska Vetensk.-Akad. Handl., ser. 4, | 17{2}: 71 | 1880 |
| Nitzschia constricta | (Kützing) Ralfs in Pritchard | Hist. Inf., ed. 4: | 780 | 1861 |
| Nitzschia constricta | (Kützing) Ralfs | image |
| Nitzschia constricta f. minor | Rabenhorst | image |
| Nitzschia constricta f. parva | Grunow in Van Heurck | Syn. Diat. Belg.: | pl. LVIII: fig. 8 | 1881 |
| Nitzschia constricta var. bombiformis | Grunow | K. Svenska Vetensk.-Akad. Handl., ser. 4, | 17{2}: 71 | 1880 |
| Nitzschia constricta var. major | Grunow | image |
| Nitzschia constricta var. mediterranea | Aleem | image |
| Nitzschia constricta var. minor | Grunow | image |
| Nitzschia constricta var. parva | Leuduger-Fortmorel | image |
| Nitzschia constricta var. putrida | (Cohn) Rabenhorst | image |
| Nitzschia constricta var. similis | Grunow | image |
| Nitzschia constricta var. subconstricta | Grunow | image |
| Nitzschia consummata | Hustedt | image |
| Nitzschia contorta | Mereschkowsky | image |
| Nitzschia copiastriata | Hohn & Hellerman | image |
| Nitzschia corpulenta | Hendey | image |
| Nitzschia corpulenta | N.I. Hendey | J. Roy. Microscop. Soc., ser. 3, | 77: 78, pl. I: fig. 5 | 1958 |
| Nitzschia costata | Meister | image |
| Nitzschia costata | Pantocsek | image |
| Nitzschia costei | L. Tudesque, F. Rimet, & L. Ector | Diatom Research | 23: 485, figs. 1-64, 111-123 | 2008 |
| Nitzschia coudertii | Heribaud | image |
| Nitzschia coutei | R. Maillard | Cah. O.R.S.T.O.M., Sér. Hydrobiol. | 12: 169, pl. II: fig. 12 | 1979 |
| Nitzschia crassepunctata | Archibald | image |
| Nitzschia creticola | Østrup | Danske Diat.: | 146, pl. IV: fig. 98 | 1910 |
| Nitzschia creticola Østrup | | image |
| Nitzschia cryptostriata | Hohn & Hellerman | image |
| Nitzschia cuba | Skvortzov | image |
| Nitzschia cuba var. gracilis | Skvortzov | image |
| Nitzschia cucumis | Konig | image |
| Nitzschia cuneata | Suringar | image |
| Nitzschia curiosa | Proschkina-Lavrenko | image |
| Nitzschia cursoria | (Donkin) Norman | Trans. Micr. Soc. London, ser. 2, | 6: 67 | 1860 |
| Nitzschia curta | (Van Heurck) Hasle | image |
| Nitzschia curvata | Compère | image |
| Nitzschia curvilineata | Hustedt | image |
| Nitzschia curvipunctata | Cholnoky | image |
| Nitzschia curvirostris | Cleve | image |
| Nitzschia curvirostris var. delicatissima | Lemmermann | image |
| Nitzschia curvula | (Kützing) Ralfs | image |
| Nitzschia curvula f. parva | Grunow | image |
| Nitzschia curvula f. parva | Rabenhorst | image |
| Nitzschia curvula var. genuina | Gutwinski | image |
| Nitzschia curvula var. subcapitata | Rabenhorst | Fl. Eur. Alg. | I: 156 | 1864 |
| Nitzschia curvula var. subrecta | (Grunow) Rabenhorst | image |
| Nitzschia curvula var. typica | Gutwinski | image |
| Nitzschia curvula | W. Smith | Syn. Brit. Diat. | II: 89 | 1856 |
| Nitzschia cuspidata | G.R. Hasle | Taxon | 23: 427 | 1974 |
| Nitzschia cuspidata | Hasle | image |
| Nitzschia custodis | Cholnoky | image |
| Nitzschia cylindrica | Burckle | image |
| Nitzschia cylindriformis_(`cylindroformis') | G.R. Hasle in Hasle & Booth | J. Plankton Res. | 6: 493, figs. 1-12 | 1984 |
| Nitzschia cylindroformis | Hasle | image |
| Nitzschia cylindrus | (Grunow) Hasle | image |
| Nitzschia dadwinensis | Foged | image |
| Nitzschia dagmannii | C.S. Lobban, M.P. Ashworth, J.J.M. Calaor, & E.C. Theriot | Phytotaxa | 401: 223, figs. 20, 100-106 | 2019 |
| Nitzschia dakariensis f. egyptica | Foged | image |
| Nitzschia dalmatica | M. Mucko & S. Bosak in Mucko et al. | J. Phycol. | 57: 147, figs. 1-3 | 2020 |
| Nitzschia damasii_('damasi') | Hustedt | image |
| Nitzschia davidsonii | Grunow & Dickie in Grunow | K. Svenska Vet. Akad. Handl. | [ser. 4], 17{2}: 75 | 1880 |
| Nitzschia dealpina | Lange-Bertalot & G. Hofmann in Lange-Bertalot | Biblioth. Diatomol. | 27: 146, pl. 114: figs. 8-13; pl. 115: figs. 1-4 | 1993 |
| Nitzschia debilis | Pantocsek | image |
| Nitzschia decora | Kitton | image |
| Nitzschia delauneyi | Manguin | image |
| Nitzschia delicatissima | Cleve | image |
| Nitzschia delicatula | Hasle | image |
| Nitzschia delicatula | Skvortzov | image |
| Nitzschia delognei | Grunow | image |
| Nitzschia demota | Archibald | image |
| Nitzschia densuensis | Foged | image |
| Nitzschia denticula f. aberrans | P. Fusey | image |
| Nitzschia denticula | Grunow | image |
| Nitzschia denticula var. amravatensis | Sarode & Kamat | image |
| Nitzschia denticula var. baikalensis | Skvortzov | image |
| Nitzschia denticula var. capitata | Frenguelli | image |
| Nitzschia denticula var. delognei | Grunow | image |
| Nitzschia denticula var. elongata | Mereschkowsky | image |
| Nitzschia denticula var. hyalina | Skvortzov | image |
| Nitzschia denticula var. rostrata | Gandhi | image |
| Nitzschia denticulata var. undulata | Skvortzov | Publ. Mus. Hoangho Paiho Tien Tsin | 36: 15, pl. 3: figs. 19, 20 | 1935 |
| Nitzschia denticuloides | Hustedt | image |
| Nitzschia denticuloides | Schrader | image |
| Nitzschia desertorum | Hustedt | image |
| Nitzschia destituta | D. Bennett & J.P. Kociolek in Kociolek et al. | Biblioth. Diatomol. | 61: 51, pl. 73: figs. 8-17; pl. 75 | 2014 |
| Nitzschia dianae | (Ehrenberg) Ralfs | image |
| Nitzschia diaphana | Cleve | image |
| Nitzschia dicrogramma | D.G. Mann & R. Trobajo | Eur. J. Phycol. | 49: 292, figs. 2-7, 10, 11, 18-21, 23, 28, 32-34 | 2014 |
| Nitzschia diducta f. alaskaensis | Foged | image |
| Nitzschia diducta | Hustedt | image |
| Nitzschia didyma | Hustedt | Ber. Deutsch. Bot. Ges. | 64: 309, fig. 20 | 1952 |
| Nitzschia didyma | S.-C. Liu & T.G. Chin | Universitatis Amoiensis, Acta Scientiarum Naturalium | 19(2): 111, fig. E | 1980 |
| Nitzschia dietrichii | Simonsen | image |
| Nitzschia dilatata | H. Peragallo & M. Peragallo | Diatomées Marines de France: | pl. LXXIII: fig. 9 (desc. on p. 285, 1901) | 1900 |
| Nitzschia diluta | Archibald | image |
| Nitzschia diluvialis | Cleve | image |
| Nitzschia diluviana | Cleve | image |
| Nitzschia dippelii | Grunow | image |
| Nitzschia directa | Pantocsek | image |
| Nitzschia directa var. torquata | Pantocsek | image |
| Nitzschia diserta | Hustedt | image |
| Nitzschia disputata | J. Carter | image |
| Nitzschia dissipata | (Kützing) Rabenhorst | image |
| Nitzschia dissipata f. maewensis | Foged | image |
| Nitzschia dissipata f. undulata | Sovereign | image |
| Nitzschia dissipata subsp. oligotraphenta | H. Lange-Bertalot in Lange-Bertalot & Metzeltin | Iconogr. Diatomol. | 2: 93, pl. 99: fig. 13-16. | 1996 |
| Nitzschia dissipata var. antarctica | M. Peragallo | image |
| Nitzschia dissipata var. borneensis | Hustedt | image |
| Nitzschia dissipata var. borneensis | Hustedt ex Simonsen | Atlas & Cat. Diatom Types Hustedt: | 59, pl. 335: figs. 22-24 in A. Schmidt's Atlas | 1987 |
| Nitzschia dissipata var. capitellata | J. Frenguelli & H.A. Orlando | Publ. Inst. Antárt. Argent. | 5: 103, pl. III: fig. 24 | 1958 |
| Nitzschia dissipata var. genuina | Mayer | image |
| Nitzschia dissipata var. media | (Hantzsch) Grunow in Van Heurck | Syn. Diat. Belg.: | pl. LXIII: figs. 2, 3 | 1881 |
| Nitzschia dissipata var. pygmaea | Mayer | image |
| Nitzschia dissipatoides | Archibald | image |
| Nitzschia distans | Gregory | image |
| Nitzschia distans | Gregory | image |
| Nitzschia distans var. australiensis | Grunow | image |
| Nitzschia distans var. erratica | Cleve | image |
| Nitzschia distans var. eximia | Grunow | image |
| Nitzschia distans var. labradorica | Cleve | image |
| Nitzschia distans var. quarnerensis | Grunow | image |
| Nitzschia distans var. sigmoidea | Grunow | image |
| Nitzschia distans var. subdilatata | Grunow | image |
| Nitzschia distans var. subsigmoidea | Grunow in Van Heurck | Syn. Diat. Belg.: | pl. LXII: fig. 18 | 1881 |
| Nitzschia distans var. tumescens | Grunow | image |
| Nitzschia divaricata | Meunier | image |
| Nitzschia divergens | Hustedt | Ber. Deutsch. Bot. Ges. | 64: 312, figs. 23-25 | 1952 |
| Nitzschia diversa | Hustedt | image |
| Nitzschia diversecostata | Brun | image |
| Nitzschia doljensis | Pantocsek | image |
| Nitzschia donahuei | Desikachary & Gowthaman | image |
| Nitzschia donahuensis | Schrader | image |
| Nitzschia draveillensis | M. Coste & M. Ricard | Cryptogamie: Algologie | 1: 190, pl. 2: fig. 32; pl. 10 [miscited 11]: figs. 70, 73, 74 | 1980 |
| Nitzschia droebakensis | Hasle | image |
| Nitzschia dubia var. australis | M. Peragallo | image |
| Nitzschia dubia var. constricta | (Kützing) Carruthers in J.E. Gray | Handb. Brit. Water-weeds: | 82 | 1864 |
| Nitzschia dubia var. constricta | (Kützing) Carruthers | image |
| Nitzschia dubia var. latestriata Østrup | | image |
| Nitzschia dubia var. minor | Grunow | image |
| Nitzschia dubia var. minor | Grunow | image |
| Nitzschia dubia var. minor | M. Peragallo | image |
| Nitzschia dubia var. scotica | Grunow | image |
| Nitzschia dubia var. siberica | Grunow | image |
| Nitzschia dubia | W. Smith | image |
| Nitzschia dubiiformis | Hustedt | image |
| Nitzschia ebroicensis | Maillard | image |
| Nitzschia eburnea | Zanon | image |
| Nitzschia efferans | Schrader | image |
| Nitzschia eglei | Lange-Bertalot | image |
| Nitzschia ehrenbergii | Ralfs | image |
| Nitzschia ehrenbergii | Schumann | image |
| Nitzschia electrae | C.S. Lobban, M.P. Ashworth, J.J.M. Calaor, & E.C. Theriot | Phytotaxa | 401: 227, figs. 121-129 | 2019 |
| Nitzschia elegans | Hustedt | image |
| Nitzschia elegantula | Grunow | image |
| Nitzschia elliptica | Hustedt | image |
| Nitzschia elliptica var. alexandrina | Cholnoky | image |
| Nitzschia elongata | (Hantzsch) Hantzsch ex Rabenhorst | Hedwigia | 2{7}: 40 (expl. pl. VI: fig. 5) | 1860 |
| Nitzschia elongata | Hantzsch | image |
| Nitzschia elongata | Hassall | image |
| Nitzschia elongata | Hassall | Brit. Freshw. Alg. | 1: 435 | 1845 |
| Nitzschia elongata var. linearis | (O. Müller) Frenguelli | image |
| Nitzschia elongata var. longissima | Frenguelli | image |
| Nitzschia elongata var. minor | A. Mayer | Denkschr. K. Bayer. Bot. Ges. | 13: 139, pl. II: fig. 30 | 1917 |
| Nitzschia entomon | (Ehrenberg) Ralfs | image |
| Nitzschia epiphytica | O. Mueller | Bot. Jahrb. | 36: 176, pl. II: figs. 17, 18 | 1905 |
| Nitzschia epiphytica | Otto Müller | image |
| Nitzschia epiphyticoides | Hustedt | Explor. Parc Natl. Albert, Mission H. Damas | 8: 144, pl. XIII: figs. 48-55 | 1949 |
| Nitzschia epithemiformis | Lange-Bertalot | image |
| Nitzschia epithemoides | Grunow | image |
| Nitzschia epithemoides var. disputata | (Carter) Lange-Bertalot | image |
| Nitzschia eppressa | Carter | image |
| Nitzschia epsilon | Kitton | image |
| Nitzschia erosa | Giffen | image |
| Nitzschia etoshensis | Cholnoky | image |
| Nitzschia eutinensis | H. Lange-Bertalot & M. Werum | Lauterbornia | 78: 131 | 2014 |
| Nitzschia evenescens | Schrader | image |
| Nitzschia examinanda | Cholnoky | image |
| Nitzschia exilis | Archibald | image |
| Nitzschia exilis | H.E. Sovereign | Trans. Amer. Microscop. Soc. | 79: 345 | 1960 |
| Nitzschia exilis | H.E. Sovereign | Trans. Amer. Microscop. Soc. | 77: 131, pl. IV: figs. 78 | 1958 |
| Nitzschia exilis | Sovereign | image |
| Nitzschia eximia | Grunow | image |
| Nitzschia extincta | Kozyrenko & Sheshukova-Poretskaya | image |
| Nitzschia faba | Frenguelli | image |
| Nitzschia faba | Frenguelli | image |
| Nitzschia fabiennejansseniana | C. Cocquyt & E. Ryken | Diatom Research | 32: 467, figs. 2-43 | 2017 |
| Nitzschia falcata | Otto Müller | image |
| Nitzschia famelica | (Kützing) Rabenhorst | image |
| Nitzschia febigeri | Grunow | image |
| Nitzschia febigeri_('febigerii') | Grunow | image |
| Nitzschia fenestralis | D. Grady, D.G. Mann & R. Trobajo | Fottea, Olomouc | 20: 39, figs. 2-20, 23, 26, 30, 34, 36-39, 41, 42, 45-49 | 2020 |
| Nitzschia fenestrata | Mereschkowsky | image |
| Nitzschia ferox | Hustedt | Ber. Deutsch. Bot. Ges. | 64: 311, fig. 13 | 1952 |
| Nitzschia ferraziae_('ferrazae') | Cholnoky | image |
| Nitzschia fibula-fissa | Lange-Bertalot | image |
| Nitzschia filia | Skvortzov | image |
| Nitzschia filiformis | (W. Smith) Schütt | image |
| Nitzschia filiformis var. conferta | (Richter) Lange-Bertalot | image |
| Nitzschia fina | Frenguelli | image |
| Nitzschia flexa | Schumann | image |
| Nitzschia flexa var. philippinica | Skvortzov | image |
| Nitzschia flexella | Suringar | image |
| Nitzschia flexoides | Geitler | image |
| Nitzschia flexoides | L. Geitler | Plant Syst. & Evol. | 156: 207, fig. 1 | 1987 |
| Nitzschia fluminensis | Grunow | image |
| Nitzschia fluminensis var. angusta | Grunow | image |
| Nitzschia fluminensis var. densestriata Østrup | | image |
| Nitzschia fluminensis var. subundulata | Grunow | image |
| Nitzschia fluorescens | B.E. Volcani & C.-W. Li in Li & Volcani, | Brit. Phycol. J. | 22: 376, figs. 7-11 | 1988 |
| Nitzschia fluvialis | Patrick & Freese | image |
| Nitzschia fogedii_('fogedi') | M. Möller | image |
| Nitzschia fonticola | (Grunow) Grunow | image |
| Nitzschia fonticola f. minutissima | Compère | image |
| Nitzschia fonticola var. constricta | Skvortzov | image |
| Nitzschia fonticola var. pelagica | Hustedt | A. Schmidt's Atlas: | pl. 349: figs. 15, 16 | 1924 |
| Nitzschia fonticola var. septentrionalis | Cleve-Euler | image |
| Nitzschia fonticoloides | H.E. Sovereign | Trans. Amer. Microscop. Soc. | 77: 130, pl. IV: figs. 58-62 | 1958 |
| Nitzschia fonticoloides | Sovereign | image |
| Nitzschia fontifuga | Cholnoky | image |
| Nitzschia forfica | Cholnoky | image |
| Nitzschia formica | Hantzsch | image |
| Nitzschia formosa Østrup | | image |
| Nitzschia fossalis | Hustedt | image |
| Nitzschia fossilis | (Frenguelli) T. Kanaya & I. Koizumi | J. Mar. Geol. Japan | 6: 47-66 | 1970 |
| Nitzschia fossilis | (Grunow) Grunow | image |
| Nitzschia fragilariiformis | Compère | Proc. Eighth Int. Diat. Symp. [Paris, 1984]: | 254, pls. 1, 2 [= figs. 1-16] | 1986 |
| Nitzschia fragilariiformis | Compère | image |
| Nitzschia fragilarioides | Grunow | image |
| Nitzschia franconica | Reinsch | image |
| Nitzschia franconica | Reinsch | image |
| Nitzschia franconica var. serpentina | Reinsch | image |
| Nitzschia franconica var. serpentina | Reinsch | image |
| Nitzschia fraudulenta | Cleve | Ann. Rep. Fish. Board Scotland | 15{3}: 300, pl. VIII: fig. 11 | 1897 |
| Nitzschia frauenfeldii | (Grunow) Grunow | image |
| Nitzschia frauenfeldii var. antarctica | M. Peragallo | image |
| Nitzschia fremontensis | Lohman & Andrews | image |
| Nitzschia frequens | Hustedt | image |
| Nitzschia frickei | Reichelt ex Hustedt | image |
| Nitzschia frigida | Grunow | image |
| Nitzschia frustuloides | Manguin | image |
| Nitzschia frustuloides var. tenuicollis | Manguin | image |
| Nitzschia frustulum | (Kützing) Grunow | image |
| Nitzschia frustulum f. constricta | Hustedt | image |
| Nitzschia frustulum var. acuta | Pantocsek | image |
| Nitzschia frustulum var. asiatica | Hustedt | image |
| Nitzschia frustulum var. bryophila | Hustedt | image |
| Nitzschia frustulum var. bulnheimiana | (Rabenhorst) Grunow | image |
