| Name | Author | Source | Citation | Year |
|---|
| Achnanthes brevipes var. fragilariiformis_('fragilariaeformis') | Kützing | image |
| Biddulphia fragilaria | (C.G. Ehrenberg) J. Ralfs | image |
| Denticella fragilaria | Ehrenberg | image |
| EUFRAGILARIA | A. Cleve-Euler | image |
| EUFRAGILARIA | F. Schütt | image |
| Eunotia pseudofragilaria | P.A. Siver, P.B. Hamilton & E.A. Morales | Arch. Hydrobiol. Suppl. | 162 (Algol. Stud. 119): 5, figs. 1k-w, 4, 5 | 2006 |
| FRAGILARIA | H.S. Lyngbye | image |
| FRAGILARIA section | EUFRAGILARIA A. Cleve-Euler | image |
| FRAGILARIA section | STAUROSIRA (C.G. Ehrenberg) J.-J. Brun | image |
| FRAGILARIA subg. ALTERASYNEDRA | Lange-Bertalot | Biblioth. Diatomol. | 27: 52 | 1993 |
| FRAGILARIA subg. CTENOPHORA | (Grunow) Lange-Bertalot | Biblioth. Diatomol. | 27: 53 | 1993 |
| FRAGILARIA subg. CTENOPHORA | (Grunow) Lange-Bertalot in Krammer & Lange-Bertalot in H. Ettl et al. (eds.) | Süsswasserfl. Mitteleuropa | 2{3}: 148 | 1991 |
| FRAGILARIA subg. STAUROSIRA | (Ehrenberg) Lange-Bertalot | Biblioth. Diatomol. | 27: 53 | 1993 |
| FRAGILARIA subg. STAUROSIRA | (Ehrenberg) Lange-Bertalot in Krammer & Lange-Bertalot in H. Ettl et al. (eds.) | Süsswasserfl. Mitteleuropa | 2{3}: 152 | 1991 |
| FRAGILARIA subg. TABULARIA | (Kützing) Lange-Bertalot | Biblioth. Diatomol. | 27: 54 | 1993 |
| FRAGILARIA subg. TABULARIA | (Kützing) Lange-Bertalot in Krammer & Lange-Bertalot in H. Ettl et al. (eds.) | Süsswasserfl. Mitteleuropa | 2{3}: 149 | 1991 |
| FRAGILARIA subgen. ULNARIA | (Kützing) H. Lange-Bertalot & P. Compère | Diatom Research | 16: 103 | 2001 |
| FRAGILARIA | | image |
| Fragilaria acerba | B.J. Cholnoky | image |
| Fragilaria acerosa | B. Van de Vijver, C.E. Wetzel, A. Jarlman & L. Ector in Van de Vijver et al. | Fottea | 22: 275, figs. 244-410 | 2022 |
| Fragilaria acidobiontica | D.F. Charles in Smol et al. | Diatoms and Lake Acidity: | 36, figs. 1, 2 | 1986 |
| Fragilaria acidoclinata | H. Lange-Bertalot & H. Hofmann | image |
| Fragilaria acidoclinata | Lange-Bertalot & Hofmann in Lange-Bertalot | Biblioth. Diatomol. | 27: 41, pl. 14: figs. 8-13 | 1993 |
| Fragilaria acidoclinata | Lange-Bertalot & Hofmann in Krammer & Lange-Bertalot in H. Ettl et al. (eds.) | Süsswasserfl. Mitteleuropa | 2{4}: pl. 82: figs. 11-13 | 1991 |
| Fragilaria aconicinnum | K.W. Estep & C.C. Remsen | image |
| Fragilaria acuta | C.G. Ehrenberg | image |
| Fragilaria acutirhombica | D. Metzeltin, H. Lange-Bertalot & N. Soninkhishig | Iconogr. Diatomol. | 20: 44, pl. 8: figs. 12-15 | 2009 |
| Fragilaria acutirostrata | D. Metzeltin & H. Lange-Bertalot in H. Lange-Bertalot (ed.) | Icon. Diatomol. | 5: 89, pl. 1: figs. 18, 19 (17, 32?); REM-pl. 2: fig. 4 | 1998 |
| Fragilaria acutiuscula | J. Pantocsek | image |
| Fragilaria adamsii | B.J. Cholnoky | image |
| Fragilaria aequalis | P.A.C. Heiberg | image |
| Fragilaria aequalis var. capitata | J. Heribaud | image |
| Fragilaria aequalis var. inaequidentata | Lagerstedt | Bih. K. Svenska Vet.-Akad. Handl. | 1{14}: 16, pl. II: fig. 1 | 1873 |
| Fragilaria aequalis var. inaequidentata | N.G.W. Lagerstedt | image |
| Fragilaria aequalis var. maeotica | J. Pantocsek | image |
| Fragilaria aequalis var. producta | Lagerstedt | Bih. K. Svenska Vet.-Akad. Handl. | 1{14}: 15, pl. I: fig. 1 | 1873 |
| Fragilaria aequalis var. producta | N.G.W. Lagerstedt | image |
| Fragilaria aethiopica | G.S. West | image |
| Fragilaria africana | F. Hustedt | image |
| Fragilaria agnesiae | M. Kahlert & F. Rimet in Kahlert et al. | Journal of Phycology | 55: 959, fig. 3 | 2019 |
| Fragilaria alpestris | Krasske in Hustedt | Rabenhorst's Krypt.-Fl., ed. 2, | 7{2}: 165, fig. 673B | 1931 |
| Fragilaria alternata | J. Frenguelli | image |
| Fragilaria amicorum | A. Witkowski & H. Lange-Bertalot | Limnologica | 23: 62, fig. 3a-k | 1993 |
| Fragilaria amphicephala | C.G. Ehrenberg | image |
| Fragilaria amphicephala | C.G. Ehrenberg | image |
| Fragilaria amphicephaloides | H. Lange-Bertalot in Hofmann, Werum, & Lange-Bertalot | Diatomeen im Süsswasser-Benthos von Mitteleuropa: | 256, pl. 7: 7-10 | 2011 |
| Fragilaria amphiceros | C.G. Ehrenberg | image |
| Fragilaria amphiceros | C.G. Ehrenberg | image |
| Fragilaria amphioxys | C.G. Ehrenberg | image |
| Fragilaria anceps | C.G. Ehrenberg | image |
| Fragilaria anceps | Ehrenberg | Abh. Königl. Akad. Wiss. Berlin, Phys. Kl. | 1841: 352, 415 | 1843 |
| Fragilaria angusta | C.G. Ehrenberg | image |
| Fragilaria angusta | Ehrenberg | Abh. Königl. Akad. Wiss. Berlin, Phys. Kl. | 1830: 62, 68, 70 | 1830 |
| Fragilaria angusta | Ehrenberg | Abh. Königl. Akad. Wiss. Berlin, Phys. Kl. | 1831: 85 | 1832 |
| Fragilaria angustata | P.T. Cleve & Grove | image |
| Fragilaria annulata | (Corda) Corda | Alman. Carlsbad | 10: 194 | 1840 |
| Fragilaria antarctica | A. Schwarz | image |
| Fragilaria antarctica | Castracane | image |
| Fragilaria antarctica f. lata | H.F. Van Heurck | image |
| Fragilaria aquaplus | H. Lange-Bertalot & S. Ulrich | Lauterbornia | 78: 32, pl. 13: figs. 15-19; pl. 14: figs. 9-14 | 2014 |
| Fragilaria araulensis | J. Heribaud | image |
| Fragilaria arctica | (Grunow) M. Poulin, L. Bérard-Therriault, & A. Cardinal | Naturaliste Canad. | 111: 351 | 1984 |
| Fragilaria arctica | A. Grunow | image |
| Fragilaria arcuata | J. Schumann | image |
| Fragilaria arcus | (Ehrenberg) Cleve | Bih. Kongl. Svenska Vetensk.-Akad. Handl. | 24(Afd. III, 2): 9 | 1898 |
| Fragilaria arcus | (F.T. Kützing) Cleve | image |
| Fragilaria arcus var. amphioxys_('amphiozys') | (Rabenhorst) A. Cleve-Euler | Kungliga Svenska Vetenskapsakademiens Handlingar, ser. 4 | 4{1}: 54 | 1953 |
| Fragilaria arcus var. recta | Cleve | image |
| Fragilaria asiatica | F. Hustedt | image |
| Fragilaria asterionelloides | A. Tuji & D.M. Williams | Bull. Natl. Mus. Nat. Sci., Ser. B, | 46: 46, figs. 1, 2, 5-18 | 2017 |
| Fragilaria atomus | F. Hustedt | image |
| Fragilaria atomus | Hustedt | Rabenhorst's Krypt.-Fl. Deutschl., 2.Aufl., | 7{2}: 164, fig. 672 B | 1931 |
| Fragilaria aurea | D. Carmichael | image |
| Fragilaria aurivilii | Cleve | image |
| Fragilaria australis | C.G. Ehrenberg | image |
| Fragilaria bacillum | C.G. Ehrenberg | image |
| Fragilaria bacillum | M. Peragallo | image |
| Fragilaria baculus | E.V. Østrup | image |
| Fragilaria baculus | E.V. Østrup | image |
| Fragilaria bahlsiana | B. Van de Vijver, C.E. Wetzel & L. Ector in Van de Vijver et al. | Fottea | 22: 115, figs. 263-282 | 2022 |
| Fragilaria balatonis | J. Pantocsek | image |
| Fragilaria barbararum | A. Witkowski, D. Metzeltin, & H. Lange-Bertalot apud D. Metzeltin & A. Witkowski in H. Lange-Bertalot (ed.) | Iconographia diatomologica | 4: 15, pl. 48: figs. 32-36 [36 with ?]; pl. 73: figs. 6, 8, 9 | 1996 |
| Fragilaria barbatula | (Kützing) Lange-Bertalot | Biblioth. Diatomol. | 27: 54 | 1993 |
| Fragilaria battarbeeana | B. Van de Vijver, M. Kelly, C.E. Wetzel & L. Ector in Van de Vijver et al. | Fottea | 21: 144, figs. 200-223 | 2021 |
| Fragilaria berolinensis | (Lemmermann) Lange-Bertalot | Biblioth. Diatomol. | 27: 43 | 1993 |
| Fragilaria bicapitata | A. Mayer | Denkschr. Bayer. Bot. Ges. | 13: 21, pl. I: fig. 26 | 1917 |
| Fragilaria bicapitata | Ant. Mayer | image |
| Fragilaria bicapitata var. curta | A. Mayer | Denkschr. K. Bayer. Bot. Ges. | 13: 22, pl. I: fig. 27 | 1917 |
| Fragilaria bicapitata var. inflata | A. Mayer | Denkschr. K. Bayer. Bot. Ges. | 13: 110, pl. I: figs. 12-14 | 1917 |
| Fragilaria bicapitata var. lineolata | A.I. Moissejeva | image |
| Fragilaria bicapitata var. sigmoidea | H. Schimanski | image |
| Fragilaria biceps | (Kützing) Lange-Bertalot | Biblioth. Diatomol. | 27: 43 | 1993 |
| Fragilaria biceps | (Kützing) Lange-Bertalot in Krammer & Lange-Bertalot in H. Ettl et al. (eds.) | Süsswasserfl. Mitteleuropa | 2{3}: 146 | 1991 |
| Fragilaria biceps | C.G. Ehrenberg | image |
| Fragilaria bidens f. major | A. Grunow | image |
| Fragilaria bidens f. minor | A. Grunow | image |
| Fragilaria bidens | P.A.C. Heiberg | image |
| Fragilaria bidens var. obsoleta | A. Cleve-Euler | image |
| Fragilaria bidens var. paucistriata | A. Cleve-Euler | image |
| Fragilaria bigibba | J. Heribaud | image |
| Fragilaria billingsii | S. Wengrat, C.E. Wetzel & E. Morales in Wengrat et al. | Phytotaxa | 270: 196, figs. 22-41 | 2016 |
| Fragilaria binalis | C.G. Ehrenberg | image |
| Fragilaria binalis | Ehrenberg | Mikrogeol., Atlas: | 12, pl. XIV: fig. 52; pl. I:III: fig. 9 | 1854 |
| Fragilaria binodis | (C.G. Ehrenberg) C.G. Ehrenberg | image |
| Fragilaria binodis | C.G. Ehrenberg | image |
| Fragilaria binodis | Ehrenberg | Mikrogeol., Atlas: | 12, pl. V.II: fig. 26; pl. VI:I: fig. 43; pl. XI: fig. 15 | 1854 |
| Fragilaria binodis | Pantocsek | Kieselalgen des Balaton | 2:2:1: 78, pl. 9: fig. 223 | 1902 |
| Fragilaria binodis var. obliqua | J.-J. Brun & J. Heribaud | image |
| Fragilaria bipunctata | (C.G. Ehrenberg) C.G. Ehrenberg | image |