| Nitzschia frustulum var. capitata | Pantocsek & Greguss | image |
| Nitzschia frustulum var. constricta | Pantocsek | image |
| Nitzschia frustulum var. curvata | Pantocsek | image |
| Nitzschia frustulum var. filiformis | Hajós | image |
| Nitzschia frustulum var. hantzschiana | (Rabenhorst) Comber | image |
| Nitzschia frustulum var. hungarica | Pantocsek | image |
| Nitzschia frustulum var. inconspicua | (Grunow) Grunow | image |
| Nitzschia frustulum var. indica | Skvortzov | image |
| Nitzschia frustulum var. kerguelenensis | É. Manguin in P. Bourrelly & É. Manguin | Mém. Inst. Sci. Madagascar, Sér. B, Biol. Vég. | 5: 42, pl. VII: fig. 68 | 1955 |
| Nitzschia frustulum var. kerguelenensis | Manguin | image |
| Nitzschia frustulum var. minuta | Pantocsek | image |
| Nitzschia frustulum var. minutula | Grunow | image |
| Nitzschia frustulum var. mongolica | Skvortzov | Publ. Mus. Hoangho Paiho Tien Tsin | 36: 34, pl. 8: figs. 28, 29 | 1935 |
| Nitzschia frustulum var. oblonga | Hajós | image |
| Nitzschia frustulum var. obtusa | Pantocsek | image |
| Nitzschia frustulum var. perminuta | Grunow | image |
| Nitzschia frustulum var. perpusilla | (Rabenhorst) Van Heurck | image |
| Nitzschia frustulum var. producta | Pantocsek | image |
| Nitzschia frustulum var. recurvata | Pantocsek & Greguss | image |
| Nitzschia frustulum var. rostrata | Manguin | image |
| Nitzschia frustulum var. subsalina | Hustedt | image |
| Nitzschia frustulum var. subserians | (Grunow) Grunow | image |
| Nitzschia frustulum var. symbiotica | Lee & Reimer | image |
| Nitzschia frustulum var. tenella | Grunow | image |
| Nitzschia fruticosa | Hustedt | image |
| Nitzschia fundi | Cholnoky | image |
| Nitzschia fusiformis | Grunow | image |
| Nitzschia fusoides | Ehrlich | image |
| Nitzschia fussiformis | Pantocsek | image |
| Nitzschia gaarderi | Hasle | Skr. Norske Vid.-Akad. Oslo, Mat.-Naturv. Kl. | 1960{2}: 23, pl. V: fig. 49, text-fig. 13 | 1960 |
| Nitzschia gaertnerae_('gaertneriae') | H. Lange-Bertalot in H. Lange-Bertalot & D. Metzeltin | Iconogr. Diatomol. | 2: 94, pl. 68: figs. 6-11 | 1996 |
| Nitzschia galinarum | H. Lange-Bertalot & Kulikovskiy in Kulikovskiy, Lange-Bertalot & Kuznetsova | Iconographia Diatomologica | 26: 128 | 2015 |
| Nitzschia gallica | (Brun) Pantocsek | image |
| Nitzschia gandersheimiensis f. tenuirostris | (Grunow) Lange-Bertalot | image |
| Nitzschia gandersheimiensis | Krasske | image |
| Nitzschia gandersheimiensis | Krasske | image |
| Nitzschia gaoi | Bing Liu, S. Blanco & B.Q. Huang | Phytotaxa | 231: 266, figs. 23-49 | 2015 |
| Nitzschia garrensis | Hustedt | image |
| Nitzschia gazellae | G. Karsten | Wiss. Ergeb. Deutsch. Tiefsee-Exped. 1898-1899 | 2{2}: 128, pl. 18: fig. 9 | 1906 |
| Nitzschia gazellae | Karsten | image |
| Nitzschia geitleri | Hustedt | image |
| Nitzschia gelida | Cleve & Grunow | image |
| Nitzschia gelida | Cleve & Grunow | image |
| Nitzschia geniculata | Hustedt | image |
| Nitzschia gentilis | Rochoux d'Aubert | image |
| Nitzschia gentilis var. elliptica | Rochoux d'Aubert | image |
| Nitzschia germanica | (P. Richter) Migula | Krypt.-Fl. Deutschl., Alg. | 1: 338 | 1906 |
| Nitzschia gessneri | Hustedt | image |
| Nitzschia ghanaensis | Foged | image |
| Nitzschia gieskesii | Cholnoky | image |
| Nitzschia gigantea | (Ehrenberg) Ralfs | image |
| Nitzschia gisela | Lange-Bertalot | image |
| Nitzschia glaberrima Østrup | | image |
| Nitzschia glabra Østrup | | image |
| Nitzschia glacialis | Grunow | image |
| Nitzschia glacialis var. tenuior | Cleve-Euler | image |
| Nitzschia glandiformis | Hustedt | image |
| Nitzschia gobbii | S. Accoroni, T. Romagnoli, S. Giulietti & C. Totti in Giulietti et al. | Phycologia | 60: 562, figs. 1-26 | 2021 |
| Nitzschia goetzeana | O. Müller | Bot. Jahrb. | 36: 176, pl. II: fig. 20 | 1905 |
| Nitzschia goetzeana var. gracilior | Hustedt | image |
| Nitzschia goetzeana var. gracilior | Hustedt | image |
| Nitzschia goetzeana var. natalensis | Cholnoky | image |
| Nitzschia goteborgensis | Aleem, inval. | image |
| Nitzschia gracilenta | Grunow | image |
| Nitzschia graciliformis | Lange-Bertalot & Simonsen | image |
| Nitzschia gracilis f. acicularoides | M. Coste & M. Ricard | Cryptogamie: Algologie | 1: 191, pl. 1: fig. 2 | 1980 |
| Nitzschia gracilis f. brevis | Manguin | image |
| Nitzschia gracilis | Hantzsch in Rabenhorst | Alg. Sachs. Dec. | 95/96: no. 946 | 1860 |
| Nitzschia gracilis var. capitata | Wislouch & Poretzky in Poretzky | Trudy Leningradskago Obschchestva Estestvoispytatelei | 53(3): 147, fig. 9 | 1924 |
| Nitzschia gracilis var. minor | Skabitschevskii | image |
| Nitzschia gracilis var. turfacea | Steinecke | image |
| Nitzschia gracillima | Heiden & Kolbe | image |
| Nitzschia graciloides | Gandhi | image |
| Nitzschia graciloides | H.P. Gandhi | Beih. Nova Hedwigia | 31: 785, pl. III: fig. 98 | 1970 |
| Nitzschia graciloides | Hustedt | image |
| Nitzschia graciloides | Hustedt | image |
| Nitzschia gradifera | Hustedt | image |
| Nitzschia graeffei var. bicuneata | Grunow | image |
| Nitzschia graeffei_('graeffii') | Grunow ex Cleve | Bih. K. Svenska Vet. Akad. Handl. | 5{8}: 20, fig. 32 | 1878 |
| Nitzschia grana | Hohn & Hellerman | image |
| Nitzschia grandis | F. Kitton | Monthly Microscopical Journal, ser. 3, | 12: 219, pl. LXXXII: figs. 5, 6 | 1874 |
| Nitzschia grandis | Kitton | image |
| Nitzschia granii | G.R. Hasle | Taxon | 23: 426 | 1974 |
| Nitzschia granii | Hasle | image |
| Nitzschia granii var. curvata | Hasle | image |
| Nitzschia granulata f. impressa | Manguin | image |
| Nitzschia granulata | Grunow | K. Svenska Vet. Akad. Handl. | [ser. 4], 17{2}: 68 | 1880 |
| Nitzschia granulata var. doljensis | (Pantocsek) Lange-Bertalot | image |
| Nitzschia granulata var. gelida | M. Peragallo | image |
| Nitzschia granulata var. hispanica | Azpeitia y Moros | image |
| Nitzschia granulata var. hyalina | Amossé | Bull. Mus. Natl. Hist. Nat. [Paris] | 30: 165, fig.1 | 1924 |
| Nitzschia granulata var. hyalina | Amosse | image |
| Nitzschia granulata var. maeotica | Pantocsek | image |
| Nitzschia granulosa | Leuduger-Fortmorel | image |
| Nitzschia grigoriewi | Mereschkowsky | image |
| Nitzschia groenlandica Østrup | | image |
| Nitzschia grossepunctata | Schrader | image |
| Nitzschia grossestriata | Hustedt | image |
| Nitzschia groveana | De Toni | image |
| Nitzschia grovei | De Toni & Levi-Morenos | image |
| Nitzschia grovei | Grunow | image |
| Nitzschia gruendleri | Grunow | image |
| Nitzschia gruendleri var. antarctica | Heiden & Kolbe | image |
| Nitzschia grunowii | Hasle | image |
| Nitzschia guadalupensis | Manguin | image |
| Nitzschia guamensis | C.S. Lobban, M.P. Ashworth, J.J.M. Calaor, & E.C. Theriot | Phytotaxa | 401: 223, figs. 107-111 | 2019 |
| Nitzschia guineensis | Hustedt | image |
| Nitzschia guttula | H.J. Schrader in Schrader & Fenner | Initial Rep. Deep Sea Drilling Project | 38: 991, pl. 1: fig. 8, 9 | 1976 |
| Nitzschia guttula | Schrader | image |
| Nitzschia gyrosigma | T. Ohtsuka | Phycol. Res. | 53: 144, figs. 29-43 | 2005 |
| Nitzschia hadriatica | H. Lange-Bertalot apud K. Krammer & H. Lange-Bertalot in H. Ettl et al. (eds.) | Süsswasserfl. Mitteleuropa | 2{2}, ed. 2: 594, pl. 69: fig. 21 (as Nitzschia liebetruthii var. major Grunow) | 1997 |
| Nitzschia halloyii | N.I. Maidana & N. Herbst | Darwiniana | 28: 73, pl. 2: figs. 10-14 | 1988 |
| Nitzschia haloserbica | D. Vidaković, L. Ector, C.E. Wetzel & J. Krizmanić in Vidaković et al. | Cryptogamie, Algologie | 43: 87, figs. 2, 3 | 2022 |
| Nitzschia halteriformis | Hustedt | Ber. Deutsch. Bot. Ges. | 64: 311, fig. 26 | 1952 |
| Nitzschia hankensis | Skvortzov | image |
| Nitzschia hantzschiaeformis | Fritsch & Rich | image |
| Nitzschia hantzschiaeformis var. constricta | Fritsch & Rich | image |
| Nitzschia hantzschiana f. subserians | (Grunow) Hustedt | image |
| Nitzschia hantzschiana f. subserians | Grunow | image |
| Nitzschia hantzschiana | Rabenhorst | Alg. Sachs. Dec. | 95/96: no. 943 | 1860 |
| Nitzschia hantzschiana | Rabenhorst mspt. | image |
| Nitzschia hantzschiana var. glacialis | Grunow | image |
| Nitzschia harderi | Hustedt | image |
| Nitzschia harrisonii | Cholnoky | image |
| Nitzschia harrisonii | Cholnoky | image |
| Nitzschia haslea | F.R. Schoeman in Schoeman & Meaton | CSIR Special Report WAT | 64: 33 | 1982 |
| Nitzschia hassiaca | Krasske | image |
| Nitzschia hastata | Skvortzov | image |
| Nitzschia hastata var. obtusa | Skvortzov | image |
| Nitzschia hastata var. parallelestriata | Skvortzov | image |
| Nitzschia heidenii var. baicalensis | Skvortzov & Meyer | image |
| Nitzschia heidenii var. lanceolata | Kobayasi | image |
| Nitzschia heidenii var. minor | H. Kobayasi | image |
| Nitzschia heidenii var. pamirensis | Petersen | image |
| Nitzschia heidenii_('heideni') | (Meister) Hustedt | image |
| Nitzschia heimii | (Manguin) Hasle | image |
| Nitzschia hemistriata | Hagelstein | N.Y. Acad. Sci., Sci. Surv. Porto Rico & Virgin Is. | 8: 396, pl. 8: fig. 1 | 1939 |
| Nitzschia heteropolica | H.J. Schrader | Initial Rep. Deep Sea Drilling Project | 18: 707, pl. 26: figs. 1, 2 | 1973 |
| Nitzschia heteropolica | Schrader | image |
| Nitzschia heufleriana | Grunow | image |
| Nitzschia heufleriana var. asiatica | Skvortzov | image |
| Nitzschia heufleriana var. elongata | Pantocsek | image |
| Nitzschia heufleriana var. major | M. Peragallo | image |
| Nitzschia heufleriana var. recta Østrup | | image |
| Nitzschia hevesensis | Pantocsek | image |
| Nitzschia hiemalis | Hustedt | image |
| Nitzschia hiengheneana | E. Manguin ex Kociolek & Reviers | Cryptogamie: Algologie | 17: 212 | 1996 |
| Nitzschia hiengheneana | E. Manguin | Mém. Mus. Natl. Hist. Nat. [Paris], Sér. B, Bot. | 12: 32, pl. VI: fig. 5 | 1962 |
| Nitzschia hiengheneana | Manguin | image |
| Nitzschia hierosolymitana | D.G. Mann | image |
| Nitzschia hoehnkii | Hustedt | image |
| Nitzschia hollerupensis | Foged | image |
| Nitzschia holsatica | Hustedt | image |
| Nitzschia homburgiensis | Lange-Bertalot | image |
| Nitzschia homoeocladia | Heiberg | image |
| Nitzschia hondoensis | Hanna & Grant | image |
| Nitzschia hudsonii | M. Poulin & A. Cardinal | Canad. J. Bot. | 61: 111, fig. 20 | 1983 |
| Nitzschia hummii | Hustedt | image |
| Nitzschia hungarica f. curta | Skvortzov & Meyer | image |
| Nitzschia hungarica f. maeotica | Proschkina-Lavrenko | image |
| Nitzschia hungarica | Grunow | Verh. K.-K. Zool.-Bot. Ges. Wien | 12: 568, pl. 12: fig. 31 | 1862 |
| Nitzschia hungarica var. apiculata | Manguin & Bourrelly | image |
| Nitzschia hungarica var. genuina | Grunow | image |
| Nitzschia hungarica var. genuina | Grunow | Kongl. Svenska Vetensk.Akad. Handl., ser. 4, | 17{2}: 73 | 1880 |
| Nitzschia hungarica var. linearis | Grunow | Kongl. Svenska Vetensk.-Akad. Handl., ser. 4, | 17{2}: 73 | 1880 |
| Nitzschia hungarica var. maior | Liebetanz | image |
| Nitzschia hungarica var. pantocsekii | Wislouch & Poretzky in Poretzky | Trudy Leningradskago Obschchestva Estestvoispytatelei | 53(3): 147, fig. 6 | 1924 |
| Nitzschia huniensis | Foged | image |
| Nitzschia hustedtiana | Hustedt | image |
| Nitzschia hustedtiana | Salah | image |
| Nitzschia hustedtii | Sheshukova in Proshkina-Lavrenko & Sheshukova (eds.) | Diatomovyi Sbornik: | 152, fig. 11 | 1953 |
| Nitzschia hustedtii_('hustedti') | Debes ex Hustedt | image |
| Nitzschia hyalina | Gregory | image |
| Nitzschia hybrida f. hyalina | Proschkina-Lavrenko | image |
| Nitzschia hybrida | Grunow | image |
| Nitzschia hybrida var. gaspesiana | M. Poulin, C. Hudon, & A. Cardinal | Naturaliste Canad. | 109: 280, figs. 1c, 7, 8 | 1982 |
| Nitzschia hybrida var. kryokonites | Cleve | image |
| Nitzschia hybrida var. pellucida | Grunow | image |
| Nitzschia hybridaeformis | Hustedt | image |
| Nitzschia hybridaeformis var. pannucea | Giffen | image |
| Nitzschia hyperborea var. nystroemii | (Grunow) Cleve | image |
| Nitzschia ignimontana | Brun & Heribaud | image |
| Nitzschia ignorata f. longissima | É. Manguin in P. Bourrelly & É. Manguin | Mém. Inst. Sci. Madagascar, Sér. B, Biol. Vég. | 5: 42, pl. XI: fig. 103 | 1955 |
| Nitzschia ignorata f. longissima | Manguin | image |
| Nitzschia ignorata | Krasske | image |
| Nitzschia ignorata var. asiatica | Skvortzov | image |
| Nitzschia ignorata var. rousselinii | R. Maillard | Cah. O.R.S.T.O.M., Sér. Hydrobiol. | 12: 169, pl. II: fig. 11 | 1979 |
| Nitzschia iltisii | Compère | image |
| Nitzschia imae | I. Álvarez-Blanco & S. Blanco | Anales del Jardín Botánico de Madrid | 70: 145, figs. 2-31 | 2013 |
| Nitzschia immunda | Archibald | image |
| Nitzschia impressa | Hustedt | image |
| Nitzschia improvisa | R. Simonsen in Hinz, Simonsen, & Crawford | Diatom Res. | 27: 88 | 2012 |
| Nitzschia improvisa | R. Simonsen | Kieler Meeresf. | 16: 130, pl. 2: figs. 19, 20 | 1960 |
| Nitzschia improvisa | Simonsen | image |
| Nitzschia incognita | Krasske | image |
| Nitzschia incognita | Krasske | Arch. Hydrobiol. | 38: 276, pl. V: figs. 2, 3 | 1941 |
| Nitzschia incognita | Legler & Krasske | image |
| Nitzschia incolor | Mereschkowsky | image |
| Nitzschia incolor var. sigmoidea | Mereschkowsky | image |
| Nitzschia incomptus | Hohn & Hellerman | image |
| Nitzschia inconspicua | Grunow | image |
| Nitzschia incrustans | Grunow | image |
| Nitzschia incrustans var. dubia | Grunow | image |
| Nitzschia incrustans var. minor | Grunow | image |
| Nitzschia incurva | Grunow | image |
| Nitzschia incurva var. densestriata | H. Peragallo & M. Peragallo | Diatomées Marines de France: | pl. LXXIV: figs. 21 22 (desc. on p. 294, 1901) | 1900 |
| Nitzschia incurva var. lorenziana | R. Ross | image |
| Nitzschia incurva var. subtilis | (Grunow) R. Ross | image |
| Nitzschia indica | H.J. Schrader | Initial Rep. Deep Sea Drilling Project | 24: 915, pl. 5: figs. 16, 17 | 1974 |
| Nitzschia indica | Schrader | image |
| Nitzschia indistincta | Mikhailov | image |
| Nitzschia inducta | Hustedt | Ber. Deutsch. Bot. Ges. | 64: 310, fig. 17 | 1952 |
| Nitzschia inflata | Kufferath | image |
| Nitzschia inflatula | G.R. Hasle | Taxon | 23: 427 | 1974 |
| Nitzschia inflatula | Hasle | image |
| Nitzschia inflatula var. capitata | Simonsen | image |
| Nitzschia ingens f. curta | Frenguelli | image |
| Nitzschia ingens | Frenguelli | image |
| Nitzschia ingenua | Hustedt | image |
| Nitzschia inimasta | Carter & Denny | image |
| Nitzschia innominata | H.E. Sovereign | Trans. Amer. Microscop. Soc. | 79: 345 | 1960 |
| Nitzschia innominata | H.E. Sovereign | Trans. Amer. Microscop. Soc. | 77: 120, pl. IV: figs. 29-31 | 1958 |
| Nitzschia innominata | Sovereign | image |
| Nitzschia inordinata | M. Mucko & S. Bosak in Mucko et al. | J. Phycol. | 57: 152, figs. 6, 7 | 2020 |
| Nitzschia insecta | Hustedt | image |
| Nitzschia insignis | Gregory | image |
| Nitzschia insignis var. arctica | Grunow | image |
| Nitzschia insignis var. genuina | Grunow | image |
| Nitzschia insignis var. lanceolata | Hustedt | image |
| Nitzschia insignis var. marginifera | Grunow | image |
| Nitzschia insignis var. mauritiana | Grunow | image |
| Nitzschia insignis var. niceaensis | H. Peragallo & M. Peragallo | Diatomées Marines de France: | pl. LXXV: fig. 10 (desc. on p. 296, 1901) | 1900 |
| Nitzschia insignis var. notabilis | Grunow | K. Svenska Vet.-Akad. Handl., ser. 4, | 17{2}: 84 | 1880 |
| Nitzschia insignis var. spathulifera | Grunow | image |
| Nitzschia interfrigidaria | McCollum | image |
| Nitzschia intermedia f. actinastroides | (Lemmermann) Lange-Bertalot | image |
| Nitzschia intermedia f. bengalensis | Grunow | image |
| Nitzschia intermedia | Hantzsch ex Cleve & Grunow | image |
| Nitzschia intermedia var. capitata | Hustedt | image |
| Nitzschia intermedia var. robusta | Hustedt | image |
| Nitzschia intermissa | Hustedt | image |
| Nitzschia interrupta | (Grunow) Meister | image |
| Nitzschia interrupta | Heiden & Kolbe | image |
| Nitzschia interrupta var. baikalensis | Skvortzov | image |
| Nitzschia interruptestriata | Simonsen | image |
| Nitzschia inversa | Grunow | image |
| Nitzschia invicta f. lanceolata | Hustedt | image |
| Nitzschia invicta | Hustedt | image |
| Nitzschia invisa | H.J. Schrader | Initial Rep. Deep Sea Drilling Project | 18: 707, pl. 26: fig. 5 | 1973 |
| Nitzschia invisa | Schrader | image |
| Nitzschia invisitata | Hustedt | image |
| Nitzschia iranica | Compère | image |
| Nitzschia irregularis | R. Ross & G. Abdin | J. Roy. Micr. Soc., ser. 3, | 69: 225, pl. I: fig. 1 | 1949 |
| Nitzschia irremissa | Cholnoky | image |
| Nitzschia irrepta | Hustedt | image |
| Nitzschia irresoluta f. minor | Foged | image |
| Nitzschia irresoluta | Hustedt | image |
| Nitzschia irritans | Cholnoky | image |
| Nitzschia islandica Østrup | | image |
| Nitzschia italica | (Rabenhorst) Ralfs | image |
| Nitzschia iugiformis | Hustedt | image |
| Nitzschia jalgaonensis | Sarode & Kamat | image |
| Nitzschia janei | Salah | image |
| Nitzschia janischii | Grunow | K. Svenska Vet.-Akad. Handl., ser. 4, | 17{2}: 82, no fig. | 1880 |
| Nitzschia januaria | Schrader | image |
| Nitzschia japonica | Meister | image |
| Nitzschia japonica | Skvortzov | image |
| Nitzschia jelineckii | Grunow | image |
| Nitzschia jelinekiana | Grunow | image |
| Nitzschia jelinekii var. elongata | Grunow | image |
| Nitzschia jelinekii var. subcostata | Grunow | image |
| Nitzschia jelinekii_('jelineckii') | Grunow | Verh. K.-K. Zool.-Bot. Ges. Wien | 13: 144, pl. 14: fig. 4 | 1863 |
| Nitzschia jeniseyensis | Skvortzov | image |
| Nitzschia johnmartinii | Fryxell & Kaczmarska | image |
| Nitzschia johnmartinii | G.A. Fryxell & I. Kaczmarska in I. Kaczmarska & G.A. Fryxell | Diatom Res. | 9: 88, figs. 1-7 | 1994 |
| Nitzschia jonssonii_('jonssoni') Østrup | | image |
| Nitzschia jordanii | C.S. Lobban, M.P. Ashworth, J.J.M. Calaor, & E.C. Theriot | Phytotaxa | 401: 213, figs. 52-55 | 2019 |
| Nitzschia jouseae | Burckle | Beih. Nova Hedwigia | 39: 240, pl. 2, figs. 17-21 | 1972 |
| Nitzschia jouseana | Skvortzov | image |
| Nitzschia jucunda | Hustedt | image |
| Nitzschia jugata | Gandhi | image |
| Nitzschia jugata var. allahabadii | Pandey, Tiwari & Pandey | image |
| Nitzschia jugata var. gracilis | Gandhi | image |
| Nitzschia jugata var. patrickiae | Martinez-Goss | image |
| Nitzschia jugata var. patrickiae_(`patrickae') | M.R. Martinez-Goss | Proc. Acad. Nat. Sci. Philadelphia | 147: 120, figs. 3, 5-7 | 1997 |
| Nitzschia jugiformis | Hustedt | image |
| Nitzschia kahlii | H. Lange-Bertalot & U. Rumrich in U. Rumrich, H. Lange-Bertalot, & M. Rumrich | Iconogr. Diatomol. | 9: 183, pl. 165: figs. 3-10 | 2000 |
| Nitzschia kaikonkiensis | Woodhead & Tweed | image |
| Nitzschia kanakarum | G. Moser, H. Lange-Bertalot & D. Metzeltin | Insel der Endemiten: Geobotanisches Phänomen Neukaledonien (Bibliotheca Diatomologica 38): | 209 | 1998 |
| Nitzschia kanayae_('kanayai') | T.V. Desikachary & S. Gowthaman in T.V. Desikachary | Atlas Diat. | 6: 15 | 1989 |
| Nitzschia kanayensis | Schrader | image |
| Nitzschia kapimbiensis_('kapimbiense') | Kufferath | Expl. Hydrobiol. Lac Tanganika (1946-1947), Rés. Sci. | 4{3}: 42, pl. V: figs. 12, 13 | 1956 |
| Nitzschia karrooensis | Cholnoky | image |
| Nitzschia kavirondoensis | L. Sitoki & E. Rott in Sitoki et al. | Diatom Research | 28: 167, figs. 8-12, 20-29 | 2013 |
| Nitzschia kenaiensis | J.L. Stone in McLaughlin & Stone | Beih. Nova Hedwigia | 82: 90, pl. 12: figs. 190, 191 | 1986 |
| Nitzschia kerguelensis | (O'Meara) Hasle | image |
| Nitzschia khursevichiae_('khursevichae') | H. Lange-Bertalot & Kulikovskiy in Kulikovskiy, Lange-Bertalot & Kuznetsova | Iconographia Diatomologica | 26: 131 | 2015 |
| Nitzschia kimberliensis | M. Potapova in M. Potapova & D.F. Charles | Proc. Int. Diat. Symp. | 17: 289, figs. 13-19, 25 | 2004 |
| Nitzschia kisselewii | Skvortzov | image |
| Nitzschia kittlii | Grunow | image |
| Nitzschia kittlii var. minor Østrup | | image |
| Nitzschia kittonii_('kittoni') | H.L. Smith | image |
| Nitzschia kleinteichiana | S. Hamsher, K. Kopalová, J.P. Kociolek, R. Zidarova, & B. Van de Vijver | Fottea, Olomouc | 16: 88, figs. 77-97 | 2016 |
| Nitzschia knysnensis | Cholnoky | image |
| Nitzschia kociolekii | B. Alakananda, B. Karthick, J.C. Taylor & P.B. Hamilton | Phycol. Research | 63: 31, figs. 10-36 | 2014 |
| Nitzschia koehleri_('köhleri') | Lauby | image |
| Nitzschia kolaczekii | Grunow | image |
| Nitzschia kolaizeckii | Grunow | image |
| Nitzschia kotschii | (Grunow) F.W. Mills | image |
| Nitzschia kowiensis | Giffen | image |
| Nitzschia krachiensis | Foged | image |
| Nitzschia krenicola | Cholnoky | image |
| Nitzschia kryophila | Cleve | Vega-Exped. Vet. Iaktt. | 3: 480, pl. 38: fig. 74 | 1883 |
| Nitzschia kuetzingiana f. exigua | Berg | image |
| Nitzschia kuetzingiana f. multiplex | Cleve-Euler ex Wiedling | image |
| Nitzschia kuetzingiana f. terrestris | Petersen | image |
| Nitzschia kuetzingiana | Hilse | image |
| Nitzschia kuetzingiana | Hilse | image |
| Nitzschia kuetzingiana var. capitata | Poretzky | image |
| Nitzschia kuetzingiana var. exilis | Grunow | image |
| Nitzschia kuetzingiana_('Kützingiana') | Hilse in Rabenhorst | Alg. Eur.: | 1267 | 1863 |
| Nitzschia kuetzingii | Rabenhorst | image |
| Nitzschia kuetzingioides | Hustedt | image |
| Nitzschia kufferathii | Woodhead & Tweed | image |
| Nitzschia kurziana var. multistriata | (Hohn) S.E. Hamsher, J.P. Kociolek, S.A. Spaulding, & A.I. Saleh | Fottea | 21: 252 | 2021 |
| Nitzschia kurziana_('kurzeana') | Rabenhorst | Alg. Eur.: | 232/233: no. 2312 | 1870 |
| Nitzschia kurzii | Rabenhorst | image |
| Nitzschia kurzii | Rabenhorst ex Cleve & Moller | image |
| Nitzschia labella | G. Moser, H. Lange-Bertalot & D. Metzeltin | Insel der Endemiten: Geobotanisches Phänomen Neukaledonien (Bibliotheca Diatomologica 38): | 210, pl. 59: figs. 6-11 | 1998 |
| Nitzschia labuensis | Cleve | image |
| Nitzschia lacessens | Cholnoky | image |
| Nitzschia lacrima | Gersonde | image |
| Nitzschia lacrima | R. Gersonde | Polarforschung | 59: 148, pl. 1: figs. 1-6, 26; pl. 2: figs. 1-3 | 1991 |
| Nitzschia lacuna | Patrick & Freese | image |
| Nitzschia lacunarum | Hustedt | image |
| Nitzschia lacunensis | Cholnoky | image |
| Nitzschia lacunicola | Patrick & Freese | image |
| Nitzschia lacus-karluki | E. Manguin ex Kociolek & Reviers | Cryptogamie: Algologie | 17: 189 | 1996 |
| Nitzschia lacus-karluki_('lacus karluki') | E. Manguin | Rev. Alg. n.s. | 5: 283, pl. IV(30): figs. 1, 2 | 1961 |
| Nitzschia lacus-karluki_('lacus karluki') | Manguin | image |
| Nitzschia lacustris | Hustedt | image |
| Nitzschia lacustris | Hustedt | image |
| Nitzschia lacuum | Lange-Bertalot | image |
| Nitzschia laevis | Hustedt | image |
| Nitzschia laevis | Hustedt | Abh. Naturw. Ver. Bremen | 31: 662, figs. 116-118 | 1939 |
| Nitzschia laevis_('levis') | Frenguelli | Bol. Acad. Nac. Cienc. Córdoba | 27: 91, pl. VIII: fig. 3 | 1923 |
| Nitzschia laevissima | Grunow | image |
| Nitzschia laevissima | Grunow | image |
| Nitzschia lagunae | Cholnoky | image |
| Nitzschia lagunensis | M.R. Martinez-Goss | Proc. Acad. Nat. Sci. Philadelphia | 147: 119, figs. 1, 2 | 1997 |
| Nitzschia lagunensis | Martinez-Goss | image |
| Nitzschia lahusenii | Pantocsek | image |
| Nitzschia lamprocampa | Hantzsch | image |
| Nitzschia lamprocampa | Hantzsch ex Cleve & Grunow | image |
| Nitzschia lanceola | Grunow | image |
| Nitzschia lanceola var. minutula | Grunow | image |
| Nitzschia lanceolata | (Donahue) Abbott | image |
| Nitzschia lanceolata f. australis | Manguin | image |
| Nitzschia lanceolata f. costata | Yu.B. Okolodkov | Nov. Sist. Nizsh. Rast. [Bot. Inst. Akad. Nauk SSSR] | 28: 31, fig. 2 | 1992 |
| Nitzschia lanceolata f. minima | Grunow | image |
| Nitzschia lanceolata f. minor | Grunow | image |
| Nitzschia lanceolata f. pusilla | Grunow | image |
| Nitzschia lanceolata var. incrassata | H. Peragallo & M. Peragallo | Diatomées Marines de France: | pl. LXXIII: fig. 22 (desc. on p. 285, 1901) | 1900 |
| Nitzschia lanceolata var. incrustans | (Grunow) Grunow | image |
| Nitzschia lanceolata var. pygmaea | Cleve | image |
| Nitzschia lanceolata var. pygmaea | P. Cleve | image |
| Nitzschia lanceolata | W. Smith | image |
| Nitzschia lancettula f. minor | Otto Müller | image |
| Nitzschia lancettula | Otto Müller | image |
| Nitzschia lancettula var. chinensis | Skvortzov | image |
| Nitzschia lancettuloides | Hustedt | image |
| Nitzschia lange-bertalotii | Coste & Ricard | image |
| Nitzschia lascrucensis | C.S. Lobban & C.E. Wetzel in Lobban et al. | Phytotaxa | 401: 211, figs. 46-51 | 2019 |
| Nitzschia lata | O. Witt | J. Mus. Godeffroy [Hamburg] | 1: 66; pl. 8: fig. 6 | 1873 |
| Nitzschia lata var. elegans | Lagerstedt | image |
| Nitzschia latens | Hustedt | image |
| Nitzschia latestriata | (Brebisson) Ralfs | image |
| Nitzschia latestriata f. intermedia | Thomas & Gonzalves | image |
| Nitzschia latestriata var. panduriformis | (Gregory) Rabenhorst | Fl. Eur. Alg. | I: 154 | 1864 |
| Nitzschia latiuscula | Grunow in Van Heurck | Syn. Diat. Belg.: | pl. LXV: fig. 3 | 1881 |
| Nitzschia lauenburgiana | Hustedt | image |
| Nitzschia lawsonii | Foged | image |
| Nitzschia lecointei | Van Heurck | image |
| Nitzschia leehyi | G. Fryxell | Diatom Research | 15: 57, figs. 25-39 | 2000 |
| Nitzschia legleri | Hustedt | image |
| Nitzschia leistikowii | Lange-Bertalot | image |
| Nitzschia lejartii | Amosse | image |
| Nitzschia lentiformis | Mikhailov | image |
| Nitzschia lepotieri | Amosse | image |
| Nitzschia lesbia | Cholnoky | image |
| Nitzschia lesinensis | Grunow | image |
| Nitzschia lesinensis var. diminuta | Grunow | image |
| Nitzschia lesothensis | Schoeman | image |
| Nitzschia leucosigma | Benecke | image |
| Nitzschia levandensis f. minor | Lanzi | image |
| Nitzschia levidensis | (W. Smith) Grunow | image |
| Nitzschia levidensis var. victoriae | (Grunow) Cholnoky | image |
| Nitzschia levis | Frenguelli | image |
| Nitzschia liebethruthii | Rabenhorst | Fl. Eur. Alg. | I: 157 | 1864 |
| Nitzschia liebethruthii var. major | Cleve & Möller | image |
| Nitzschia liebethruthii var. minuscula | Grunow | image |
| Nitzschia liebethruthii var. perminuta | Cleve-Euler | image |
| Nitzschia liebethruthii var. siamensis | Hustedt | image |
| Nitzschia liebetruthii var. major | Grunow in Cleve & Möller | Diatoms: | nos. 208-210 | 1879 |
| Nitzschia ligowskii | A. Witkowski, H. Lange-Bertalot, J.P. Kociolek, & A. Brzezińska in A. Witkowski et al. | Phycologia | 43: 584, figs. 26-81 | 2004 |
| Nitzschia limes | Pantocsek | image |
| Nitzschia limi | Frenguelli | image |
| Nitzschia limi var. minor | Frenguelli | image |
| Nitzschia limicola | Grunow | K. Svenska Vet. Akad. Handl., ser. 4, | 17{2}: 70 | 1880 |
| Nitzschia limulus | Hohn & Hellerman | image |
| Nitzschia linearis f. constricta | Mayer | image |
| Nitzschia linearis f. major | Manguin | image |
| Nitzschia linearis f. minuta | Otto Müller | image |
| Nitzschia linearis var. genuina | Mayer | image |
| Nitzschia linearis var. major | Serbanescu & Serbanescu | image |
| Nitzschia linearis var. serpentina | Mayer | image |
| Nitzschia linearis var. subsigmoidea | Grunow | image |
| Nitzschia linearis var. suecica | Grunow | image |
| Nitzschia linearis var. tenuis | (W. Smith) Brun | image |
| Nitzschia linearis var. tenuis | (W. Smith) Grunow | image |
| Nitzschia linearis var. tenuis | (W. Smith) Grunow | image |
| Nitzschia linearis | W. Smith | image |
| Nitzschia lineata | Grunow | image |
| Nitzschia lineata | Hasle | image |
| Nitzschia lineola | Cleve | Ann. Rep. Fish. Board Scotland | 15{3}: 300, pl. VIII: fig. 10 | 1897 |
| Nitzschia linkei | Hustedt | image |
| Nitzschia lionella | Cholnoky | image |
| Nitzschia litoralis var. sinensis | Voigt | Musée Heude. Notes de Botanique Chinoise | 3: 95, pl. V: fig. 32 | 1942 |
| Nitzschia littoralis | Grunow | K. Svenska Vet. Akad. Handl. | [ser. 4], 17{2}: 75 | 1880 |
| Nitzschia littoralis var. australis | M. Peragallo | image |
| Nitzschia littoralis var. bengalensis | Grunow | image |
| Nitzschia littoralis var. delawarensis | Grunow | image |
| Nitzschia littoralis var. samoensis | Grunow | image |
| Nitzschia littoralis var. slesvicensis | Grunow | image |
| Nitzschia littoralis var. tergestina | Grunow | image |
| Nitzschia littorea | Grunow | image |
| Nitzschia littorea var. parva | Grunow | image |
| Nitzschia loczyi | Pantocsek | image |
| Nitzschia loczyi | Pantocsek | image |
| Nitzschia longa | Grunow | image |
| Nitzschia longicollum f. delicatula | Hasle | image |
| Nitzschia longicollum | Hasle | image |
| Nitzschia longirostris | Hustedt | image |
| Nitzschia longissima | (Brebisson) Grunow | image |
| Nitzschia longissima f. costata | Hustedt | image |
| Nitzschia longissima f. parva | Grunow in Van Heurck | Syn. Diat. Belgique: | pl. LXX: fig. 3 | 1881 |
| Nitzschia longissima var. chinensis | Grunow | image |
| Nitzschia longissima var. chinensis | Grunow | image |
| Nitzschia longissima var. cylindrica | Manguin | image |
| Nitzschia longissima var. fasciculata | Meunier | image |
| Nitzschia longissima var. fossilis | Brun | image |
| Nitzschia longissima var. reversa | Grunow | image |
| Nitzschia longissima var. undulata | Grunow | image |
| Nitzschia lorenziana | Grunow | image |
| Nitzschia lorenziana var. bartholomei | Grunow | image |
| Nitzschia lorenziana var. incerta | Grunow | image |
| Nitzschia lorenziana var. incurva | Grunow | image |
| Nitzschia lorenziana var. major | Grunow | image |
| Nitzschia lorenziana var. muscicola | G. Moser, H. Lange-Bertalot & D. Metzeltin | Insel der Endemiten: Geobotanisches Phänomen Neukaledonien (Bibliotheca Diatomologica 38): | 211, pl. 59: figs. 1, 2 | 1998 |
| Nitzschia lorenziana var. subrecta | Kogan | image |
| Nitzschia lorenziana var. subtilis | Grunow | image |
| Nitzschia lowei | S.E. Hamsher, J.P. Kociolek, S.A. Spaulding, & A.I. Saleh | Fottea | 21: 249, figs. 11-16 | 2021 |
| Nitzschia lubrica | (Kützing) Migula | Krypt.-Fl. Deutschl., Alg. | 1: 338 | 1906 |
| Nitzschia lucida | Meister | image |