| Fragilaria bipunctata | (Ehrenberg) Ehrenberg | Symb. Phys. | 4 (Anim. Evertebr.): [13] | 1831 |
| Fragilaria bipunctata | C.G. Ehrenberg | image |
| Fragilaria birostris | C.G. Ehrenberg | image |
| Fragilaria bituminosa | J. Pantocsek | image |
| Fragilaria bituminosa var. curta | J. Pantocsek | image |
| Fragilaria bituminosa var. elongata | J. Pantocsek | image |
| Fragilaria bituminosa var. minor | J. Pantocsek | image |
| Fragilaria bituminosa var. perlonga | J. Pantocsek | image |
| Fragilaria bituminosa var. validior | J. Pantocsek | image |
| Fragilaria bivittata | J. Pantocsek | image |
| Fragilaria bongrainii | M. Peragallo | image |
| Fragilaria bongrainii var. planctonica | (Heiden) J. Frenguelli & H.A. Orlando | Publ. Inst. Antárt. Argent. | 5: 106 | 1958 |
| Fragilaria braunii | F. Hustedt | image |
| Fragilaria braunii | Hustedt | Botaniska Notiser | 1952: 379, figs. 41, 42 | 1952 |
| Fragilaria brevis | J.P.F.C. Montagne | image |
| Fragilaria brevistriata | A. Grunow | image |
| Fragilaria brevistriata f. australis | J.R. Carter | image |
| Fragilaria brevistriata f. curta | B.V. Skvortzov | image |
| Fragilaria brevistriata f. elongata | G.S. Venkataraman | image |
| Fragilaria brevistriata f. intermedia | E.E. Manguin | image |
| Fragilaria brevistriata var. acuta | A. Mayer | Denkschr. K. Bayer. Bot. Ges. | 13: 20, pl. I: fig. 13 | 1917 |
| Fragilaria brevistriata var. bigibba | C.C. Jao | image |
| Fragilaria brevistriata var. binodis | A. Cleve-Euler | image |
| Fragilaria brevistriata var. binodis | Cleve-Euler | Acta Geogr. [Soc. Geogr. Fenn.] | 10{1}: 9, pl. IX: fig. 223 in Pantocsek | 1948 |
| Fragilaria brevistriata var. capitata | Héribaud | Diat. Foss. Auvergne | 2: 92, pl. XII: fig. 18 | 1903 |
| Fragilaria brevistriata var. capitata | J. Heribaud | image |
| Fragilaria brevistriata var. capitata | Manguin | Ann. Géol. Service des Mines | 18: 95, pl. II: fig. 28 | 1949 |
| Fragilaria brevistriata var. constricta | G. Krasske | image |
| Fragilaria brevistriata var. constricta | V.S. Poretzky in Proshkina-Lavrenko & Sheshukova (eds.) | Diatomovyi Sbornik: | 146, fig. 4 | 1953 |
| Fragilaria brevistriata var. elliptica | Héribaud | Diat. Foss. Auvergne | 2: 74, pl. X: fig. 11 | 1903 |
| Fragilaria brevistriata var. elliptica | J. Heribaud | image |
| Fragilaria brevistriata var. fossilis | J. Pantocsek | image |
| Fragilaria brevistriata var. inflata | (J. Pantocsek) F. Hustedt | image |
| Fragilaria brevistriata var. linearis | Ant. Mayer | image |
| Fragilaria brevistriata var. major | P. Fusey | image |
| Fragilaria brevistriata var. mormonorum_('mormorum') | A. Grunow | image |
| Fragilaria brevistriata var. nipponica | B.V. Skvortzov | image |
| Fragilaria brevistriata var. nipponica | Skvortzov | Philipp. J. Sci. | 61: 17, pl. 16: fig. 7 | 1936 |
| Fragilaria brevistriata var. obtusa | J. Frenguelli | image |
| Fragilaria brevistriata var. papillosa | Cleve-Euler | Kongl. Svenska Vetensk.-Akad. Handl., ser. 4, | 4{1}: 32, f. 343h-j | 1953 |
| Fragilaria brevistriata var. pusilla | A. Grunow | image |
| Fragilaria brevistriata var. subacuta | A. Grunow | image |
| Fragilaria brevistriata var. subcapitata | A. Grunow | image |
| Fragilaria brevistriata var. tibetica | K.S. Mereschkowsky | image |
| Fragilaria brevistriata var. trigibba | (J. Pantocsek) F. Hustedt | image |
| Fragilaria brevistriata var. turgida | D. McCall | image |
| Fragilaria brevistriata var. undulata | A. Mayer | Denkschr. K. Bayer. Bot. Ges. | 13: 20, pl. I: fig. 15 | 1917 |
| Fragilaria brevistriata var. vidarbhensis | P.T. Sarode & N.D. Kamat | image |
| Fragilaria bronkii_('bronkei') | A. Witkowski, H. Lange-Bertalot & D. Metzeltin | Icon. Diatomol. | 7: 48, 427, pl. 12: figs. 1-12 | 2000 |
| Fragilaria californica | A. Grunow | image |
| Fragilaria californica | Grunow in Van Heurck | Syn. Diatom. Belgique: | pl. XLIV: fig. 13 | 1881 |
| Fragilaria californica var. antarctica | M. Peragallo | image |
| Fragilaria californica var. intermedia | M. Peragallo | image |
| Fragilaria calmelsii_('calmelsi') | A. Lauby | image |
| Fragilaria campyla | (Hilse) B. Van de Vijver, W. Kusber & D.M. Williams in Van de Vijver et al. | Fottea | 22: 97 | 2022 |
| Fragilaria camtschatica | (Grunow) M. Poulin, L. Bérard-Therriault, & A. Cardinal | Naturaliste Canad. | 111: 351 | 1984 |
| Fragilaria camtschatica var. finnmarchica | (Cleve & Grunow) M. Poulin, L. Bérard-Therriault, & A. Cardinal | Naturaliste Canad. | 111: 351 | 1984 |