| Nitzschia lucisensibilis | B.E. Volcani & C.-W. Li in Li & Volcani, | Brit. Phycol. J. | 22: 376, figs. 1-6 | 1988 |
| Nitzschia lurida | Cholnoky | image |
| Nitzschia luzonensis f. brevior | E. Manguin ex Kociolek & Reviers | Cryptogamie: Algologie | 17: 212 | 1996 |
| Nitzschia luzonensis f. brevior | E. Manguin | Mém. Mus. Natl. Hist. Nat. [Paris], Sér. B, Bot. | 12: 32, pl. VI: fig. 6 | 1962 |
| Nitzschia luzonensis f. brevior | Manguin | image |
| Nitzschia luzonensis | Hustedt | image |
| Nitzschia macaronesica | Lange-Bertalot | Biblioth. Diatomol. | 27: 148, pl. 112: figs. 6-10; pl. 113: fig. 6 | 1993 |
| Nitzschia macedonica | Hustedt | image |
| Nitzschia machardyae | H. Lange-Bertalot & U. Rumrich in U. Rumrich, H. Lange-Bertalot, & M. Rumrich | Iconogr. Diatomol. | 9: 184, pl. 155: figs. 1-3 | 2000 |
| Nitzschia macilenta | Gregory | image |
| Nitzschia maeotica | Pantocsek | image |
| Nitzschia magnacarina | Hohn & Hellerman | image |
| Nitzschia magnacarina | M.H. Hohn & J. Hellerman | Trans. Amer. Microscop. Soc. | 85: 128, pl. II: fig. 13 | 1966 |
| Nitzschia magnopunctata | V.S. Poretzky in Proshkina-Lavrenko & Sheshukova (eds.) | Diatomovyi Sbornik: | 101, fig. 12 | 1953 |
| Nitzschia maharashtrensis | Sarode & Kamat | image |
| Nitzschia mahihaensis | Foged | image |
| Nitzschia maiae | C.S. Lobban, M. Ashworth, J.J.M. Calaor, & E.C. Theriot | Phytotaxa | 401: 208, figs. 13, 26-34 | 2019 |
| Nitzschia maillardii | Coste & Ricard | image |
| Nitzschia majuscula | Grunow | image |
| Nitzschia majuscula var. curvirostris | Frenguelli | image |
| Nitzschia majuscula var. lineata | S.-C. Liu & T.G. Chin | Universitatis Amoiensis, Acta Scientiarum Naturalium | 19(2): 112, fig. F | 1980 |
| Nitzschia makarovae | Mikhailov | image |
| Nitzschia maleinterpretaria | Schrader | image |
| Nitzschia mamataensis | Foged | image |
| Nitzschia mammalis | Castracane | image |
| Nitzschia manca | Hustedt | image |
| Nitzschia mancoides | H.P. Gandhi ex Karthick in Guiry et al. | Notulae algarum | 133: 6, description and illustration in Gandhi (1998: 212, pl. VII: fig. 266) | 2020 |
| Nitzschia mancoides | H.P. Gandhi | Fresh-water Diatoms Central Gujarat: | 212, pl. VII: fig. 266 | 1998 |
| Nitzschia mangonicata | F.R. Schoeman in Schoeman & Meaton | CSIR Special Report WAT | 64: 34 | 1982 |
| Nitzschia manguinii | Cholnoky | image |
| Nitzschia manguinii | Cholnoky | Bot. Mar. | 11 (suppl.): 75, fig. 142 | 1968 |
| Nitzschia manguinii_('manguini') | Maillard | image |
| Nitzschia mankesimensis | Foged | image |
| Nitzschia marginata | Hustedt | image |
| Nitzschia marginulata f. elongata | Hustedt ex Simonsen | Atlas and catalogue of the diatom types of Friedrich Hustedt: | 57, fig. 72/4-5 | 1987 |
| Nitzschia marginulata f. elongata | Hustedt | A. Schmidt's Atlas Diatom.-Kunde: | fig. 331: 1 | 1921 |
| Nitzschia marginulata f. minuta | Grunow | K. Svenska Vetensk.-Akad. Handl., ser. 4, | 17{2}: 72 | 1880 |
| Nitzschia marginulata f. parva | Grunow in Van Heurck | Syn. Diat. Belg.: | pl. LVIII: fig. 15 | 1881 |
| Nitzschia marginulata | Grunow | K. Svenska Vet. Akad. Handl. | [ser. 4], 17{2}: 72, pl. V: fig. 93 | 1880 |
| Nitzschia marginulata var. formicina | Grunow | image |
| Nitzschia marginulata var. subconstricta | Grunow | K. Svenska Vetensk.-Akad. Handl., ser. 4, | 17{2}: 72 | 1880 |
| Nitzschia marina | Grunow | K. Svenska Vet.-Akad. Handl., ser. 4, | 17{2}: 70 | 1880 |
| Nitzschia marina | Grunow | image |
| Nitzschia martiana | (C. Agardh) Schütt | image |
| Nitzschia martinii | Krasske | image |
| Nitzschia maxima | Grunow in Van Heurck | Syn. Diat. Belg.: | pl. LXV: figs. 1, 2 | 1881 |
| Nitzschia media | Hantzsch in Rabenhorst | Alg. Sachs. Dec. | 95/96: no. 945 | 1860 |
| Nitzschia mediastalsis | Hohn & Hellerman | image |
| Nitzschia mediocris | Hustedt | image |
| Nitzschia medioincrassata | Vyverman | image |
| Nitzschia mediterranea | Hustedt | A. Schmidt's Atlas Diat.: | pl. 331: fig. 22 | 1921 |
| Nitzschia meisteri | Pantocsek | image |
| Nitzschia meropeae | C.S. Lobban, M.P. Ashworth, J.J.M. Calaor, & E.C. Theriot | Phytotaxa | 401: 217, figs. 16, 19, 69-74 | 2019 |
| Nitzschia mesiana | Cholnoky | image |
| Nitzschia mesolepta | Bailey | image |
| Nitzschia metzeltinii | H. Lange-Bertalot apud H. Lange-Bertalot & S.I. Genkal in H. Lange-Bertalot (ed.) | Iconographia Diatomologica | 6: 78, pl. 72: figs. 1-7 | 1999 |
| Nitzschia michiganiana | J.P. Kociolek, R.L. Lowe, K. Sánchez, & J.G. Stepanek | The Great Lakes Botanist | 60: 47, figs. 80-94 | 2021 |
| Nitzschia microcephala | Grunow | image |
| Nitzschia microcephala var. elegantula | (Grunow) Van Heurck | image |
| Nitzschia microcephala var. medio-constricta | Fritsch & Rich | image |
| Nitzschia microcephala var. robusta | Skvortzov | image |
| Nitzschia minima | Meister | image |
| Nitzschia minuscula | Frenguelli | image |
| Nitzschia minuta | Bleisch | image |
| Nitzschia minuta | Bleisch | image |
| Nitzschia minuta | Bleisch | image |
| Nitzschia minuta | Meister | image |
| Nitzschia minutissima | W. Smith | image |
| Nitzschia minutula | (Grunow) Grunow | image |
| Nitzschia minutula | Grunow | image |
| Nitzschia miocenica | Burckle | image |
| Nitzschia miramarensis | Hagelstein | N.Y. Acad. Sci., Sci. Surv. Porto Rico & Virgin Is. | 8: 398, pl. 8: figs. 4, 5 | 1939 |
| Nitzschia miramaris | Frenguelli | image |
| Nitzschia miranda | Giffen | image |
| Nitzschia miserabilis | Cholnoky | image |
| Nitzschia mitchelliana | Greenleaf | image |
| Nitzschia mitchelliana var. australis | M. Peragallo | image |
| Nitzschia modesta | Hustedt ex Brendemuhl | image |
| Nitzschia moholensis | Schrader | image |
| Nitzschia moissacensis | (Héribaud) Meister | Arch. Hydrobiol. | 9: 229 | 1914 |
| Nitzschia moissacensis var. heidenii | Meister | image |
| Nitzschia molesta | Manguin | image |
| Nitzschia mollis | Hustedt | Ber. Deutsch. Bot. Ges. | 64: 312, fig. 22 | 1952 |
| Nitzschia mollis var. africana | Cholnoky | image |
| Nitzschia monachorum | Lange-Bertalot | image |
| Nitzschia mongolica | Skvortzov | Publ. Mus. Hoangho Paiho Tien Tsin | 36: 35, pl. 8: fig. 33 | 1935 |
| Nitzschia monguillonii_('monguilloni') | Manguin | image |
| Nitzschia monoensis | J.P. Kociolek & D.B. Herbst | Transactions of the American Microscopical Society | 111: 352, figs. 41-51, figs. 42, 43 | 1992 |
| Nitzschia montanestris | Camburn | image |
| Nitzschia morosa | Cholnoky | image |
| Nitzschia mucronata | Pantocsek | image |
| Nitzschia mucronata Østrup | | image |
| Nitzschia multistriata | H. Takano | Diatom | 8: 39, figs. A-E | 1993 |
| Nitzschia muranensis | Cholnoky | image |
| Nitzschia mutica var. goeppertiana | A.M. Edwards | image |
| Nitzschia mytilicola | Giffen | image |
| Nitzschia nagbogensis | Foged | image |
| Nitzschia nagpurensis | Sarode & Kamat | image |
| Nitzschia nana | Grunow | image |
| Nitzschia nanodissipata | Chunlian Li & A. Witkowski in Witkowski et al. | J. Coastal Res. | 74(special issue): 188, figs. 3d, 12a-d | 2016 |
| Nitzschia natalensis | Cholnoky | image |
| Nitzschia natans | H. Lange-Bertalot apud K. Krammer & H. Lange-Bertalot in H. Ettl et al. (eds.) | Süsswasserfl. Mitteleuropa | 2{2}, ed. 2: 594 | 1997 |
| Nitzschia nathorstii_('nathorsti') | J. Brun | image |
| Nitzschia navia | Carter | image |
| Nitzschia naviculaeformis | Hustedt | image |
| Nitzschia navicularis | (Brebisson) Grunow | image |
| Nitzschia navicularis var. pearlensis | Qi, Lin & Zhang | image |
| Nitzschia navicularis var. pearlensis | Qi, Lin, & Zhang in Qi, Lin, Zhang, & He | Proc. Eighth Int. Diat. Symp. [Paris, 1984]: | 585, fig. 6. | 1986 |
| Nitzschia navis-varingica | N. Lundholm & Ø. Moestrup | J. Phycol. | 36: 1163, figs. 1-7 | 2000 |
| Nitzschia navrongensis | Foged | image |
| Nitzschia neglecta | Hustedt | Deutsche Antarkt. Exped. 1938/1939, Wiss. Ergebn. | 2: 175, figs. 162-164 | 1958 |
| Nitzschia nelsonii_('nelsoni') | Hanna & Grant | image |
| Nitzschia neocaledonica | E. Manguin ex Kociolek & Reviers | Cryptogamie: Algologie | 17: 213 | 1996 |
| Nitzschia neocaledonica | E. Manguin | Mém. Mus. Natl. Hist. Nat. [Paris], Sér. B, Bot. | 12: 32, pl. VI: fig. 7 | 1962 |
| Nitzschia neocaledonica | Manguin | image |
| Nitzschia neoconstricta | Desikachary & Gowthaman | image |
| Nitzschia neoconstricta | T.V. Desikachary, S. Gowthaman, & Y. Latha in T.V. Desikachary | Atlas Diat. | 2: 7 | 1987 |
| Nitzschia neogena | Grunow | image |
| Nitzschia neotropica | H. Lange-Bertalot & U. Rumrich in U. Rumrich, H. Lange-Bertalot, & M. Rumrich | Iconogr. Diatomol. | 9: 185, pl. 167: figs. 4-8 | 2000 |
| Nitzschia nereidis | Cholnoky | image |
| Nitzschia ngoziensis | Otto Müller | image |
| Nitzschia nicobarica | (Grunow) Grunow | image |
| Nitzschia nicobarica | Grunow | image |
| Nitzschia nicobarica var. alata | (Leuduger-Fortmorel) Amosse | image |
| Nitzschia nienhuisii | F.A.S. Sterrenburg & F.J.G. Sterrenburg | Bot. Mar. | 33: 464, figs. 2-4 | 1990 |
| Nitzschia nikitiniana | Skvortzov | image |
| Nitzschia nikitiniana var. robusta | Skvortzov | image |
| Nitzschia nobilis | A.M. Edwards | image |
| Nitzschia nodulosa | A.M. Edwards | image |
| Nitzschia nollothae | Giffen | image |
| Nitzschia norvegica | Hasle | image |
| Nitzschia notabilis | (Grunow) Grunow in Van Heurck | Syn. Diat. Belg.: | pl. LXI: fig. 5 | 1881 |
| Nitzschia notata | (Kützing) Rabenhorst | image |
| Nitzschia nova-zealandia | Inglis | image |
| Nitzschia novae-zelandia | Inglis | image |
| Nitzschia novaeguineae | Cholnoky | image |
| Nitzschia novaehollandiae_('novae hollandiae') | Grunow | image |
| Nitzschia nunguaensis | Foged | image |
| Nitzschia nuwukiana | Patrick & Freese | image |
| Nitzschia nyassensis | Otto Müller | image |
| Nitzschia oamaruensis | Schrader | image |
| Nitzschia oberheimiana | H. Lange-Bertalot & U. Rumrich in U. Rumrich, H. Lange-Bertalot, & M. Rumrich | Iconogr. Diatomol. | 9: 186, pl. 168: figs. 1-17 | 2000 |
| Nitzschia obesa | Castracane | image |
| Nitzschia obligata | Archibald | image |
| Nitzschia obliquecostata | (Van Heurck) Hasle | image |
| Nitzschia oblonga | L.W. Bailey | image |
| Nitzschia oblonga | Mikhailov | image |
| Nitzschia oblongella Østrup | | image |
| Nitzschia obscura | Grunow | image |
| Nitzschia obscurepunctata | Hustedt | Deutsche Antarkt. Exped. 1938/1939, Wiss. Ergebn. | 2: 176, fig. 171 | 1958 |
| Nitzschia obsidialis | Hustedt | image |
| Nitzschia obsoleta | Hustedt | image |
| Nitzschia obsoletiformis | Cholnoky | image |
| Nitzschia obtusa f. nipponica | Negoro | image |
| Nitzschia obtusa f. parva | Hustedt | image |
| Nitzschia obtusa var. arcuata | Rabenhorst | image |
| Nitzschia obtusa var. brevissima | Van Heurck | image |
| Nitzschia obtusa var. constricta | Gandhi | image |
| Nitzschia obtusa var. fossilis | Pantocsek | image |
| Nitzschia obtusa var. gracilissima | Manguin | image |
| Nitzschia obtusa var. gracillima | Manguin | image |
| Nitzschia obtusa var. indica | Sarode & Kamat | image |
| Nitzschia obtusa var. kryophila | Cleve | image |
| Nitzschia obtusa var. lata | Hagelstein | N.Y. Acad. Sci., Sci. Surv. Porto Rico & Virgin Is. | 8: 399, pl. 8: figs. 6, 7 | 1939 |
| Nitzschia obtusa var. lepidula | Grunow | image |
| Nitzschia obtusa var. maxima | Grunow | image |
| Nitzschia obtusa var. multistriata | Hohn | image |
| Nitzschia obtusa var. nana | Grunow | image |
| Nitzschia obtusa var. recta | Berg | image |
| Nitzschia obtusa var. scalpelliformis | (Grunow) Grunow | image |
| Nitzschia obtusa var. schweinfurthii | (Grunow) Grunow | image |
| Nitzschia obtusa var. sigmoidea Østrup | | image |
| Nitzschia obtusa var. sodalis | Frenguelli | Rev. Mus. La Plata | 34: 366, pl. III: fig. 3 | 1934 |
| Nitzschia obtusa var. undulata | Hagelstein | N.Y. Acad. Sci., Sci. Surv. Porto Rico & Virgin Is. | 8: 399, pl. 8: figs. 8, 9 | 1939 |
| Nitzschia obtusa var. vulgaris | Grunow | image |
| Nitzschia obtusa | W. Smith | image |
| Nitzschia obtusangula | Hustedt | image |
| Nitzschia obtusata | W. Smith | image |
| Nitzschia oceanica | Hasle | image |
| Nitzschia oceanica | Karsten | image |
| Nitzschia ocellata | Cleve | image |
| Nitzschia ocellata | Cleve | image |
| Nitzschia oestrupii | Pantocsek | image |
| Nitzschia ofinensis | Foged | image |
| Nitzschia ogivalis | Kufferath | image |
| Nitzschia okamurae | Skvortzov | image |
| Nitzschia okamurae | Skvortzov | image |
| Nitzschia oliffii | Cholnoky | image |
| Nitzschia oligotraphenta | (H. Lange-Bertalot) H. Lange-Bertalot in Hofmann, Werum, & Lange-Bertalot | Diatomeen im Süsswasser-Benthos von Mitteleuropa: | 453, pl. 109: 3-7 | 2011 |
| Nitzschia omanensis | I. Barkia & Chunlian Li in Barkia et al. | Fottea | 19: 177, figs. 1-13 | 2019 |
| Nitzschia oregona | H.E. Sovereign | Trans. Amer. Microscop. Soc. | 79: 345 | 1960 |
| Nitzschia oregona_('oregana') | H.E. Sovereign | Trans. Amer. Microscop. Soc. | 77: 130, pl. IV: figs. 63-68 | 1958 |
| Nitzschia oregona_('oregana') | Sovereign | image |
| Nitzschia oscilla | Carter | image |
| Nitzschia osmophila | Cholnoky | image |
| Nitzschia ossiformis | (Taylor) Simonsen | image |
| Nitzschia ostenfeldii | Van Heurck | image |
| Nitzschia ostenfeldii var. minor | Van Heurck | image |
| Nitzschia ostenfeldii_('ostenfeldi') | Hustedt | image |
| Nitzschia ostii | Konig | image |
| Nitzschia ovalis | Arnott | image |
| Nitzschia ovalis var. antarctica | M. Peragallo | image |
| Nitzschia ovalis var. major Østrup | | image |
| Nitzschia oxyrhynchus | Frenguelli | image |
| Nitzschia paaschei | Hasle | image |
| Nitzschia paaschei | Hasle | image |
| Nitzschia pacifica | Cupp | image |
| Nitzschia paeneperpetua | D.G. Mann | Israel Journal of Plant Sciences | 30: 2, figs. 1-6 | 1981 |
| Nitzschia palea | (Kützing) W. Smith | image |
| Nitzschia palea f. dissipata | (Kützing) Rabenhorst | image |
| Nitzschia palea f. dubia | Manguin | image |
| Nitzschia palea f. famelica | (Kützing) Rabenhorst | image |
| Nitzschia palea f. major | Rabenhorst | image |
| Nitzschia palea f. minor | Compère | image |
| Nitzschia palea f. mucicola | Teiling | image |
| Nitzschia palea f. sparsipunctata | Manguin | image |
| Nitzschia palea var. baikalensis | Skvortzov | image |
| Nitzschia palea var. barodensis | H.P. Gandhi ex Karthick in Guiry et al. | Notulae algarum | 133: 6, description and illustration in Gandhi (1998: 213, pl. VII: fig. 268) | 2020 |
| Nitzschia palea var. barodensis | H.P. Gandhi | Fresh-water Diatoms Central Gujarat: | 213, pl. VII: fig. 268 | 1998 |
| Nitzschia palea var. capitata | Wislouch & Poretzky in Poretzky | Trudy Leningradskago Obschchestva Estestvoispytatelei | 53(3): 148, fig. 10 | 1924 |
| Nitzschia palea var. debilis | (Kützing) Grunow | image |
| Nitzschia palea var. fonticola | Grunow | image |
| Nitzschia palea var. genuina | Kirchner | image |
| Nitzschia palea var. gracilis | Skvortzov | image |
| Nitzschia palea var. hinganica | Skvortzov | image |
| Nitzschia palea var. hustedtiana | Compère | image |
| Nitzschia palea var. magna | Skvortzov | image |
| Nitzschia palea var. perminuta | Grunow | image |
| Nitzschia palea var. romana | Grunow | image |
| Nitzschia palea var. sumatrana | Hustedt | image |
| Nitzschia palea var. tenuirostris | Grunow in Van Heurck | Syn. Diat. Belg.: | pl. LXIX: fig. 31 | 1881 |
| Nitzschia palea var. tropica | Grunow | image |
| Nitzschia palea var. tropica | Hustedt | image |
| Nitzschia paleacea | Grunow | image |
| Nitzschia paleacea var. baikalensis | Skvortzov | image |
| Nitzschia paleacea var. ebroicensis | Maillard | image |
| Nitzschia paleaeformis | Hustedt | image |
| Nitzschia paleoides | Hustedt | image |
| Nitzschia palmida | Carter | image |
| Nitzschia palustris | Hustedt | image |
| Nitzschia pamirensis | Hustedt | image |
| Nitzschia panduriformis f. acuta | H. Peragallo in Peragallo & Peragallo | Denkschr. K. Akad. Wiss. [Wien], Math.-Nat. Kl. | 88: 5 | 1911 |
| Nitzschia panduriformis f. acuta | Tempère & Peragallo | image |
| Nitzschia panduriformis | Gregory | Trans. Roy. Soc. Edinburgh | 21: 529, pl. XIV: fig. 102 | 1857 |
| Nitzschia panduriformis var. abrupta | H. Peragallo & M. Peragallo | Diatomées Marines de France: | pl. LXX: fig. 7 (desc. on p. 269, 1901) | 1899 |
| Nitzschia panduriformis var. apiculata | H. Peragallo in Peragallo & Peragallo | Denkschr. K. Akad. Wiss. [Wien], Math.-Nat. Kl. | 88: 5 | 1911 |
| Nitzschia panduriformis var. australis | Manguin | image |
| Nitzschia panduriformis var. continua | Grunow | K. Svenska Vet.-Akad. Handl., ser. 4, | 17{2}: 71, no fig. | 1880 |
| Nitzschia panduriformis var. delicatula | Grunow | K. Svenska Vetensk.-Akad. Handl., ser. 4, | 17{2}: 71, pl. V: fig. 92 | 1880 |
| Nitzschia panduriformis var. interrupta Østrup | | image |
| Nitzschia panduriformis var. lata | (O. Witt) Grunow | image |
| Nitzschia panduriformis var. lata | (Witt) Grunow | image |
| Nitzschia panduriformis var. loczyi | Pantocsek | image |
| Nitzschia panduriformis var. lucida | Brun & Heribaud | image |
| Nitzschia panduriformis var. minor | Grunow | image |
| Nitzschia panduriformis var. nicobarica | Grunow | Alg. Novara: | 97, pl. IA: fig. 4 | 1867 |
| Nitzschia panduriformis var. parva | Frenguelli | image |
| Nitzschia panduriformis var. peralbata | H. Peragallo & M. Peragallo | Diatomées Marines de France: | pl. LXX: fig. 2 (desc. on p. 269, 1901) | 1899 |
| Nitzschia panduriformis var. pustulata | Voigt ex Meister | Ber. Bot. Schweiz. Bot. Ges. | 47: 270, pl. 11: fig. 9 | 1937 |
| Nitzschia pantocsekii_('pantocseki') | Hajós | image |
| Nitzschia papillosa | L.M. Bertolli, D.M. Talgatti & L.C. Torgan | Phytotaxa | 247: 77, figs. 2-40 | 2016 |
| Nitzschia paradoxa | Grunow | Kongl. Svenska Vetensk.-Akad. Handl., ser. 4, | 17{2}: 85 | 1880 |
| Nitzschia paradoxa var. pacifica | Grunow | image |
| Nitzschia paradoxa var. paucistriata | Frenguelli | image |
| Nitzschia paradoxa var. perpusilla | Playfair | image |
| Nitzschia paradoxa var. tropica | (Grunow) Grunow | image |
| Nitzschia paradoxa var. tumidula | Grunow | Kongl. Svenska Vet. Akad. Handl. ser. 4 | 17{2}: 86, no. fig. | 1880 |
| Nitzschia parallela | Hustedt | image |
| Nitzschia pararostrata | (H. Lange-Bertalot) Lange-Bertalot apud Tsarenko, Lange-Bertalot, Stupina, & Wasser in Nevo & Wasser | Bacillariophyta: | 320 | 2000 |
| Nitzschia parkii | D.G. Mann & R. Trobajo | Eur. J. Phycol. | 49: 293, figs. 9, 15-17, 25, 31, 40, 41 | 2014 |
| Nitzschia partita | Hustedt | Ber. Deutsch. Bot. Ges. | 64: 311, fig. 14 | 1952 |
| Nitzschia parva | Mielck | image |
| Nitzschia parvula f. curvula | Rabenhorst | image |
| Nitzschia parvula | Lewis | image |
| Nitzschia parvula var. terricola | Lund | image |
| Nitzschia parvula | W. Smith | Syn. Brit. Diat. | 1: 41, pl. XIII: fig. 106 | 1853 |
| Nitzschia parvuloides | Cholnoky | image |
| Nitzschia parvuloides f. curta | Cholnoky | image |
| Nitzschia paxillifer | (O. F. Müller) Heiberg | image |
| Nitzschia paxillifera_(`paxillifer') | (O.F. Müller) Heiberg | Consp. Diat. Dan.: | 113 | 1863 |
| Nitzschia pecten | Brun | image |
| Nitzschia peisonis | Pantocsek | image |
| Nitzschia peisonis | Pantocsek | image |
| Nitzschia peisonis var. torquata | Pantocsek | image |
| Nitzschia pekinensis | Skvortzov | image |
| Nitzschia pelagica | Karsten | image |
| Nitzschia pelagica | Otto Müller | image |
| Nitzschia pellucida | Grunow | image |
| Nitzschia pellucida var. minor | Cleve-Euler | image |
| Nitzschia pennata | Tempère & Brun | image |
| Nitzschia peragalloi_('peragallii') | G.R. Hasle | Skr. Norske Vidensk.-Akad. Oslo, Mat.-Naturvidensk. Kl., ser. 2, | 21: 41 | 1965 |
| Nitzschia peragalloi_('peragallii') | Hasle | image |
| Nitzschia percuriosa | Giffen | image |
| Nitzschia perindistincta | Cholnoky | image |
| Nitzschia perlonga | Pantocsek | image |
| Nitzschia perminuta | Grunow in Van Heurck | Syn. Diat. Belg.: | pl. LXIX: figs. 4, 7 | 1881 |
| Nitzschia perpusilla | Grunow | image |
| Nitzschia perpusilla | Grunow | Verh. K. Zool.-Bot. Ges. Wien | 12: 575, pl. 12: fig. 17 | 1862 |
| Nitzschia perpusilla | Rabenhorst | image |
| Nitzschia perpusilla | Rabenhorst | image |
| Nitzschia perpusilla | Rabenhorst | image |
| Nitzschia perpusilla var. groenlandica | Grunow ex Cleve & Möller | image |
| Nitzschia perspicillata | Camburn | image |
| Nitzschia perspicua | Cholnoky | image |
| Nitzschia perspicua | Sovereign | image |
| Nitzschia persuadens | Cholnoky | Hydrobiologia | 174: 319, fig. 74 | 1961 |
| Nitzschia pertica | Hohn & Hellerman | image |
| Nitzschia peruviana | Manguin | image |
| Nitzschia perversa | Grunow | K. Svenska Vet. Akad. Handl. | [ser. 4], 17{2}: 70 | 1880 |
| Nitzschia petitiana | Grunow | K. Svenska Vet.-Akad. Handl., ser. 4, | 17{2}: 104 | 1880 |
| Nitzschia petulla | Carter | image |
| Nitzschia philippina | Skvortzov | image |
| Nitzschia philippinarum | Hustedt | image |
| Nitzschia pilum | Hustedt | image |
| Nitzschia pinguescens | Cholnoky | image |
| Nitzschia pisca | Patrick & Freese | image |
| Nitzschia piscinarum | Hustedt | image |
| Nitzschia pistilla | Carter | image |
| Nitzschia placentula "C.G.E." | | image |
| Nitzschia plana f. minuta | Grunow | image |
| Nitzschia plana f. ornata | Kolbe | image |
| Nitzschia plana var. abludens | Grunow | image |
| Nitzschia plana var. americana | Hustedt | image |
| Nitzschia plana var. fennica | Hustedt | image |
| Nitzschia plana var. zebuana | Castracane | image |
| Nitzschia plana | W. Smith | Syn. Brit. Diat. | I: 42, pl. XV: fig. 114 | 1853 |
| Nitzschia planctonica | Hustedt | image |
| Nitzschia plicatula | Hustedt | Arch. Hydrobiol. | 48: 151, figs. 1, 2 | 1953 |
| Nitzschia pliocena | (Brun) Mertz | image |
| Nitzschia pliocena f. varilobata | Mertz | image |
| Nitzschia pliocena var. horribilis | Mertz | image |
| Nitzschia pliocena var. peruviana | Mertz | image |
| Nitzschia plioveterana | H. Lange-Bertalot in A. Witkowski, H. Lange-Bertalot & D. Metzeltin | Icon. Diatomol. | 7: 401 | 2000 |
| Nitzschia polaris | Grunow | image |
| Nitzschia polaris | Grunow | image |
| Nitzschia polaris | Grunow | image |
| Nitzschia polaris var. antarctica | M. Peragallo | image |
| Nitzschia polymorpha | T. Marsson | Zeitschrift für angewandte Mikroskopie und klinische Chemie | 6: 209 | 1900 |
| Nitzschia ponciensis | Hagelstein | image |
| Nitzschia ponciensis | R. Hagelstein | N.Y. Acad. Sci., Sci. Surv. Porto Rico & Virgin Is. | 8: 401, pl. 8: fig. 13 | 1939 |
| Nitzschia poretzkyi | Skvortzov | image |
| Nitzschia poretzkyi var. latior | Skvortzov | image |
| Nitzschia porteri | Frenguelli | image |
| Nitzschia potapovae | S.E. Hamsher, J.P. Kociolek, S.A. Spaulding, & A.I. Saleh | Fottea | 21: 250, figs. 17-26 | 2021 |
| Nitzschia praecurta | Gersonde | image |
| Nitzschia praecurta | R. Gersonde | Polarforschung | 59: figs. 8, 9; pl. 1: figs. 7-17; pl. 2: figs. 5, 6; pl. 3: figs. 3, 4; pl. 10: fig. 7 | 1991 |
| Nitzschia praefossilis | H.J. Schrader | Initial Rep. Deep Sea Drilling Project | 18: 708, pl. 5: figs. 19, 21, 22 | 1973 |
| Nitzschia praefossilis | Schrader | image |
| Nitzschia praeinterfrigidaria | McCollum | image |
| Nitzschia praelonga | Cleve | image |
| Nitzschia praelonga var. sigmoidea | Cleve-Euler | image |
| Nitzschia praemarina | Jousé | image |
| Nitzschia praereinholdii | H.J. Schrader | Initial Rep. Deep Sea Drilling Project | 18: 708, pl. 5: figs. 20, 23-26 | 1973 |
| Nitzschia praereinholdii | Schrader | image |
| Nitzschia pretoriensis | Cholnoky | image |
| Nitzschia princeps | Hanna & Grant | Proc. Calif. Acad. Sci., | ser. 4, 15: 159, pl. 21: fig. 8 | 1926 |
| Nitzschia procera | Hustedt | image |
| Nitzschia proceroides | Giffen | image |
| Nitzschia producta | Comber | image |
| Nitzschia producta | Gregory | image |
| Nitzschia profunda | Kufferath | Expl. Hydrobiol. Lac Tanganika (1946-1947), Rés. Sci. | 4{3}: 43, pl. IV | 1956 |
| Nitzschia prolongata | Hustedt | image |
| Nitzschia prolongata | Manguin | image |
| Nitzschia prolongata var. hoehnkii | (Hustedt) Lange-Bertalot | image |
| Nitzschia prolongatoides | G.R. Hasle | Skr. Norske Vid. Akad. Oslo, Mat.-Naturv. Kl., N.S. | 18: 25 | 1965 |
| Nitzschia prolongatoides | Hasle | image |
| Nitzschia propinqua | T. Marsson | Zeitschrift für angewandte Mikroskopie und klinische Chemie | 6: 206 | 1900 |
| Nitzschia proschkina-lavrenkoae_('proschkina-lavrenkoi') | Skvortzov | image |
| Nitzschia proshkina-lavrenkoae_('proshkina-lavrenki') | Aleem, inval. | image |
| Nitzschia protuberans | Brun | image |
| Nitzschia proxima | Hustedt | image |
| Nitzschia pseudepiphytica | Cocquyt & M. de Hann in C. Cocquyt et al. | Phycologia | 51: 130, figs. 35-56 | 2012 |
| Nitzschia pseudoaequalis | C. Cocquyt in Cocquyt & Ryken | Diatom Research | 32: 470, figs. 44-62 | 2017 |
| Nitzschia pseudoamphibia f. depressa | Manguin | image |
| Nitzschia pseudoamphibia f. depressa | Manguin | Mém. Mus. Natl. Hist. Nat. [Paris], N.S., B, | 12: 94, pl. XXIII: fig. 2 | 1964 |
| Nitzschia pseudoamphibia f. rostrata | V.S. Poretzky in Proshkina-Lavrenko & Sheshukova (eds.) | Diatomovyi Sbornik: | 85, fig. 8 | 1953 |
| Nitzschia pseudoamphibia | Manguin | image |
| Nitzschia pseudoamphibia | Manguin | Mém. Mus. Natl. Hist. Nat. [Paris], N.S., B, | 12: 94, pl. XXIII: fig. 1 | 1964 |
| Nitzschia pseudoamphibia | V.S. Poretzky in Proshkina-Lavrenko & Sheshukova (eds.) | Diatomovyi Sbornik: | 84, fig. 7 | 1953 |
| Nitzschia pseudoamphibia var. capitata | Manguin | image |
| Nitzschia pseudoamphibia var. capitata | Manguin | Mém. Mus. Natl. Hist. Nat. [Paris], N.S., B, | 12: 94, pl. XXIII: fig. 3 | 1964 |
| Nitzschia pseudoamphioxoides | Gandhi | image |
| Nitzschia pseudoamphioxys | Hustedt | image |
| Nitzschia pseudobacata | Cholnoky | image |
| Nitzschia pseudobacillum "A.G."=Grunow | | image |
| Nitzschia pseudocapitata | Desikachary & Gowthaman | image |
| Nitzschia pseudocapitata | T.V. Desikachary & S. Gowthaman in T.V. Desikachary | Atlas Diat. | 6: 15 | 1989 |
| Nitzschia pseudocarinata | Cholnoky | image |
| Nitzschia pseudocommunis | Hustedt | image |
| Nitzschia pseudocylindrica | H.J. Schrader in Schrader & Fenner | Initial Rep. Deep Sea Drilling Project | 38: 992, pl. 1: figs. 3-5, 12, 15-18 | 1976 |
| Nitzschia pseudocylindrica | Schrader | image |
| Nitzschia pseudodelicatissima | G.R. Hasle | image |
| Nitzschia pseudodelicatissima | G.R. Hasle | Brit. Phycol. J. | 11: 103, no fig. cited | 1976 |
| Nitzschia pseudofonticola | Hustedt | image |
| Nitzschia pseudofossilis | Gandhi | image |
| Nitzschia pseudogracilis | Gandhi | image |
| Nitzschia pseudohungarica | Hustedt | Arch. Hydrobiol. Suppl. | 16: 381 | 1939 |
| Nitzschia pseudohybrida | Hustedt | image |
| Nitzschia pseudokerguelensis | Schrader | image |
| Nitzschia pseudolinearis | Hustedt | image |
| Nitzschia pseudolinearis var. sinica | Skvortzov | image |
| Nitzschia pseudonana | (Hasle) Hasle | image |
| Nitzschia pseudonana | G.R. Hasle | Taxon | 23: 427 | 1974 |
| Nitzschia pseudopectinalis | Kufferath | image |
| Nitzschia pseudoseriata | G.R. Hasle | Skr. Norske Vid. Akad. Oslo, Mat.-Naturv. Kl., N.S. | 18: 11 | 1965 |
| Nitzschia pseudoseriata | Hasle | image |
| Nitzschia pseudosigma | Hustedt | image |
| Nitzschia pseudosinuata | P.B. Hamilton & K.R. Laird | Diatom Research | 16: 318, figs. 1-12 | 2001 |
| Nitzschia pseudostagnorum | Hustedt | image |
| Nitzschia pseudosubrostrata | Kufferath | Expl. Hydrobiol. Lac Tanganika (1946-1947), Rés. Sci. | 4{3}: 44, pl. V: figs. 6, 7 | 1956 |
| Nitzschia pubens | Cholnoky | image |
| Nitzschia pulchella | H. Peragallo & M. Peragallo | Diatomées Marines de France: | pl. LXXII: fig. 21 (desc. on p. 282, 1901) | 1899 |
| Nitzschia pulcherrima var. antediluviana | Pantocsek | image |
| Nitzschia pulcherrima var. interrupta | Pantocsek | image |
| Nitzschia pulchra | Hustedt | image |
| Nitzschia pulchra | Hustedt | image |
| Nitzschia pulchriora | Giffen | image |
| Nitzschia pumila | Hustedt | image |
| Nitzschia punae | Frenguelli | Rev. Mus. La Plata, n.s. 1. Secc. Paleontología | 1: 25, 33, pl. II: fig. 19 | 1936 |
| Nitzschia punae var. major | Frenguelli | Rev. Mus. La Plata, n.s. 1. Secc. Paleontología | 1: 26, 33, pl. II: fig. 20 | 1936 |
| Nitzschia punctata | (W. Smith) Grunow | image |
| Nitzschia punctata f. minor | Schulz | image |
| Nitzschia punctata | L.W. Bailey | image |
| Nitzschia punctata var. coarctata | Grunow | image |
| Nitzschia punctata var. elongata | Grunow | image |
| Nitzschia punctata var. malayana | Prowse | image |
| Nitzschia punctata var. obtusa | Abdul-Majeed | image |
| Nitzschia punctata var. rostrata | Krasske | image |
| Nitzschia pungens f. multiseries | G.R. Hasle | Taxon | 23: 427 | 1974 |
| Nitzschia pungens f. multiseries | G.R. Hasle | Skr. Norske Vid. Akad. Oslo, Mat.-Naturv. Kl., N.S. | 18: 14, pl. 2: figs. 1, 2; pl. 5: figs. 10-12; pl. 6: fig. 4; pl. 7: figs. 9-11 | 1965 |
| Nitzschia pungens f. multiseries | Hasle | image |
| Nitzschia pungens | Grunow in Cleve & Möller | Diatoms: | 6: 3, no. 307 | 1882 |
| Nitzschia pungens var. atlantica | Cleve | image |
| Nitzschia pungiformis | G.R. Hasle | Norweg. J. Bot. | 18: 143, figs. 1-11 | 1971 |
| Nitzschia pungiformis | Hasle | image |
| Nitzschia pura | Hustedt | image |
| Nitzschia puriformis | D. Hlúbiková & L. Ector in D. Hlúbiková et al. | J. Phycol. | 45: 750, figs. 5a-y; 6r-hh; 7g,h; 8e,f; 9g,h; 10g,h | 2009 |
| Nitzschia pusilla | (Kützing) Grunow emend Lange-Bertalot | image |
| Nitzschia pusilla | Grunow | image |
| Nitzschia pusilla | Schrader | image |
| Nitzschia pusilla var. monoensis | J.R. Johansen, W.R. Barclay, & W.H. Thomas | J. Phycol. | 24(suppl.): 11 | 1988 |
| Nitzschia pusilluhasta | E.A. Lehmkuhl & C. Bicudo in Lehmkuhl et al. | Phytotaxa | 399: 86, figs. 2-21, 53-58 | 2019 |
| Nitzschia pustulata | Meister | image |
| Nitzschia putrida | (Cohn) Benecke | image |
| Nitzschia quadrangula | (Kützing) Lange-Bertalot | image |
| Nitzschia quarnerensis | Grunow | image |
| Nitzschia quarnerensis var. sigmoidea | Grunow | image |
| Nitzschia quickiana | Hagelstein | N.Y. Acad. Sci., Sci. Surv. Porto Rico & Virgin Is. | 8: 401, pl. 8: fig. 14 | 1939 |