| Fragilaria canariensis | H. Lange-Bertalot | Biblioth. Diatomol. | 27: 43, pl. 14: figs. 1-6 | 1993 |
| Fragilaria candidagiliae_('candidagilae') | S.F.P. Almeida, C. Delgado, M.H. Novais & S. Blanco in Delgado et al. | Phytotaxa | 231: 3, figs. 2-39 | 2015 |
| Fragilaria capensis | A. Grunow | image |
| Fragilaria capensis | B.J. Cholnoky | image |
| Fragilaria capensis | G. Karsten | image |
| Fragilaria capensis | Grunow | Verh. K.K. Zool.-Bot. Ges. Wien | 13: 143, pl. 14: fig. 5 | 1863 |
| Fragilaria capitata | (C.G. Ehrenberg) H. Lange-Bertalot | image |
| Fragilaria capitata | C.G. Ehrenberg | image |
| Fragilaria capitellata | (A. Grunow) J.B. Petersen | image |
| Fragilaria capitellata | A. Lauby | image |
| Fragilaria capitellata var. petersenii_('Peterseni') | N. Foged | image |
| Fragilaria capucina | Desmazières | Plantes Cryptogames du Nord de la France, ed. 1, | 10: no. 453 | 1825 |
| Fragilaria capucina f. distans | A. Mayer | Ber. Bayer. Bot. Ges. | 22: 56, pl. I: fig. 49 | 1937 |
| Fragilaria capucina f. lanceolata-baikali | R.J. Flower & D.M. Williams in R.J. Flower, G. Pomazkina, E. Rodionova, & D.M. Williams | Proc. Int. Diat. Symp. | 17: 92, figs. 14, 16 | 2004 |
| Fragilaria capucina f. neogena | (Grunow) J.-J. Symoens in Symoens & Van der Werff | Bull. Jard. Bot. Nat. Belg. | 65: 3449 | 1996 |
| Fragilaria capucina f. sublanceolata | E.E. Manguin | image |
| Fragilaria capucina f. sublanceolata-baikali | R.J. Flower & D.M. Williams in R.J. Flower, G. Pomazkina, E. Rodionova, & D.M. Williams | Proc. Int. Diat. Symp. | 17: 92, figs. 13, 15 | 2004 |
| Fragilaria capucina | J.B.H.J. Desmazières | image |
| Fragilaria capucina subsp. amphicephala | (F.T. Kützing) H. Lange-Bertalot | image |
| Fragilaria capucina subsp. amphicephala | (Kützing) H. Lange-Bertalot | Biblioth. Diatomol. | 27: 44 | 1993 |
| Fragilaria capucina subsp. austriaca | (A. Grunow) H. Lange-Bertalot | image |
| Fragilaria capucina subsp. austriaca | (Grunow) Lange-Bertalot | Biblioth. Diatomol. | 27: 45 | 1993 |
| Fragilaria capucina subsp. rumpens | (F.T. Kützing) H. Lange-Bertalot | image |
| Fragilaria capucina subsp. rumpens | (Kützing) Lange-Bertalot | Biblioth. Diatomol. | 27: 45 | 1993 |
| Fragilaria capucina var. acuminata | A. Grunow | image |
| Fragilaria capucina var. acuta | (C.G. Ehrenberg) G.L. Rabenhorst | image |
| Fragilaria capucina var. amphicephala | (Kützing) Lange-Bertalot ex L.N. Bukhtiyarova | Algologia | 5: 417 | 1995 |
| Fragilaria capucina var. amphicephala | (Kützing) Lange-Bertalot in Krammer & Lange-Bertalot in H. Ettl et al. (eds.) | Süsswasserfl. Mitteleuropa | 2{3}: 125 | 1991 |
| Fragilaria capucina var. arctica | A. Cleve | image |
| Fragilaria capucina var. austriaca | (A. Grunow) H. Lange-Bertalot | image |
| Fragilaria capucina var. californica | K.S. Mereschkowsky | image |
| Fragilaria capucina var. constricta | (C.G. Ehrenberg) A. Grunow | image |
| Fragilaria capucina var. contracta | (J. Schumann) J.-J. Brun | image |
| Fragilaria capucina var. corrugata | (F.T. Kützing) A. Grunow | image |
| Fragilaria capucina var. courtallensis | V.B. Krishnamurthy | image |
| Fragilaria capucina var. delicatula | A. Cleve-Euler | image |
| Fragilaria capucina var. genuina | A. Grunow | image |
| Fragilaria capucina var. gracilis | (E.V. Østrup) F. Hustedt | image |
| Fragilaria capucina var. inaequidentata | N.G.W. Lagerstedt | image |
| Fragilaria capucina var. lanceolata | A. Grunow | image |
| Fragilaria capucina var. longissima | Ant. Mayer | image |
| Fragilaria capucina var. major | W. Smith | image |
| Fragilaria capucina var. mesolepta | (G.L. Rabenhorst) G.L. Rabenhorst | image |
| Fragilaria capucina var. mesolepta | (Rabenhorst) Rabenhorst | Fl. Eur. Alg. | I: 118 | 1864 |
| Fragilaria capucina var. minima | G.L. Rabenhorst | image |
| Fragilaria capucina var. parva | G.L. Rabenhorst | image |
| Fragilaria capucina var. producta | (N.G.W. Lagerstedt) A. Cleve | image |
| Fragilaria capucina var. rumpens | (F.T. Kützing) H. Lange-Bertalot | image |
| Fragilaria capucina var. rumpens | (Kützing) Lange-Bertalot ex L.N. Bukhtiyarova | Algologia | 5: 417 | 1995 |
| Fragilaria capucina var. rumpens | (Kützing) Lange-Bertalot in Krammer & Lange-Bertalot in H. Ettl et al. (eds.) | Süsswasserfl. Mitteleuropa | 2{3}: 122 | 1991 |
| Fragilaria capucina var. sublinearis | E. Manguin ex Kociolek & Reviers | Cryptogamie: Algologie | 17: 177 | 1996 |
| Fragilaria capucina var. sublinearis | E. Manguin | Rev. Alg. n.s. | 5: 269, pl. I(26): fig. 7 | 1961 |