| Nitzschia rabenhorstii | Grunow | K. Svenska Vet. Akad. Handl. | [ser. 4], 17{2}: 76 | 1880 |
| Nitzschia radicula | Hustedt | image |
| Nitzschia radicula var. rostrata | Hustedt | image |
| Nitzschia radiosa var. acuta | A.M. Edwards | image |
| Nitzschia radula | W. Smith | image |
| Nitzschia ralfsii | Woodhead & Tweed | image |
| Nitzschia rauhii | Manguin | image |
| Nitzschia rautenbachiae | Cholnoky | image |
| Nitzschia recta f. kariana | Berg | image |
| Nitzschia recta f. producta | Manguin | image |
| Nitzschia recta | Hantzsch ex Rabenhorst | image |
| Nitzschia recta var. alaskaensis | Foged | image |
| Nitzschia recta var. polaris | (Grunow) Grunow | image |
| Nitzschia recta var. robusta | Hustedt | Arch. Hydrobiol. | 43: 403, pl. XLI: figs. 2, 3 | 1950 |
| Nitzschia rectangulata | Hustedt | image |
| Nitzschia rectangulata | Kufferath | image |
| Nitzschia rectiformis | Hustedt | image |
| Nitzschia rectilonga | H. Takano | Bull. Tokai Reg. Fish. Res. Lab. | 112: 18, figs. 4, 24-30, 31 left | 1983 |
| Nitzschia rectirobusta | H. Lange-Bertalot in H. Lange-Bertalot & D. Metzeltin | Iconogr. Diatomol. | 2: 95 | 1996 |
| Nitzschia rectissima | Hustedt | image |
| Nitzschia regula f. pekinensis | Skvortzov | image |
| Nitzschia regula | Hustedt | image |
| Nitzschia regula var. curta | Skvortzov | image |
| Nitzschia regula var. fennica | Cleve-Euler | image |
| Nitzschia regula var. jeniseyensis | Skvortzov | image |
| Nitzschia regula var. robusta | Skvortzov | image |
| Nitzschia reguloides | Cholnoky | image |
| Nitzschia reimeri | Fryxell & Kaczmarska | image |
| Nitzschia reimeri | G.A. Fryxell & I. Kaczmarska in I. Kaczmarska & G.A. Fryxell | Diatom Res. | 9: 94, figs. 15-21 | 1994 |
| Nitzschia reimeri_('reimerii') | J.P. Kociolek & D.B. Herbst | Transactions of the American Microscopical Society | 111: 349, figs. 29-32, 39, 40 | 1992 |
| Nitzschia reimersenii | G. Fryxell & I. Kaczmarska | image |
| Nitzschia reimersenii | G.A. Fryxell & I. Kaczmarska in I. Kaczmarska & G.A. Fryxell | Diatom Research | 11: 379 | 1996 |
| Nitzschia reinhardii | Alexeenko | image |
| Nitzschia reinholdii | A. du Saar & H. de Wolf | Netherlands J. Sea Research | 6: 350, pl. I:3 | 1973 |
| Nitzschia reinholdii f. linearis | A. du Saar & H. de Wolf | Netherlands J. Sea Research | 6: 351, pl. I:11 | 1973 |
| Nitzschia reinholdii | Kanaya ex Barron & Baldauf | Micropaleontology | 32: 364, pl. 2: fig. 7 | 1986 |
| Nitzschia rennellensis | Foged | image |
| Nitzschia reversa f. parva | (Grunow) L.N. Bukhtiyarova | Algologia | 5: 422 | 1995 |
| Nitzschia reversa var. major | Grunow | image |
| Nitzschia reversa | W. Smith | Syn. Brit. Diat. | 1: 43, pl. XV: fig. 121 | 1853 |
| Nitzschia rhombica | Hustedt | image |
| Nitzschia rhombicolancettula | H. Lange-Bertalot & M. Werum | Lauterbornia | 78: 123, pls. 1, 2 | 2014 |
| Nitzschia rhombiformis | M. Potapova in M. Potapova & D.F. Charles | Proc. Int. Diat. Symp. | 17: 290, figs. 20-24 | 2004 |
| Nitzschia rhopalodioides | Hustedt | image |
| Nitzschia richterae | G.H. Schwabe & R. Simonsen | Int. Rev. Gesamten Hydrobiol. | 46: 268, fig. 5: 15, 16 | 1961 |
| Nitzschia richterae | Simonsen | image |
| Nitzschia riedelia | Schrader | image |
| Nitzschia rigida var. rigidula | H. Peragallo | image |
| Nitzschia rigida var. sinensis | Skvortzov | image |
| Nitzschia rimosa | Manguin | image |
| Nitzschia ritscheri | (Hustedt) Hasle | image |
| Nitzschia robusta | Hustedt | image |
| Nitzschia rochensis | D. Metzeltin, H. Lange-Bertalot & F. García-Rodríguez | Iconogr. Diatomol. | 15: 152, pl. 209: figs. 2-12 | 2005 |
| Nitzschia rolandii | H.J. Schrader | Initial Rep. Deep Sea Drilling Project | 18: 708, pl. 5: fig. 31, 42 (?); pl. 26: figs. 3, 4 | 1973 |
| Nitzschia rolandii | Schrader | image |
| Nitzschia romana | (Grunow) Mayer | image |
| Nitzschia romana | Grunow | image |
| Nitzschia romana var. curta | Petersen | image |
| Nitzschia romana var. frenguellii | Cleve-Euler | image |
| Nitzschia romanoides | Manguin | image |
| Nitzschia romanowiana | Pantocsek | image |
| Nitzschia rorida | Giffen | image |
| Nitzschia rorida | M.H. Giffen | Bot. Mar. | 18: 90, pl. IV: figs. 103, 104 | 1975 |
| Nitzschia rosenstockii | Lange-Bertalot | image |
| Nitzschia rostellata | Hustedt | image |
| Nitzschia rostrata | Grunow | image |
| Nitzschia rotula | Carter | image |
| Nitzschia rousselinii | Maillard | image |
| Nitzschia ruda | B.J. Cholnoky | Bot. Mar. | 11(suppl.): 79, figs. 144-146 | 1968 |
| Nitzschia ruda | Cholnoky | image |
| Nitzschia rufitorrentis | Cholnoky | image |
| Nitzschia rufitorrentis | Cholnoky | image |
| Nitzschia rugosa | Hustedt | image |
| Nitzschia rugosa Østrup | | image |
| Nitzschia rupestris | Proschkina-Lavrenko | image |
| Nitzschia rusingae | E. Rott & L. Sitoki in Sitoki et al. | Diatom Research | 28: 169, figs. 17-19, 30-37 | 2013 |
| Nitzschia ruttneri | Hustedt | image |
| Nitzschia sakaensis | Foged | image |
| Nitzschia salina | Sheshukova | image |
| Nitzschia salinarum | (Grunow) Grunow | image |
| Nitzschia salinarum | Grunow | image |
| Nitzschia salinicola | Aleem & Hustedt | image |
| Nitzschia salissigi | Foged | image |
| Nitzschia salpaespinosae | Lange-Bertalot | image |
| Nitzschia salta | Carter | image |
| Nitzschia salvadoriana | Hustedt | Ber. Deutsch. Bot. Ges. | 64: 308, fig. 27 | 1952 |
| Nitzschia sancti-francisci | A. Witkowski & H. Lange-Bertalot in Witkowski et al. | Beih. Nova Hedwigia | 144: 219, figs. 38-45 | 2015 |
| Nitzschia sansimoni | S. Blanco, I. Álvarez-Blanco & C. Cejudo-Figueiras in S. Blanco et al. | Diatom Research | 28: 18, figs. 11-28, 39-43 | 2012 |
| Nitzschia sansomei | Foged | image |
| Nitzschia saprobionta | Van de Vijver & de Zwart | Notulae Algarum | 298: 3 | 2023 |
| Nitzschia scabra | Cleve | image |
| Nitzschia scalaris | (Ehrenberg) W. Smith | image |
| Nitzschia scalaris var. gigantea | Grunow | image |
| Nitzschia scalaris var. minor | Grunow | image |
| Nitzschia scalaris var. undulata | Wolle | Diat. N. America: | expl. pl. XXXIV: figs. 1, 2 | 1890 |
| Nitzschia scaligera | Grunow | image |
| Nitzschia scalpelliformis | Grunow | image |
| Nitzschia schauinslandi | Hustedt | image |
| Nitzschia schefterae | C.S. Lobban, M.P. Ashworth, J.J.M. Calaor, & E.C. Theriot | Phytotaxa | 401: 229, figs. 7, 8, 141-144 | 2019 |
| Nitzschia schiellerupii | Foged | image |
| Nitzschia schliephackeana | Grunow ex Rabenhorst | image |
| Nitzschia schwabei | Krasske ex H. Lange-Bertalot in H. Lange-Bertalot et al. | Iconographia Diatomologica | 3: 164 | 1996 |
| Nitzschia schweikertii | A. Witkowski, H. Lange-Bertalot, M. Ruppel, & J.P. Kociolek in A. Witkowski et al. | Phycologia | 43: 589, figs. 83-93 | 2004 |
| Nitzschia schweinfurthii | Grunow | image |
| Nitzschia schweinfurthii | Grunow | image |
| Nitzschia scoliotropis | Cleve | image |
| Nitzschia scutellum | (W. Smith) Wolle | Diat. N. America: | expl. pl. XLIV: fig. 24 | 1890 |
| Nitzschia secallii | Azpeitia y Moros | image |
| Nitzschia sellingii | Berg | image |
| Nitzschia semicostata | Boyer | image |
| Nitzschia semidesum | Hohn & Hellerman | image |
| Nitzschia semigibbosa | Van Heurck | image |
| Nitzschia semirobusta | Lange-Bertalot | Biblioth. Diatomol. | 27: 149, pl. 120: figs. 3-21; pl. 122: fig. 7; pl. 123: figs. 1-7 | 1993 |
| Nitzschia senegalensis | Grunow | image |
| Nitzschia sentiformis | Hohn & Hellerman | image |
| Nitzschia separanda | (Hustedt) Hasle | image |
| Nitzschia serians | Cleve & Grunow | image |
| Nitzschia seriata | Cleve | image |
| Nitzschia seriata f. curvata | Lohmann | image |
| Nitzschia seriata f. obtusa | G.R. Hasle | Taxon | 23: 427 | 1974 |
| Nitzschia seriata f. obtusa | G.R. Hasle | Skr. Norske Vidensk.-Akad. Oslo, Mat.-Naturvidensk. Kl., ser. 2, | 18: 10, pl. 3: figs. 8, 9, 11; pl. 4: figs. 5-7 | 1965 |
| Nitzschia seriata f. obtusa | Hasle | image |
| Nitzschia seriata f. obtusa | Hasle | image |
| Nitzschia seriata var. fraudulenta | Cleve | image |
| Nitzschia serpenticula | Cholnoky | image |
| Nitzschia serpentiformis | Carter | image |
| Nitzschia serpentiraphe | Lange-Bertalot | Biblioth. Diatomol. | 27: 151, pls. 125-128 | 1993 |
| Nitzschia serrata f. elongata | Compère | image |
| Nitzschia serrata | Manguin | image |
| Nitzschia shanxiensis | Q. Liu & S.L. Xie in Liu et al. | Phytotaxa | 312: 229 | 2017 |
| Nitzschia sheshukowae | Skvortzov | image |
| Nitzschia siberica | Grunow | image |
| Nitzschia sibirica | Kozlowsky | image |
| Nitzschia sibirica | Skvortzov | image |
| Nitzschia sibirica | W.M. Kozłowski | Zap. Kievsk. Obshch. Estestvoisp. | 11: 28, fig. 3 | 1890 |
| Nitzschia sibula | Giffen | image |
| Nitzschia sibula | M.H. Giffen | Bot. Mar. | 16: 42, pl. III: figs. 59, 60 | 1973 |
| Nitzschia sicula | (Castracane) Hustedt | Deutsche Antarkt. Exped. 1938/1939, Wiss. Ergebn. | 2: 180 | 1958 |
| Nitzschia sicula var. migrans | (Cleve) Hasle | image |
| Nitzschia sieboldia | H.J. Schrader | image |
| Nitzschia sierra-leonensis | Woodhead & Tweed | image |
| Nitzschia sigma | (Kützing) W. Smith | image |
| Nitzschia sigma f. brevior | Grunow in Van Heurck | Syn. Diat. Belg.: | pl. LXVI: fig. 4 | 1881 |
| Nitzschia sigma f. genuina | Cleve | image |
| Nitzschia sigma f. indica | Thomas & Gonzalves | image |
| Nitzschia sigma f. maxima | Grunow | image |
| Nitzschia sigma var. abludens | Grunow | image |
| Nitzschia sigma var. anguillula | (Schumann) Grunow | image |
| Nitzschia sigma var. calamae | Frenguelli | image |
| Nitzschia sigma var. clausii | (Hantzsch) Grunow | image |
| Nitzschia sigma var. consimilis | Grunow | image |
| Nitzschia sigma var. curvula | (Ehrenberg) Brun | image |
| Nitzschia sigma var. diminuta | Grunow in Van Heurck | Syn. Diat. Belg.: | pl. LXVI: fig. 9 | 1881 |
| Nitzschia sigma var. fasciculata | Grunow | image |
| Nitzschia sigma var. fonticola | Hustedt | Arch. Hydrobiol. Suppl. | 15: 486, pl. XL: figs. 16, 17 | 1938 |
| Nitzschia sigma var. genuina | Grunow | image |
| Nitzschia sigma var. habirshawii | Grunow in Van Heurck | Syn. Diat. Belg.: | expl. pl. LXVI: fig. 4 | 1881 |
| Nitzschia sigma var. indica | Karsten | image |
| Nitzschia sigma var. intercedens | Grunow | image |
| Nitzschia sigma var. maxima | Grunow | image |
| Nitzschia sigma var. neogena | Grunow | image |
| Nitzschia sigma var. rigida | (Kützing) Grunow | image |
| Nitzschia sigma var. rigida | Grunow in Van Heurck | Syn. Diat. Belg.: | pl. LXVI: fig. 2 | 1881 |
| Nitzschia sigma var. rigidula | Grunow in Van Heurck | Syn. Diat. Belg.: | pl. LXVI: fig. 8 | 1881 |
| Nitzschia sigma var. robusta Østrup | | image |
| Nitzschia sigma var. scabra | Cleve | image |
| Nitzschia sigma var. serpentina | Skvortzov | image |
| Nitzschia sigma var. sigmatella | Grunow | image |
| Nitzschia sigma var. subcapitata | Rabenhorst | image |
| Nitzschia sigma var. subrecta | (Grunow) Grunow | image |
| Nitzschia sigma var. undulata | Hohn & Hellerman | image |
| Nitzschia sigma var. valida | Grunow | image |
| Nitzschia sigmaformis | Hustedt | image |
| Nitzschia sigmaformis var. socialis | Karajeva | image |
| Nitzschia sigmatella | Gregory | image |
| Nitzschia sigmatella var. minor | Grunow | image |
| Nitzschia sigmatella var. pusilla | Grunow | image |
| Nitzschia sigmatella var. subrecta | Grunow | image |
| Nitzschia sigmatoformis var. subrecta | Proschkina-Lavrenko | image |
| Nitzschia sigmoidea | (Nitzsch) W. Smith | Syn. Brit. Diat. | 1: 38 | 1853 |
| Nitzschia sigmoidea var. armoricana | (Kützing) Brebisson | image |
| Nitzschia sigmoidea var. balatonis | Pantocsek | image |
| Nitzschia sigmoidea var. brebissonii | (Kützing) Rabenhorst | image |
| Nitzschia sigmoidea var. genuina | Mayer | image |
| Nitzschia sigmoidea var. reflexa | Carruthers | image |
| Nitzschia sigmoidea var. undulata | Petit | image |
| Nitzschia silica | Archibald | image |
| Nitzschia silicula | Hustedt | image |
| Nitzschia silicula var. commutata | Reimer | image |
| Nitzschia siliqua | Archibald | image |
| Nitzschia sillimanorum "C.G.E." | | image |
| Nitzschia similis | Cleve-Euler | image |
| Nitzschia similis | Hustedt | image |
| Nitzschia simplex | Hustedt | image |
| Nitzschia simpliciformis | Cholnoky | image |
| Nitzschia simsiae | A. Witkowski, H. Lange-Bertalot & J.P. Kociolek in Witkowski et al. | Beih. Nova Hedwigia | 144: 213, figs. 1-16 | 2015 |
| Nitzschia sinuata | (W. Smith) Grunow | image |
| Nitzschia sinuata var. constricta | J.Y. Chen & H.Z. Zhu in Zhu & Chen | The algal flora and aquatic fauna of the Wulingyuan Nature Reserve Area, Hunan, China: | 36, fig. I: 8 | 1989 |
| Nitzschia sinuata var. delognei | (Grunow) Lange-Bertalot | image |
| Nitzschia sinuata var. denticuloides | Biswas | image |
| Nitzschia sinuata var. svalbardensis | Foged | Tromsö Museums Skrifter | 11: 144, pl. XXII: fig. 1 | 1964 |
| Nitzschia sinuata var. tabellaria | (Grunow) Hustedt in Pascher | Süssw.-Fl. | 10, 2. Aufl.: 409 | 1930 |
| Nitzschia slevicensis "A. | S." | image |
| Nitzschia smithii | Ralfs | image |
| Nitzschia smithii var. subflexuosa | Grunow | image |
| Nitzschia sociabilis | Hustedt | image |
| Nitzschia socialis | Gregory | image |
| Nitzschia socialis var. australis | Grunow | image |
| Nitzschia socialis var. baltica | Grunow | image |
| Nitzschia socialis var. basaltica | Brun & Heribaud | image |
| Nitzschia socialis var. kariana | Grunow | image |
| Nitzschia socialis var. massiliensis | Grunow | image |
| Nitzschia socialis var. septentrionalis Østrup | | image |
| Nitzschia socialis var. seyschellensis | Grunow | image |
| Nitzschia solea | Hustedt | image |
| Nitzschia solea | Jurilj | image |
| Nitzschia solgensis | Cleve-Euler | Kongl. Svenska Vetensk.-Akad. Handl., ser. 4, | 3{3}: 67 | 1952 |
| Nitzschia solida | J. Frenguelli & H.A. Orlando | Publ. Inst. Antárt. Argent. | 5: 104, pl. III: fig. 16 | 1958 |
| Nitzschia solita | Hustedt | image |
| Nitzschia sonora | Carter | image |
| Nitzschia soratensis | E.A. Morales & M.L. Vis | Proc. Acad. Nat. Sci. Philadelphia | 156: 128, figs. 253-256, 277-280 | 2007 |
| Nitzschia spathulata | Brebisson ex W. Smith | image |
| Nitzschia spathulata var. angusta | Grunow | image |
| Nitzschia spathulatoides | C.S. Lobban, M.P. Ashworth, J.J.M. Calaor, & E.C. Theriot | Phytotaxa | 401: 227, figs. 121-129 | 2019 |
| Nitzschia spathulifera | Grunow | image |
| Nitzschia speciosa | Hustedt | image |
| Nitzschia spectabilis | (Ehrenberg) Ralfs | image |
| Nitzschia spectabilis var. americana | Grunow | image |
| Nitzschia spectabilis var. gigantea | Grunow | image |
| Nitzschia spectabilis | W. Smith | image |
| Nitzschia spelaea | Krieger | image |
| Nitzschia sphaerophora | Cleve-Euler | image |
| Nitzschia sphaerophora var. acephala | Proschkina-Lavrenko | image |
| Nitzschia spiculoides | Hustedt | image |
| Nitzschia spiculum | Hustedt | image |
| Nitzschia spinarum | H. Lange-Bertalot in H. Lange-Bertalot & D. Metzeltin | Iconogr. Diatomol. | 2: 96, pl. 70: figs. 34, 35 | 1996 |
| Nitzschia spinifera | Z. Levkov, D. Metzeltin & S. Krstic | Proc. Int. Diatom Symp. | 18: 244, figs. 25-34 | 2006 |
| Nitzschia spiralis | Mereschkowsky | image |
| Nitzschia splendida | (Ehrenberg) D.M. Williams & Van de Vijver | Fottea | 21: 170 | 2021 |
| Nitzschia stagnorum | Rabenhorst | Alg. Sachs. [exsicc.] | 63/64: no. 625 | 1857 |
| Nitzschia staurophora | Giffen | image |
| Nitzschia steenbergensis | Giffen | image |
| Nitzschia stefaninii | Frenguelli | image |
| Nitzschia stellata | Manguin | image |
| Nitzschia stelmachpessiana | S. Hamsher, K. Kopalová, J.P. Kociolek, R. Zidarova, & B. Van de Vijver | Fottea, Olomouc | 16: 94, figs. 141-155 | 2016 |
| Nitzschia steynii | Cholnoky | image |
| Nitzschia stiliformis | Hustedt | image |
| Nitzschia stimulus | Cholnoky | image |
| Nitzschia stockmayeri | Pantocsek | image |
| Nitzschia stoliczkiana | Grunow | image |
| Nitzschia stoliczkiana var. arverna | M. Peragallo | image |
| Nitzschia stompsii | Cholnoky | image |
| Nitzschia strelnikovae | H. Lange-Bertalot apud H. Lange-Bertalot & S.I. Genkal in H. Lange-Bertalot (ed.) | Iconographia Diatomologica | 6: 79, pl. 70: figs. 6-11 | 1999 |
| Nitzschia strelnikovae | H. Lange-Bertalot, S.I. Genkal, & N.V. Vekhov | Biol. Inland Waters | 2004{4}: 15, pl. 2: figs. | 2004 |
| Nitzschia stricta | Hustedt | image |
| Nitzschia strigillata | Hustedt | image |
| Nitzschia striolata | Hustedt | image |
| Nitzschia subaccommodata | H.P. Gandhi ex Karthick in Guiry et al. | Notulae algarum | 133: 6, description and illustration in Gandhi (1998: 218, pl. VI: fig. 219; pl. VII: fig. 280) | 2020 |
| Nitzschia subaccommodata | H.P. Gandhi | Fresh-water Diatoms Central Gujarat: | 218, pl. VI: fig. 219; pl. VII: fig. 280 | 1998 |
| Nitzschia subacicularis | Hustedt | image |
| Nitzschia subacuta | Hustedt | image |
| Nitzschia subadapta | Cholnoky | image |
| Nitzschia subamphioxoides | Hustedt | image |
| Nitzschia subandina | (Frenguelli) J.P. Kociolek & A.A. Vouilloud | Bol. Soc. Argent. Bot. | 55: 524 | 2020 |
| Nitzschia subapiculata | H.P. Gandhi ex Karthick in Guiry et al. | Notulae algarum | 133: 6, description and illustration in Gandhi (1998: 123, pl. II: fig. 70; pl. III: fig. 87) | 2020 |
| Nitzschia subapiculata | H.P. Gandhi | Fresh-water Diatoms Central Gujarat: | 123, pl. II: fig. 70; pl. III: fig. 87 | 1998 |
| Nitzschia subbacata | E. Manguin ex Kociolek & Reviers | Cryptogamie: Algologie | 17: 213 | 1996 |
| Nitzschia subbacata | E. Manguin | Mém. Mus. Natl. Hist. Nat. [Paris], Sér. B, Bot. | 12: 32, pl. VII: fig. 4 | 1962 |
| Nitzschia subbacata | Manguin | image |
| Nitzschia subcapitata Østrup | | image |
| Nitzschia subcapitellata | Hustedt | image |
| Nitzschia subcohaerens var. scandica | Cleve-Euler | image |
| Nitzschia subcommunis | Hustedt | image |
| Nitzschia subconfinis | Cholnoky | image |
| Nitzschia subconstricta | Desikachary & Prema | image |
| Nitzschia subconstricta | Grunow | image |
| Nitzschia subcostata | Grunow | image |
| Nitzschia subcurvata | G.R. Hasle | Taxon | 23: 426 | 1974 |
| Nitzschia subcurvata | Hasle | image |
| Nitzschia subdenticula | Hustedt | image |
| Nitzschia subdilatata | Grunow | image |
| Nitzschia subfalcata | T. Marsson | Zeitschrift für angewandte Mikroskopie und klinische Chemie | 6: 210 | 1900 |
| Nitzschia subfraudulenta | G.R. Hasle | Taxon | 23: 427 | 1974 |
| Nitzschia subfrequens | R. Simonsen | Kieler Meeresf. | 16: 130, pl. 2: figs. 13-15 | 1960 |
| Nitzschia subfrequens | Simonsen | image |
| Nitzschia subfrustulum | Hustedt | image |
| Nitzschia subgraciloides | H.P. Gandhi | Fresh-water Diatoms Central Gujarat: | 264 | 1998 |
| Nitzschia subhybrida | Hustedt | image |
| Nitzschia subinflata | Hustedt | image |
| Nitzschia subinvicta | Hustedt | image |
| Nitzschia sublaevis | H.P. Gandhi ex Karthick in Guiry et al. | Notulae algarum | 133: 7, description and illustration in Gandhi (1998: 220, pl. VI: fig. 220) | 2020 |
| Nitzschia sublaevis | H.P. Gandhi | Fresh-water Diatoms Central Gujarat: | 220, pl. VI: fig. 220 | 1998 |
| Nitzschia sublanceolata | Archibald | image |
| Nitzschia sublica | H.P. Gandhi ex Karthick in Guiry et al. | Notulae algarum | 133: 7, description and illustration in Gandhi (1998: 124, pl. II: fig. 71) | 2020 |
| Nitzschia sublica | H.P. Gandhi | Fresh-water Diatoms Central Gujarat: | 124, pl. II: fig. 71 | 1998 |
| Nitzschia sublinearis | Hustedt | image |
| Nitzschia sublinearis var. baikalensis | Skvortzov | image |
| Nitzschia sublinearis var. jeniseyensis | Skvortzov | image |
| Nitzschia sublinearis var. major | Frenguelli | image |
| Nitzschia sublinearis var. sibirica | Skvortzov | image |
| Nitzschia sublineata | Hasle | image |
| Nitzschia sublongirostris | H.P. Gandhi ex Karthick in Guiry et al. | Notulae algarum | 133: 7, description and illustration in Gandhi (1998: 72, pl. III: figs. 171, 172) | 2020 |
| Nitzschia sublongirostris | H.P. Gandhi | Fresh-water Diatoms Central Gujarat: | 72, pl. III: figs. 171, 172 | 1998 |
| Nitzschia submarina | Hustedt | image |
| Nitzschia submediocris | Hustedt | image |
| Nitzschia subodiosa | Cholnoky | image |
| Nitzschia subpacifica | G.R. Hasle | Taxon | 23: 427 | 1974 |
| Nitzschia subpacifica | Hasle | image |
| Nitzschia subpalea | Skvortzov | image |
| Nitzschia subpunctata | Cholnoky | image |
| Nitzschia subregula | Hustedt | image |
| Nitzschia subromana | Hustedt | image |
| Nitzschia subrostrata f. elongata | Compère | image |
| Nitzschia subrostrata | Hustedt | image |
| Nitzschia subrostratoides | Cholnoky | image |
| Nitzschia subsalsa | Cholnoky | image |
| Nitzschia subtibetica | Skvortzov | image |
| Nitzschia subtilioides | Hustedt | image |
| Nitzschia subtilis | (Kützing) Grunow | image |
| Nitzschia subtilis f. tchadensis | Compère | image |
| Nitzschia subtilis var. acicularis | Frenguelli | image |
| Nitzschia subtilis var. genuina | Mayer | image |
| Nitzschia subtilis var. glacialis | Grunow | image |
| Nitzschia subtilis var. paleacea | Grunow | image |
| Nitzschia subtubicola | H. Germain | Fl. Diat.: | 349, pl. 131: figs. 12-15; pl. 166: figs. 2, 3 | 1981 |
| Nitzschia subvitrea | Hustedt | image |
| Nitzschia subvitrea var. capensis | Cholnoky | image |
| Nitzschia subvitrea var. maxima | Skvortzov | image |
| Nitzschia suchlandtii_('suchlandti') | Hustedt | image |
| Nitzschia suecica | (Grunow) Cleve-Euler | image |
| Nitzschia sulcata | Grunow | K. Svenska Vet. Akad. Handl. | [ser. 4], 17{2}: 76 | 1880 |
| Nitzschia sundaensis | Hustedt | image |
| Nitzschia superba | Leuduger-Fortmorel | image |
| Nitzschia supralitorea | Lange-Bertalot | image |
| Nitzschia surirelloidea | Prowse | image |
| Nitzschia svedstrupii | Foged | image |
| Nitzschia syrachii | Foged | image |
| Nitzschia szaboi | Pantocsek | image |
| Nitzschia tabellaria | (Grunow) Grunow | image |
| Nitzschia taenia | Hustedt | Deutsche Antarkt. Exped. 1938/1939, Wiss. Ergebn. | 2: 180, fig. 195 | 1958 |
| Nitzschia taenia | W. Smith | image |
| Nitzschia tainensis | Foged | image |
| Nitzschia tallyana | Grunow | image |
| Nitzschia tantata | Carter & Denny | image |
| Nitzschia tantata | J.R. Carter & P. Denny | Nova Hedwigia | 54: 192, pl. 7: fig. 17 | 1992 |
| Nitzschia tarangensis | C.S. Lobban | Phytotaxa | 508: 257, figs. 103-110 | 2021 |
| Nitzschia tarda | Hustedt | image |
| Nitzschia taygeteae | C.S. Lobban, M.P. Ashworth, J.J.M. Calaor, & E.C. Theriot | Phytotaxa | 401: 219, figs. 12, 21, 83-88 | 2019 |
| Nitzschia taylorii | B. Alakananda, P.B. Hamilton & B. Karthick in Alakananda et al. | Phytotaxa | 54: 15, figs. 1-25 | 2012 |
| Nitzschia teletzkensis | Sheshukova in Proshkina-Lavrenko & Sheshukova (eds.) | Diatomovyi Sbornik: | 153, fig. 12 | 1953 |
| Nitzschia tenera | Meister | image |
| Nitzschia tenerifa | Lange-Bertalot | Biblioth. Diatomol. | 27: 153, pl. 112: figs. 1-5; pl. 113: figs. 1-5 | 1993 |
| Nitzschia tenuiarcuata | H. Takano | Bull. Tokai Reg. Fish. Res. Lab. | 112: 17, figs. 3, 19-23 | 1983 |
| Nitzschia tenuirostris | Manguin | image |
| Nitzschia tenuis | (W. Smith) Grunow | image |
| Nitzschia tenuis f. valdepunctata | Maillard | image |
| Nitzschia tenuis var. media | (Hantzsch) Rabenhorst | Fl. Eur. Alg. | I: 158 | 1864 |
| Nitzschia tenuis var. parva | Rabenhorst | Fl. Eur. Alg. | I: 156 | 1864 |
| Nitzschia tenuis var. sigmoidea | Arnott | image |
| Nitzschia tenuis | W. Smith | image |
| Nitzschia tenuissima | H. Peragallo & M. Peragallo | Diatomées Marines de France: | pl. LXXIII: fig. 14 (desc. on p. 287, 1901) | 1900 |
| Nitzschia tenuistriata | Hustedt | image |
| Nitzschia tergestina | (Kützing) Ralfs | image |
| Nitzschia terrestris | (Petersen) Hustedt | image |
| Nitzschia terricola | Lund | image |
| Nitzschia tetraplacata | Mereschkowsky | image |
| Nitzschia thermalis | (Ehrenberg) Auerswald | image |
| Nitzschia thermalis | (Ehrenberg) Grunow | image |
| Nitzschia thermalis f. curta | Hustedt | image |
| Nitzschia thermalis var. amphicephala | Manguin | image |
| Nitzschia thermalis var. capitata | H.P. Gandhi ex Karthick in Guiry et al. | Notulae algarum | 133: 7, description and illustration in Gandhi (1998: 222, pl. VI: figs. 228-232) | 2020 |
| Nitzschia thermalis var. capitata | H.P. Gandhi | Fresh-water Diatoms Central Gujarat: | 222, pl. VI: figs. 228-232 | 1998 |
| Nitzschia thermalis var. curta | Skvortzov | image |
| Nitzschia thermalis var. intermedia | Grunow | image |
| Nitzschia thermalis var. littoralis | Grunow | image |
| Nitzschia thermalis var. minor | Hilse | image |
| Nitzschia thermalis var. serians | (Brebisson) Grunow | image |
| Nitzschia thermalis var. stagnorum | (Rabenhorst) Rabenhorst | image |
| Nitzschia thermaloides | Hustedt | image |
| Nitzschia thienemannii_('thienemanni') | Hustedt | image |
| Nitzschia tibetana | Hustedt | image |
| Nitzschia tiltilensis | Frenguelli | image |
| Nitzschia tingrica | Jao & Lee | image |
| Nitzschia tirstrupensis | Foged | image |
| Nitzschia tongatensis | Grunow | image |
| Nitzschia tonkinensis | Amosse | image |
| Nitzschia tonoensis f. angusta | Compère | image |
| Nitzschia tonoensis | Foged | image |
| Nitzschia torta | Gandhi | image |
| Nitzschia towutensis | Hustedt | image |
| Nitzschia traheaformis | Chunlian Li, A. Witkowski, & S.-X. Yu in Witkowski et al. | J. Coastal Res. | 74(special issue): 189, figs. 3a,b, 14a-f | 2016 |
| Nitzschia translucida | Hustedt | image |
| Nitzschia transtagensis | E.A. Morales, M.H. Novais, C.E. Wetzel, M.M. Morais & L. Ector | Botany Letters | 167: 34, figs. 2-26 | 2019 |
| Nitzschia transvaalensis | Cholnoky | image |
| Nitzschia transylvanica | Pantocsek | image |
| Nitzschia tripudio | B. Alakananda, B. Karthick, J.C. Taylor & P.B. Hamilton | Phycol. Research | 63: 33, figs. 37-55 | 2014 |
| Nitzschia trobajoae | A. Witkowski, H. Lange-Bertalot & J.P. Kociolek in Witkowski et al. | Beih. Nova Hedwigia | 144: 222, figs. 46-66 | 2015 |
| Nitzschia tropica | Hustedt | image |
| Nitzschia tryblionella f. angustior | Mayer | image |
| Nitzschia tryblionella f. constricta | Mayer | image |
| Nitzschia tryblionella f. curta | Dippel | image |
| Nitzschia tryblionella f. subconstricta | Hustedt | image |
| Nitzschia tryblionella f. typica | Mayer | image |
| Nitzschia tryblionella | Hantzsch in Rabenhorst | Alg. Sachs. Dec. 99/100: | no. 984 | 1860 |
| Nitzschia tryblionella var. ambigua | Grunow | K. Svenska Vet.-Akad. Handl., ser. 4, | 17{2}: 69, pl. V: fig. 91 | 1880 |
| Nitzschia tryblionella var. amphicephala | A.M. Edwards | image |
| Nitzschia tryblionella var. biharensis | Pantocsek | image |
| Nitzschia tryblionella var. calida | (Grunow) Van Heurck | image |
| Nitzschia tryblionella var. constricta | Kisselev | image |
| Nitzschia tryblionella var. constricta | T. Marsson | Zeitschrift für angewandte Mikroskopie und klinische Chemie | 6: 183 | 1900 |
| Nitzschia tryblionella var. crassa | (Pantocsek) Cleve-Euler | image |
| Nitzschia tryblionella var. genuina | Grunow | image |
| Nitzschia tryblionella var. gigantea | M. Peragallo | image |
| Nitzschia tryblionella var. intermedia | Grunow | image |
| Nitzschia tryblionella var. levidensis | (W. Smith) Grunow | image |
| Nitzschia tryblionella var. littoralis | (Grunow) Grunow | image |
| Nitzschia tryblionella var. maxima | Grunow | image |
| Nitzschia tryblionella var. obtusiuscula | Grunow | image |
| Nitzschia tryblionella var. recta | McCall | image |
| Nitzschia tryblionella var. salinarum | Grunow | image |
| Nitzschia tryblionella var. suborbicularis | Cleve-Euler | image |
| Nitzschia tryblionella var. subsalina | (O'Meara) Grunow | image |
| Nitzschia tryblionella var. victoriae | (Grunow) Grunow | image |
| Nitzschia tryblionella var. yarrensis | Grunow in Cleve & Grunow | K. Svenska Vet.-Akad. Handl. | 17{2}: 69, no fig. | 1880 |
| Nitzschia tsarenkoi | H. Lange-Bertalot apud Tsarenko, Lange-Bertalot, Stupina, & Wasser in Nevo & Wasser | Bacillariophyta: | 325, Pl. XXV: figs. 215-217 | 2000 |
| Nitzschia tubicola | Grunow | image |
| Nitzschia tumida | Hantzsch | image |
| Nitzschia tumulana | Patrick & Freese | image |
| Nitzschia turgidula | Hustedt | Deutsche Antarkt. Exped. 1938/1939, Wiss. Ergebn. | 2: 182, pl. 13: figs. 172, 173 | 1958 |
| Nitzschia turgiduloides | G.R. Hasle | Skr. Norske Vid. Akad. Oslo, Mat.-Naturv. Kl., N.S. | 18: 28 | 1965 |
| Nitzschia turkestanica | Kisselev | image |
| Nitzschia umaoiensis | Akiba | image |
| Nitzschia umaoiensis | F. Akiba | Initial Rep. Deep Sea Drilling Project | 87: 440, pl. 23: figs. 1, 2 | 1985 |
| Nitzschia umbilicata | Hustedt | Explor. Parc Natl. Albert, Mission H. Damas | 8: 129, pl. XI: fig. 65 | 1949 |
| Nitzschia umbonata | (Ehrenberg) Lange-Bertalot | image |
| Nitzschia ungeri | (Grunow) Schütt | image |
| Nitzschia vacillata | Giffen | image |
| Nitzschia vacua | Hustedt | image |
| Nitzschia valdecostata | Lange-Bertalot & Simonsen | image |
| Nitzschia valdestriata | Aleem & Hustedt | image |
| Nitzschia valens | (Ehrenberg) Ralfs | image |
| Nitzschia valga | Cholnoky | image |
| Nitzschia valida | Cleve & Grunow | image |
| Nitzschia valida f. longissima | Grunow in Van Heurck | Syn. Diat. Belg.: | pl. LXV: fig. 4 | 1881 |
| Nitzschia validissima | Cholnoky | image |
| Nitzschia vana | Cholnoky | image |
| Nitzschia vancauwenberghiana | S. Hamsher, K. Kopalová, J.P. Kociolek, R. Zidarova, & B. Van de Vijver | Fottea, Olomouc | 16: 95, figs. 156-166 | 2016 |
| Nitzschia vandeputteana | S. Hamsher, K. Kopalová, J.P. Kociolek, R. Zidarova, & B. Van de Vijver | Fottea, Olomouc | 16: 95, figs. 167-182 | 2016 |
| Nitzschia vandermerwei | Cholnoky | image |
| Nitzschia vanheurckii | (M. Peragallo) Hasle | image |
| Nitzschia vanhoeffenii | Heiden & Kolbe | image |
| Nitzschia vanoyei_('van | Oyei') Cholnoky | image |
| Nitzschia varelae | R. Carballeira, D.G. Mann & R. Trobajo in Carballeira et al. | Eur. J. Phycol. | 52: 347, figs. 2-27 | 2017 |
| Nitzschia variepunctata | Heiden | Mitth. Mecklenb. Geol. Landesanst. | 10{21}: 17, fig. 22 | 1900 |
| Nitzschia vasnaii | Gandhi | image |
| Nitzschia vasta | Hustedt | image |
| Nitzschia vedelii | Foged | image |