| Fragilaria capucina var. sublinearis | E.E. Manguin | image |
| Fragilaria capucina var. tenuis | (C.A. Agardh) L.A. Brebisson | image |
| Fragilaria capucina var. vaucheriae | (F.T. Kützing) H. Lange-Bertalot | image |
| Fragilaria carmichaelii | Harvey | image |
| Fragilaria carnea | H.C. Lyngbye | image |
| Fragilaria cassubica | A. Witkowski & H. Lange-Bertalot | Limnologica | 23: 65, fig. 4 | 1993 |
| Fragilaria castracanei | De Toni | image |
| Fragilaria castracanei var. asymmetrica | E.J. Lemmermann | image |
| Fragilaria castracanei var. brevior | E.J. Lemmermann | image |
| Fragilaria castracanei var. elliptica | Peragallo | image |
| Fragilaria catena | C.G. Ehrenberg | image |
| Fragilaria catena | Ehrenberg | Ber. K. Akad. Wiss. Berlin | 1841: 144 | 1841 |
| Fragilaria catenarinoi | B. Van de Vijver & D.M. Williams in Van de Vijver et al., | Fottea | 23: 84, figs. 338-374 | 2023 |
| Fragilaria charcotii | M. Peragallo | Deux. Expéd. Antarct. Franc\*,. (1908-1910) ... Charcot. Diatomées: | 68, pl. III: fig. 5 | 1921 |
| Fragilaria chilensis | (Krasske) H. Lange-Bertalot in H. Lange-Bertalot et al. | Iconographia Diatomologica | 3: 50 | 1996 |
| Fragilaria clevei | J. Pantocsek | image |
| Fragilaria clevei var. linearis | Pantocsek | Pozsyonyi Orvos-Termeszettudomanyi Egyesulet Kozlemenyei | 23: 30, pl. II: fig. 77 | 1913 |
| Fragilaria coccochroma | K.S. Mereschkowsky | image |
| Fragilaria coccochroma | K.S. Mereschkowsky | image |
| Fragilaria coccochromatica | K.S. Mereschkowsky | image |
| Fragilaria coccochromatica var. decephala | K.S. Mereschkowsky | image |
| Fragilaria cochabambina | E. Morales in Morales, Fernández, & Kociolek | Acta Bot. Croat. | 68: 272, figs. 2-7, 15-20 | 2009 |
| Fragilaria confervoides | R.K. Greville | image |
| Fragilaria confusa | B. Van de Vijver, E. Tusset, D.M. Williams & L. Ector | Phytotaxa | 471: 5, figs. 49-80 | 2020 |
| Fragilaria constricta | C.G. Ehrenberg | image |
| Fragilaria constricta | Ehrenberg | Ber. K. Akad. Wiss. Berlin | 1841: 143 | 1841 |
| Fragilaria constricta var. trinodis | F. Hustedt | image |
| Fragilaria constricta var. trinodis | Hustedt | Rabenhorst's Krypt.-Fl. Deutschl., 2.Aufl., | 7{2}: 166, fig. 674f | 1931 |
| Fragilaria construens | (C.G. Ehrenberg) A. Grunow | image |
| Fragilaria construens f. amphioxys | Torka | Zeitschr. Naturwiss. Abt. deutsch. Ges. Kunst. Wissensch. Posen. Botanik | 15: 134, fig. 3a | 1909 |
| Fragilaria construens f. arcus | Y. Iwahashi | image |
| Fragilaria construens f. biceps | (Ehrenberg) Ströse | Bacill. Klieken: | 13 | 1884 |
| Fragilaria construens f. borealis | N. Foged | Biblioth. Phycol. | 15: 56, pl. III: fig. 6 | 1974 |
| Fragilaria construens f. cruciata | A. Cleve-Euler | image |
| Fragilaria construens f. extrema | A. Mayer | Ber. Bayer. Bot. Ges. | 22: 69, pl. III: figs. 46-49 | 1937 |
| Fragilaria construens f. fossilis | Manguin | Ann. Géol. Service des Mines | 18: 95, pl. II: fig. 29 | 1949 |
| Fragilaria construens f. gibba | F. Hustedt | image |
| Fragilaria construens f. gracilis | G.L. Rabenhorst | image |
| Fragilaria construens f. inaequilatera | A. Cleve-Euler | image |
| Fragilaria construens f. lata | A. Mayer | Ber. Bayer. Bot. Ges. | 22: 69, pl. III: fig. 50 | 1937 |
| Fragilaria construens f. pusilla | (Grunow) A. Mayer | Ber. Bayer. Bot. Ges. | 22: 69 | 1937 |
| Fragilaria construens f. rhomboidalis | (A. Mayer) A. Mayer | Ber. Bayer. Bot. Ges. | 22: 69 | 1937 |
| Fragilaria construens f. robusta | P. Fusey | image |
| Fragilaria construens f. rotundata | V.S. Poretzky in Proshkina-Lavrenko & Sheshukova (eds.) | Diatomovyi Sbornik: | 30, fig. 2 | 1953 |
| Fragilaria construens f. subconstricta | A. Cleve-Euler | image |
| Fragilaria construens f. subrotunda | A. Mayer | Denkschr. K. Bayer. Bot. Ges. | 13: 25, pl. I: fig. 22 | 1917 |
| Fragilaria construens f. undulata | Ant. Mayer | image |
| Fragilaria construens var. biceps | (Ehrenberg) A. Mayer | Ber. Bayer. Bot. Ges. | 22: 69 | 1937 |
| Fragilaria construens var. bigibba | A. Cleve | image |
| Fragilaria construens var. binodis | (C.G. Ehrenberg) A. Grunow | image |
| Fragilaria construens var. capitata | Brun & Héribaud in Héribaud | Diat. Auvergne: | 144, pl. I: fig. 2 | 1893 |
| Fragilaria construens var. capitata | J.-J. Brun & J. Heribaud | image |
| Fragilaria construens var. circularis_('circulare') | J. Heribaud | image |
| Fragilaria construens var. exigua | (W. Smith) F. Hustedt | image |