| Nitzschia velazqueziana | S. Hamsher, K. Kopalová, J.P. Kociolek, R. Zidarova, & B. Van de Vijver | Fottea, Olomouc | 16: 96, figs. 183-201 | 2016 |
| Nitzschia venerata | C.S. Lobban | Botanica Marina | 66: 74, figs. 1A-D, 2A-E, 3A-D | 2023 |
| Nitzschia veneziana | Cholnoky | image |
| Nitzschia ventricosa | J.L. Palmer | image |
| Nitzschia vermica | Skvortzov | image |
| Nitzschia vermicularis | (Kützing) Hantzsch in Rabenhorst | Alg. Sachsens | 89/90: no. 889 | 1859 |
| Nitzschia vermicularis | (Kützing) Ralfs | image |
| Nitzschia vermicularis f. minor | Grunow | image |
| Nitzschia vermicularis f. minor | Truan y Luard | image |
| Nitzschia vermicularis var. dillingensis | A. Mayer | Denkschr. K. Bayer. Bot. Ges. | 13: 116, pl. II: fig. 38 | 1917 |
| Nitzschia vermicularis var. maeotica | Pantocsek | image |
| Nitzschia vermicularis var. minima | O. Müller | image |
| Nitzschia vermicularis var. minor | Pantocsek & Greguss | image |
| Nitzschia vermicularis var. minuta | Playfair | image |
| Nitzschia vermicularis var. sialis | Playfair | image |
| Nitzschia vermicularis var. terrestris | Petersen | image |
| Nitzschia vermicularoides | H. Lange-Bertalot & U. Rumrich in U. Rumrich, H. Lange-Bertalot, & M. Rumrich | Iconogr. Diatomol. | 9: 187, pl. 157: figs. 1-4 | 2000 |
| Nitzschia vermiculata | Castracane | image |
| Nitzschia verrucosa | O'Meara | image |
| Nitzschia vexans | Grunow | image |
| Nitzschia vidarbhensis | Sarode & Kamat | image |
| Nitzschia vidovichii | (Grunow) Grunow | image |
| Nitzschia vildaryana | U. Rumrich & H. Lange-Bertalot in U. Rumrich, H. Lange-Bertalot, & M. Rumrich | Iconogr. Diatomol. | 9: 189, pl. 169: figs. 1-9 | 2000 |
| Nitzschia villarealii | G. Fryxell | Diatom Research | 15: 62, figs. 40-56 | 2000 |
| Nitzschia virgata | Roper | image |
| Nitzschia virgata var. capitellata | (Hustedt) Frenguelli | image |
| Nitzschia vishwanthae | Singh | image |
| Nitzschia visurgis | Hustedt | Abh. Naturwiss. Ver. Bremen | 34: 339, text-fig. 43 | 1957 |
| Nitzschia vitrea f. fossilis | M. Peragallo | image |
| Nitzschia vitrea f. major | Grunow | image |
| Nitzschia vitrea f. subcapitata | Mayer | image |
| Nitzschia vitrea | Norman | image |
| Nitzschia vitrea | Norman | image |
| Nitzschia vitrea var. arcuata | Dippel | image |
| Nitzschia vitrea var. finnmarchica | Grunow | image |
| Nitzschia vitrea var. gallica | Brun | image |
| Nitzschia vitrea var. hustedtii | Meister | image |
| Nitzschia vitrea var. kerguelensis | Grunow | image |
| Nitzschia vitrea var. major | Grunow | image |
| Nitzschia vitrea var. minor Østrup | | image |
| Nitzschia vitrea var. ornata | Meister | image |
| Nitzschia vitrea var. recta | (Hantzsch) Van Heurck | image |
| Nitzschia vitrea var. salinarum | Grunow | image |
| Nitzschia vitrea var. salinarum | Grunow | image |
| Nitzschia vitrea var. scaphiformis | Wislouch & Poretzky in Poretzky | Trudy Leningradskago Obschchestva Estestvoispytatelei | 53(3): 147, fig. 8 | 1924 |
| Nitzschia vitrea var. scintillans | M. Peragallo | image |
| Nitzschia vitrea var. subvitrea | (Hustedt) Wood | image |
| Nitzschia vitrea var. tenuistriata | E. Manguin | Mém. Mus. Natl. Hist. Nat. [Paris], Sér. B, Bot. | 12: 33, pl. VI: fig. 8 | 1962 |
| Nitzschia vitrea var. tenuistriata | E. Manguin ex Kociolek & Reviers | Cryptogamie: Algologie | 17: 213 | 1996 |
| Nitzschia vitrea var. tenuistriata | Manguin | image |
| Nitzschia vitrioides | Frenguelli | image |
| Nitzschia vivax f. minor | Grunow in Van Heurck | Syn. Diat. Belg.: | pl. LXII: fig. 2 | 1881 |
| Nitzschia vivax var. elongata | Hantzsch | Hedwigia | 2{6}: 35, pl. VI: fig. 5 | 1860 |
| Nitzschia vivax var. hyperborea | Grunow | image |
| Nitzschia vivax var. japonica | Skvortzov | image |
| Nitzschia vivax | W. Smith | Syn. Brit. Diat. | 1: 41, pl. XXXI: fig. 267 | 1853 |
| Nitzschia vixnegligenda | H. Lange-Bertalot & G. Hofmann in U. Rumrich, H. Lange-Bertalot, & M. Rumrich | Iconogr. Diatomol. | 9: 190, pl. 173: figs. 1-13 | 2000 |
| Nitzschia vixpalea | H. Lange-Bertalot & M. Werum | Lauterbornia | 78: 127, pls. 3, 4 | 2014 |
| Nitzschia voigtii | Meister | image |
| Nitzschia volcanica | H.E. Sovereign | Trans. Amer. Microscop. Soc. | 79: 345 | 1960 |
| Nitzschia volcanica | H.E. Sovereign | Trans. Amer. Microscop. Soc. | 77: 127, pl. IV: figs. 69-77 | 1958 |
| Nitzschia volcanica | Sovereign | image |
| Nitzschia voltaensis | Foged | image |
| Nitzschia volvendirostrata | M.P. Ashworth, P. Dabek, & A. Witkowski in Witkowski et al. | J. Coastal Res. | 74(special issue): 188, figs. 13a-e | 2016 |
| Nitzschia vonhauseniae_('von | Hauseniae') Cholnoky | image |
| Nitzschia vulpecula | Giffen | image |
| Nitzschia vulpeculoides | Giffen | image |
| Nitzschia wallichiana | Petit | image |
| Nitzschia wankaremae | Cleve | image |
| Nitzschia wardhensis | Sarode & Kamat | image |
| Nitzschia weaveri | Ciesielski | image |
| Nitzschia weaveri | P.F. Ciesielski | Initial Rep. Deep Sea Drilling Project | 71: 655, pl. 1: figs. 1-10 | 1983 |
| Nitzschia weissflogii | Grunow | image |
| Nitzschia weissflogii var. interrupta | Grunow | image |
| Nitzschia weissflogii var. interrupta | Grunow | image |
| Nitzschia weissflogii var. sparsa | Grunow | image |
| Nitzschia weissflogii var. sparsa | Grunow | image |
| Nitzschia weissflogii var. subglabra | Grunow | image |
| Nitzschia westiorum_('westii') | D.E. Kellogg, M. Stuiver, T.B. Kellogg, & G.H. Denton | Palaeogeography, Palaeoclimatology & Palaeoecology | 30: 185 | 1980 |
| Nitzschia williamsii | B. Alakananda, P.B. Hamilton & B. Karthick in Alakananda et al. | Phytotaxa | 54: 19, figs. 27-53 | 2012 |
| Nitzschia wilmotteana | S. Hamsher, K. Kopalová, J.P. Kociolek, R. Zidarova, & B. Van de Vijver | Fottea, Olomouc | 16: 97, figs. 202-218 | 2016 |
| Nitzschia wipplingeri | Cholnoky | image |
| Nitzschia witkowskii | D. Metzeltin & H. Lange-Bertalot in H. Lange-Bertalot (ed.) | Iconographia Diatomologica | 5: 157, pl. 206: fig. 7 | 1998 |
| Nitzschia wodensis | Carter | image |
| Nitzschia woltereckii_('Wolterecki') | Hustedt | image |
| Nitzschia woltereckoides | H.P. Gandhi ex Karthick in Guiry et al. | Notulae algarum | 133: 7, description and illustration in Gandhi (1998: 75, pl. III: figs. 174, 175) | 2020 |
| Nitzschia woltereckoides | H.P. Gandhi | Fresh-water Diatoms Central Gujarat: | 75, pl. III: figs. 174, 175 | 1998 |
| Nitzschia wuellerstorffii | Lange-Bertalot | image |
| Nitzschia yalahau | E. Novelo, R. Tavera, & C. Ibarra | Bibliotheca Diatomol. | 54: 76, pl. 19.1 | 2007 |
| Nitzschia yunchengensis | S.Q. Xie & T. Li | Acta Phytotax. Sin. | 32: 273, pl. 1 | 1994 |
| Nitzschia zabelinae | Skvortzov | image |
| Nitzschia zabelinae var. latior | Skvortzov | image |
| Nitzschia zabelini | Skvortzov mscr. | image |
| Nitzschia zabelini var. hinganica | Skvortzov | image |
| Nitzschia zahlbruckneri_('zahlbrucknerrii') | Pantocsek | image |
| Nitzschia zebuana | A. Mann | Bull. U.S. Natl. Mus. | 100{6}: 129, pl. 28: fig. 7 | 1925 |
| Nitzschia zebuana | Mann | image |
| Nitzschia zululandica | Cholnoky | image |
| NITZSCHIACEAE | Karsten | image |
| NITZSCHIACEAE | Lemmermann | image |
| PSEUDO-NITZSCHIA | H. Peragallo | image |
| Pseudo-nitzschia abrensis | E. Pérez-Aicua & L. Orive in Orive et al. | J. Phycol. | 49: 1198, figs. 3A-M | 2013 |
| Pseudo-nitzschia americana | (G.R. Hasle) G.A. Fryxell in Hasle | Beih. Nova Hedwigia | 106: 318 | 1993 |
| Pseudo-nitzschia antarctica | Manguin | image |
| Pseudo-nitzschia arctica | I. Percopo & D. Sarno in Percopo et al. | J. Phycol. | 52: 187, fig. 1A-J | 2016 |
| Pseudo-nitzschia arenysensis | S. Quijano-Scheggia, E. Garcés, & N. Lundholm in S. Quijano-Scheggia et al. | Phycologia | 48: 506, figs. 30-34 | 2009 |
| Pseudo-nitzschia australis | Frenguelli | Rev. Mus. La Plata, n.s., Bot. | 2: 217, pl. II: fig. 13 | 1939 |
| Pseudo-nitzschia barkleyi | (Hustedt) Manguin | image |
| Pseudo-nitzschia barkleyi var. obtusa | Manguin | image |
| Pseudo-nitzschia batesiana | H.C. Lim, S.T. Teng, C.P. Leaw & P.T. Lim | J. Phycol. | 49: 904, fig. 1 | 2013 |
| Pseudo-nitzschia bipertita | S.T. Teng, H.C. Lim, & C.P. Leaw in Teng et al. | J. Phycol. | 52: 975, fig. 3A-J | 2016 |
| Pseudo-nitzschia brasiliana | N. Lundholm, G.R. Hasle, & G.A. Fryxell in N. Lundholm, G.R. Hasle, G.A. Fryxell, & P.E. Hargraves | Phycologia | 41: 484, figs. 21-45 | 2002 |
| Pseudo-nitzschia bucculenta | F. Gai, C.K. Hedemand, N. Lundholm & Ø. Moestrup in Gai et al. | Harmful algae | 76: 87, fig. 8 | 2018 |
| Pseudo-nitzschia caciantha | N. Lundholm, Ø. Moestrup, & G. Hasle in Lundholm, Moestrup, Hasle, & Hoef-Emden | J. Phycol. | 39: 806, figs. 5 a-f, table 2 | 2003 |
| Pseudo-nitzschia calliantha | N. Lundholm, Ø. Moestrup, & G. Hasle in Lundholm, Moestrup, Hasle, & Hoef-Emden | J. Phycol. | 39: 801, figs. 2 a-g, table 2 | 2003 |
| Pseudo-nitzschia chiniana | C.X. Huang & Yang Li in Huang et al. | Harmful Algae | 84: 199, fig. 2 | 2019 |
| Pseudo-nitzschia circumpora | H.C. Lim, C.P. Leaw & P.T. Lim in H.C. Lim et al. | J. Phycol. | 48: 1239, fig. 7a-h | 2012 |
| Pseudo-nitzschia cuspidata | (G.R. Hasle) G.R. Hasle | Beih. Nova Hedwigia | 106: 318 | 1993 |
| Pseudo-nitzschia cuspidata var. manzanillensis | M. Rivera-Vilarelle & S.I. Quijano-Scheggia in Rivera-Vilarelle | Diatom Research | 33: 57, figs. 2-8 | 2018 |
| Pseudo-nitzschia dampieri | M. Mikhno, I. Percopo, D. Sarno, & P. von Dassow in von Dassow et al. | Harmful Algae | 130, 102520: 17, fig. 13 | 2023 |
| Pseudo-nitzschia decipiens | N. Lundholm & Ø. Moestrup in N. Lundholm, Ø. Moestrup, Y. Kotaki, K. Hoef-Emden, C. Scholin, & P. Miller | J. Phycol. | 42: 472, fig. 3 | 2006 |
| Pseudo-nitzschia delicatissima | (Cleve) Heiden | image |
| Pseudo-nitzschia dolorosa | N. Lundholm & Ø. Moestrup in N. Lundholm, Ø. Moestrup, Y. Kotaki, K. Hoef-Emden, C. Scholin, & P. Miller | J. Phycol. | 42: 470, fig. 2 | 2006 |
| Pseudo-nitzschia fossilis | Frenguelli | Darwiniana | 9: 118, pl. I: figs. 6, 7 | 1949 |
| Pseudo-nitzschia fossilis var. ovalis | Frenguelli | image |
| Pseudo-nitzschia fraudulenta | (Cleve) G.R. Hasle | Beih. Nova Hedwigia | 106: 318 | 1993 |
| Pseudo-nitzschia fryxelliana | N. Lundholm in N. Lundholm et al. | J. Phycol. | 48: 442, fig. 2: figs. a-k | 2012 |
| Pseudo-nitzschia fukuyoi | H.C. Lim, S.T. Teng, C.P. Leaw & P.T. Lim | J. Phycol. | 49: 906, fig. 4 | 2013 |
| Pseudo-nitzschia galaxiae | N. Lundholm & Ø. Moestrup | Phycologia | 41: 596, figs. 1-22 | 2002 |
| Pseudo-nitzschia granii | (G.R. Hasle) G.R. Hasle | Beih. Nova Hedwigia | 106: 318 | 1993 |
| Pseudo-nitzschia hainanensis | Xiu Mei Chen & Yang Li in Chen et al. | J. Phycol. | 57: 337, fig. 2 | 2020 |
| Pseudo-nitzschia hallegraeffii | P.A. Ajani, A. Verma & S.A. Murray in Ajani et al. | PLoS ONE | 13{4}: 7, fig. 2 | 2018 |
| Pseudo-nitzschia hasleana | N. Lundholm in N. Lundholm et al. | J. Phycol. | 48: 439, fig. 1: a-m | 2012 |
| Pseudo-nitzschia heimii | Manguin | image |
| Pseudo-nitzschia hustedtii_('hustedti') | Meister | image |
| Pseudo-nitzschia inflatula | (G.R. Hasle) G.R. Hasle | Beih. Nova Hedwigia | 106: 319 | 1993 |
| Pseudo-nitzschia kodamae | S.T. Teng, H.C. Lim, C.P. Leaw & P.T. Lim | Harmful Algae | 34: 19, fig. 2 | 2014 |
| Pseudo-nitzschia limii | S.T. Teng, H.C. Lim, & C.P. Leaw in Teng et al. | J. Phycol. | 52: 979, fig. 5A-J | 2016 |
| Pseudo-nitzschia linea | N. Lundholm, G.R. Hasle, & G.A. Fryxell in N. Lundholm, G.R. Hasle, G.A. Fryxell, & P.E. Hargraves | Phycologia | 41: 487, figs. 46-58 | 2002 |
| Pseudo-nitzschia lineola | (Cleve) G.R. Hasle | Beih. Nova Hedwigia | 106: 319 | 1993 |
| Pseudo-nitzschia lundholmiae | H.C. Lim, S.T. Teng, C.P. Leaw & P.T. Lim | J. Phycol. | 49: 905, fig. 3 | 2013 |
| Pseudo-nitzschia mannii | A. Amato & M. Montresor | Phycologia | 47: 490, figs. 1-5 | 2008 |
| Pseudo-nitzschia micropora | K. Priisholm, Ø. Moestrup, & N. Lundholm | Diatom Research | 17: 155 | 2002 |
| Pseudo-nitzschia micropora | K. Priisholm, Ø. Moestrup, & N. Lundholm in N. Lundholm, N. Daugbjerg, & Ø. Moestrup | Eur. J. Phycol. | 37: 117 (Table 1), 119 (Table 2) | 2002 |
| Pseudo-nitzschia multiseries | (G.R. Hasle) G.R. Hasle | J. Phycol. | 31: 430 | 1995 |
| Pseudo-nitzschia multistriata | (H. Takano) H. Takano | Diatom | 10: 74 | 1995 |
| Pseudo-nitzschia nanaoensis | Yang Li & H.C. Dong in Li et al. | J. Phycol. | 54: 918, figs. 1, 2 | 2018 |
| Pseudo-nitzschia obtusa | (G.R. Hasle) G.R. Hasle & N. Lundholm | Phycologia | 44: 614 | 2005 |
| Pseudo-nitzschia plurisecta | E. Orive & L. Pérez-Aicua in Orive et al. | J. Phycol. | 49: 1196, figs. 2A-L | 2013 |
| Pseudo-nitzschia prolongatoides | (G.R. Hasle) G.R. Hasle | Beih. Nova Hedwigia | 106: 319 | 1993 |
| Pseudo-nitzschia pseudodelicatissima | (G.R. Hasle) G.R. Hasle | Beih. Nova Hedwigia | 106: 319 | 1993 |
| Pseudo-nitzschia pungens | (Grunow) G.R. Hasle | Beih. Nova Hedwigia | 106: 319 | 1993 |
| Pseudo-nitzschia pungens f. multiseries | (G.R. Hasle) G.R. Hasle | Beih. Nova Hedwigia | 106: 319 | 1993 |
| Pseudo-nitzschia pungens var. atlantica | (Cleve) J.L. Moreno & S. Licea in Moreno et al. | Diatomeas del Golfo de California: | 118 | 1997 |
| Pseudo-nitzschia pungens var. aveirensis | Lundholm, Churro, Carreira & Calado in C. Churro et al. | Diatom Research | 24: 48, figs. 47-51 | 2009 |
| Pseudo-nitzschia pungens var. cingulata | M.C. Villac in M.C. Villac & G.A. Fryxell | Phycologia | 37: 271, figs. 6-15, 20-30 | 1998 |
| Pseudo-nitzschia pungiformis | (G.R. Hasle) G.R. Hasle | Beih. Nova Hedwigia | 106: 319 | 1993 |
| Pseudo-nitzschia qiana | C.X. Huang & Yang Li in Huang et al. | Harmful Algae | 84: 200, fig. 3 | 2019 |
| Pseudo-nitzschia roundii | D.U. Hernández-Becerril in D.U. Hernandez-Becerril & E.M. Díaz-Almeyda | Beih. Nova Hedwigia | 130: 299, figs. 19-27 | 2006 |
| Pseudo-nitzschia sabit | S.T. Teng, H.C. Lim, P.T. Lim & C.P. Leaw in Teng et al. | J. Phycol. | 51: 709, figs. 1A-M, 2A-I | 2015 |
| Pseudo-nitzschia seriata f. obtusa | (G.R. Hasle) G.R. Hasle | Beih. Nova Hedwigia | 106: 319 | 1993 |
| Pseudo-nitzschia simulans | Y. Li et al. | Harmful Algae | 67: 124, fig. 2 | 2017 |
| Pseudo-nitzschia subcurvata | (G.R. Hasle) G.A. Fryxell in Hasle | Beih. Nova Hedwigia | 106: 319 | 1993 |
| Pseudo-nitzschia subfraudulenta | (G.R. Hasle) G.R. Hasle | Beih. Nova Hedwigia | 106: 320 | 1993 |
| Pseudo-nitzschia subpacifica | (G.R. Hasle) G.R. Hasle | Beih. Nova Hedwigia | 106: 320 | 1993 |
| Pseudo-nitzschia taiwanensis | Xiu Mei Chen & Yang Li in Chen et al. | J. Phycol. | 57: 338, fig. 3 | 2020 |
| Pseudo-nitzschia turgidula | (Hustedt) G.R. Hasle | Beih. Nova Hedwigia | 106: 320 | 1993 |
| Pseudo-nitzschia turgiduloides | (G.R. Hasle) G.R. Hasle | image |
| Pseudo-nitzschia turgiduloides | (G.R. Hasle) G.R. Hasle | Beih. Nova Hedwigia | 106: 320 | 1993 |
| Pseudo-nitzschia turgiduloides | G.R. Hasle | Diatom Res. | 10: 357 | 1996 |
| PSEUDONITZSCHIA | Hustedt | image |
| SULCATONITZSCHIA | J.A. Nienow & A.K.S.K. PRASAD | Gulf and Caribbean Research | 32: 36 | 2021 |
| Sulcatonitzschia novossiformis | J.A. Nienow & A.K.S.K. Prasad | Gulf and Caribbean Research | 32: 36, figs. 2-8 | 2021 |