| Fragilaria construens var. exigua | (W. Smith) Hustedt | Hedwigia | 63: 137, adnot. | 1921 |
| Fragilaria construens var. fossilis | H.P. Gandhi ex Karthick in Guiry et al. | Notulae algarum | 133: 2, description and illustration in Gandhi (1998: 297, pl. 4: figs. 5-8) | 2020 |
| Fragilaria construens var. fossilis | H.P. Gandhi | Fresh-water Diatoms Central Gujarat: | 297, pl. 4: figs. 5-8 | 1998 |
| Fragilaria construens var. genuina | A. Grunow | image |
| Fragilaria construens var. indica | H.P. Gandhi ex Karthick in Guiry et al. | Notulae algarum | 133: 2, description and illustration in Gandhi (1998: 298, pl. 4: figs. 9-15) | 2020 |
| Fragilaria construens var. indica | H.P. Gandhi | Fresh-water Diatoms Central Gujarat: | 298, pl. 4: figs. 9-15 | 1998 |
| Fragilaria construens var. javanica | F. Hustedt | image |
| Fragilaria construens var. lunata | J.L. Stone in McLaughlin & Stone | Beih. Nova Hedwigia | 82: 44, pl. 5: fig. 78 | 1986 |
| Fragilaria construens var. major | A. Cleve-Euler | image |
| Fragilaria construens var. meniscus | A. Cleve-Euler | image |
| Fragilaria construens var. minor | J. Frenguelli | image |
| Fragilaria construens var. minuta | Tempère & H. Peragallo | Diat. Coll.: | 47, slide no. 89 | 1889 |
| Fragilaria construens var. nipponica | B.V. Skvortzov | image |
| Fragilaria construens var. oblonga | A. Grunow | image |
| Fragilaria construens var. ovata | R.B. McLaughlin & J.R. Stone | Microscopy, The Journal of the Quekett Microscopical Club | 32: 517, fig. 120 | 1975 |
| Fragilaria construens var. pumila | A. Grunow | image |
| Fragilaria construens var. pumila | Grunow in Van Heurck | Syn. Diat. Belgique: | pl. XLV: fig. 21A | 1881 |
| Fragilaria construens var. pusilla | A. Grunow | image |
| Fragilaria construens var. pusilla | Grunow | Verh. K. Zool.-Bot. Ges. Wien | 12: 371, no fig. | 1862 |
| Fragilaria construens var. rhomboidalis | A. Mayer | Denkschr. K. Bayer. Bot. Ges. | 13: 21, pl. I: fig. 20 | 1917 |
| Fragilaria construens var. semibinodis | E.V. Østrup | image |
| Fragilaria construens var. sinuata | H. Reichelt | image |
| Fragilaria construens var. subsalina | Hustedt | Mitt. Geogr. Ges. u Naturhist. Mus. Lübeck, ser. 2, | 30: 106, figs. 5-8 | 1925 |
| Fragilaria construens var. trigibba | (J. Pantocsek) J. Frenguelli | image |
| Fragilaria construens var. trigona | (Grunow) A. Cleve-Euler | Sveriges Geologiska Undersökning, Ser. C, | 309: 70 | 1922 |
| Fragilaria construens var. trinodis | G. Istvanfy de Csík Madefalva | image |
| Fragilaria construens var. trinodis | Heiden | Mitth. Mecklenb. Geol. Landesanst. | 10{21}: 14, fig. 20 | 1900 |
| Fragilaria construens var. triundulata | H. Reichelt | image |
| Fragilaria construens var. triundulata | Reichelt ex Østrup in Hartz & Østrup | Danmarks Geol. Undersog., Raekke 2, | 9: 57, pl. II: fig. 15 | 1899 |
| Fragilaria construens var. venter | (C.G. Ehrenberg) A. Grunow | image |
| Fragilaria contracta | J. Schumann | image |
| Fragilaria corrugata | F.T. Kützing | image |
| Fragilaria costata | (Z. R\*veháková) H. Lange-Bertalot in Lange-Bertalot et al. | Acta Biol. Benrodis | 3: 120 | 1991 |
| Fragilaria costata | F. Meister | image |
| Fragilaria costata | M. Peragallo | image |
| Fragilaria crassa | D. Metzeltin & H. Lange-Bertalot in H. Lange-Bertalot (ed.) | Iconographia Diatomologica | 5: 89, pl. 1: figs. 20-23; REM-pl. 2: fig. 1 | 1998 |
| Fragilaria crassirhombica | D. Metzeltin, H. Lange-Bertalot & N. Soninkhishig | Iconogr. Diatomol. | 20: 45, pl. 8: figs. 20-26 | 2009 |
| Fragilaria crenophila | P. Rioual in Rioual et al. | Phytotaxa | 329: 44 | 2017 |
| Fragilaria crenophila var. sinensis | Rioual in Rioual et al. | Phytotaxa | 329: 45, figs. 1-15 | 2017 |
| Fragilaria cretae | C.G. Ehrenberg | image |
| Fragilaria crocodylus | B. Van de Vijver & C.E. Wetzel | Phytotaxa | 561: 210, figs. 1-25 | 2022 |
| Fragilaria crotonensis f. curta | C.J. Schröter | image |
| Fragilaria crotonensis | F. Kitton | image |
| Fragilaria crotonensis subsp. lacus-vulcani | H. Lange-Bertalot & S. Ulrich | Lauterbornia | 78: 43, pl. 20: figs. 1-8; pl. 21: figs. 1-11 | 2014 |
| Fragilaria crotonensis var. contorta | W. West & G.S. West | image |
| Fragilaria crotonensis var. contorta | W. West & G.S. West | image |
| Fragilaria crotonensis var. media | C.J. Schröter & P. Vogler | image |
| Fragilaria crotonensis var. oregona | H.E. Sovereign | Trans. Amer. Microscop. Soc. | 77: 107, pl. II: figs. 1-3 | 1958 |
| Fragilaria crotonensis var. prolongata | (A. Grunow) H.F. Van Heurck | image |
| Fragilaria crotonensis var. prolongata | Grunow in Van Heurck | Syn. Diat. Belg.: | pl. XL: fig. 21 | 1881 |
| Fragilaria crotonensis var. subprolongata | C.J. Schröter & P. Vogler | image |
| Fragilaria crux - - | | image |
| Fragilaria cuneata | C.G. Ehrenberg | image |
| Fragilaria curta f. minima | O.G. Kozlova | image |
| Fragilaria curta | H.F. Van Heurck | image |
| Fragilaria curta | Van Heurck | Rapp. Sci. Voy. Belgica, Diatomées: | 24, pl. 3: fig. 37 | 1909 |
| Fragilaria curvata | Skvortzov | Publ. Mus. Hoangho Paiho Tien Tsin | 36: 6, pl. 1: figs. 5-7 | 1935 |
| Fragilaria curvistriata | Lohman & Andrews | image |
| Fragilaria cyclopum | (A. Brutschy) H. Lange-Bertalot | image |
| Fragilaria cylindrus | A. Grunow | image |
| Fragilaria cylindrus f. elongata | H.F. Van Heurck | image |
| Fragilaria cylindrus f. minor | E.E. Manguin | image |
| Fragilaria cylindrus var. van-heurckii | M. Peragallo | image |
| Fragilaria danica | (Kützing) H. Lange-Bertalot in H. Lange-Bertalot & D. Metzeltin | Iconogr. Diatomol. | 2: 54 | 1996 |
| Fragilaria deformis | (W. Smith) B. Van de Vijver & L. Ector in Van de Vijver et al. | Cryptogamie, Algologie | 41: 139 | 2020 |
| Fragilaria delicatissima | (W. Smith) H. Lange-Bertalot | image |
| Fragilaria delicatissima | A.I. Proshkina-Lavrenko | image |
| Fragilaria delicatissima | Proshkina-Lavrenko | Bot. Mater., Spor. Rast., Bot. Inst. Akad. Nauk SSSR | 13: 48, figs. 1-9 | 1960 |
| Fragilaria delicatissima var. angustissima | (A. Grunow) H. Lange-Bertalot | image |
| Fragilaria delicatula | F.R. Schoeman | image |
| Fragilaria demerarae | (A. Grunow) H. Lange-Bertalot | image |
| Fragilaria densestriata | F. Hustedt | image |
| Fragilaria densestriata | Hustedt | Arch. Hydrobiol. Suppl. | 15: 153, pl. X: figs. 65-67 | 1937 |
| Fragilaria denticulata | Lohman & Andrews | image |
| Fragilaria diatomoides | R.K. Greville | image |
| Fragilaria dibolos | M.H. Hohn & J. Hellerman | image |
| Fragilaria dilatata | (Brébisson) Lange-Bertalot | Biblioth. Diatomol. | 27: 45 | 1993 |
| Fragilaria dilatata | (Brébisson) Lange-Bertalot in Krammer & Lange-Bertalot in H. Ettl et al. (eds.) | Süsswasserfl. Mitteleuropa | 2{3}: 147 | 1991 |
| Fragilaria diophthalma | (C.G. Ehrenberg) C.G. Ehrenberg | image |
| Fragilaria diophthalma | (Ehrenberg) Ehrenberg | Symb. Phys. | 4 (Anim. Evertebr.): [13] | 1831 |
| Fragilaria diophthalma | Hemprich & C.G. Ehrenberg | image |
| Fragilaria distans | (Grunow) L.N. Bukhtiyarova | Algologia | 5: 417 | 1995 |
| Fragilaria dorsiventralis | (H. Müller) H. Lange-Bertalot | image |
| Fragilaria drouotiana | D. Heudre, C.E. Wetzel, L. Moreau, & L. Ector | Algological Studies | 155: 7, figs. 3-34 | 2019 |
| Fragilaria dubia | A. Grunow | image |
| Fragilaria dubia | Grunow | Verh. K. Zool.-Bot. Ges. Wien | 12: 373, pl. 7: fig. 28 | 1862 |
| Fragilaria durietzi | A. Cleve-Euler | image |
| Fragilaria dzonoticola | E. Novelo, R. Tavera, & C. Ibarra | Bibliotheca Diatomol. | 54: 19, pl. 1:12 | 2007 |
| Fragilaria ehrenbergii | Corda | Alman. Carlsbad | 10: 192, pl. II: figs. 5, 6 | 1840 |
| Fragilaria eichhornii | A. Witkowski & H. Lange-Bertalot in A. Witkowski, H. Lange-Bertalot, & M. Witak | Fragm. Florist. et Geobot. | 40: 731, figs. 1-9 | 1995 |
| Fragilaria eichornii | A. Witkowski & H. Lange-Bertalot | Limnologica | 23: 66, fig. 5m-r | 1993 |
| Fragilaria eifelensis | B. Van de Vijver & D.M. Williams | Nova Hedwigia | 115: 327, figs. 100-133 | 2022 |
| Fragilaria elliptica | J. Schumann | image |
| Fragilaria elliptica | Schumann | Schriften der Physikalish-okonomischen Gesellschaft zu Königsberg | 8: 52, pl. I: fig. 5 | 1867 |
| Fragilaria elliptica var. subrotunda | Mayer | Ber. Bayer. Bot. Ges. | 22: 65, pl. 3: figs. 6, 11 | 1937 |
| Fragilaria endocystifera | J. Heribaud | image |
| Fragilaria ennerdalensis | B. Van de Vijver, M. Kelly, C.E. Wetzel & L. Ector in Van de Vijver et al. | Fottea | 21: 144, figs. 224-247 | 2021 |
| Fragilaria entomon | C.G. Ehrenberg | image |
| Fragilaria estherae | M. Hajós | image |
| Fragilaria eugramma | C.G. Ehrenberg | image |
| Fragilaria eunotia | C.G. Ehrenberg | image |
| Fragilaria eutraphenta | B. Van de Vijver, W.-H. Kusber & D.M. Williams in Van de Vijver et al. | Fottea | 22: 283, figs. 477-520 | 2022 |
| Fragilaria excissa | Corda | Alman. Carlsbad | 10: 191, pl. I: figs. 2, 3 | 1840 |
| Fragilaria exigua | (W. Smith) E.J. Lemmermann | image |
| Fragilaria exigua | (W. Smith) Lemmermann | Arch. Hydrobiol. u. Planktonk. | 3: 409 | 1908 |
| Fragilaria exigua var. concava | E.J. Lemmermann | image |
| Fragilaria exiguiformis | H. Lange-Bertalot | image |
| Fragilaria exiguiformis | Lange-Bertalot | Biblioth. Diatomol. | 27: 45 | 1993 |
| Fragilaria exiguissima | R.E.M. Archibald | image |
| Fragilaria exilis | A. Grunow | image |
| Fragilaria exilis | Grunow | Verh. K.K. Zool.-Bot. Ges. Wien | 13: 143, pl. 13: fig. 21 | 1863 |
| Fragilaria famelica | (F.T. Kützing) H. Lange-Bertalot | image |
| Fragilaria famelica subsp. littoralis | (H. Germain) Lange-Bertalot | Biblioth. Diatomol. | 27: 46 | 1993 |
| Fragilaria famelica var. littoralis | (H. Germain) Lange-Bertalot in Krammer & Lange-Bertalot in H. Ettl et al. (eds.) | Süsswasserfl. Mitteleuropa | 2{3}: 128 | 1991 |
| Fragilaria familiaris | (F.T. Kützing) F. Hustedt | image |
| Fragilaria familiaris | (Kützing) Hustedt | Abh. Naturwiss. Ver. Bremen | 34: 229 | 1957 |
| Fragilaria fasciata | H.C. Lyngbye | image |
| Fragilaria fasciculata | (C.A. Agardh) H. Lange-Bertalot | image |
| Fragilaria filiformis | (Grunow) Van de Vijver & T.M. Schuster | Notulae Algarum | 253: 2 | 2022 |
| Fragilaria fissa | C.G. Ehrenberg | image |
| Fragilaria flavovirens | H. Takano | Bull. Tokai Reg. Fish. Res. Lab. | 120: 28, figs. 1-22 | 1986 |
| Fragilaria flexura | U. Hoff & H. Lange-Bertalot in Hoff et al. | Nova Hedwigia | 92: 443, figs. 2-33 | 2011 |
| Fragilaria floridana | G.D. Hanna | image |
| Fragilaria foliolum | (Corda) Corda | Alman. Carlsbad | 10: 193 | 1840 |
| Fragilaria fonticola f. constricta | J. Frenguelli | image |
| Fragilaria fonticola | F. Hustedt | image |
| Fragilaria fonticola | Hustedt | Arch. Hydrobiol. suppl. | 15: 151, pl. X: figs. 61, 62 | 1937 |
| Fragilaria fonticola var. angusta | F. Hustedt | image |
| Fragilaria fonticola var. angusta | Hustedt | Arch. Hydrobiol. suppl. | 15: 151, pl. X: figs. 63, 64 | 1937 |
| Fragilaria fonticola var. chandolensis | H.P. Gandhi | image |
| Fragilaria fonticola var. sinaica | F. Hustedt | image |
| Fragilaria fonticola var. tetragona | J. Frenguelli | image |
| Fragilaria fontinalis | (W. Smith) B. Van de Vijver, D.M. Williams, C.E. Wetzel & L. Ector | Notulae algarum | 198: 2 | 2021 |
| Fragilaria fossilis | (Pantocsek) H. Lange-Bertalot in Lange-Bertalot, Rumrich, & Hofmann | Acta Biol. Benrodis | 3: 121 | 1991 |
| Fragilaria fossilis | M. Hajós | image |
| Fragilaria fragilarioides | (A. Grunow) B.J. Cholnoky | image |
| Fragilaria fremontii_('fremontii') | C.G. Ehrenberg | image |
| Fragilaria frustulia | C.G. Ehrenberg | image |
| Fragilaria fusa | (R.M. Patrick) S. Wengrat, C.E. Wetzel & E. Morales in Wengrat et al. | Phytotaxa | 270: 194 | 2016 |
| Fragilaria fusus | C.G. Ehrenberg | image |
| Fragilaria gaillonii | (Bory) Lange-Bertalot | image |
| Fragilaria gallionella | C.G. Ehrenberg | image |
| Fragilaria gedanensis | A. Witkowski | Nova Hedwigia | 56: 498, pls. I-III | 1993 |
| Fragilaria gedanensis | A. Witkowski in A. Witkowski & H. Lange-Bertalot | Limnologica | 23: 62, fig. 31l-q | 1993 |
| Fragilaria geocollegarum | A. Witkowski & H. Lange-Bertalot in A. Witkowski, H. Lange-Bertalot, & M. Witak | Fragm. Florist. et Geobot. | 40: 731, figs. 16-25 | 1995 |
| Fragilaria geocollegarum | A. Witkowski & H. Lange-Bertalot in A. Witkowski | Biblioth. Diatomol. | 28: 127, pl. VI: figs. 1-5; pl. IX: fig. 4 | 1994 |
| Fragilaria germainii f. acostata | H. Lange-Bertalot in U. Rumrich, H. Lange-Bertalot, & M. Rumrich | Iconogr. Diatomol. | 9: 127, pl. 5: figs. 15-20; pl. 6: figs. 4-6 | 2000 |
| Fragilaria germainii | H. Lange-Bertalot & E. Reichardt in Ricard (ed.) | Ouvrage dédié à la Mémoire du Professeur Henry Germain (1903-1989) | 204, pl. 1: figs. 1-3 | 1990 |
| Fragilaria gessneri | F. Hustedt | image |
| Fragilaria gessneri | Hustedt in Gessner & Vareschi | Ergebn. Deutsch. Limnol. Venezuela-Exped. 1952 | 1: 107, text-figs. [Abb.] 13-18 | 1956 |
| Fragilaria gibba | C.G. Ehrenberg | image |
| Fragilaria gieskesii | B.J. Cholnoky | image |
| Fragilaria gigantea | A. Lauby | image |
| Fragilaria glabra | C.G. Ehrenberg | image |
| Fragilaria glacialis | P.C.M. Petit | image |
| Fragilaria glans | (C.G. Ehrenberg) C.G. Ehrenberg | image |
| Fragilaria glebula | M.H. Hohn & J. Hellerman | image |
| Fragilaria gloiophila | (Grunow) B. Van de Vijver, L. Ector, T.M. Schuster & J. Walter | Notulae algarum | 145: 2 | 2020 |
| Fragilaria gnathastoma | M.H. Hohn | image |
| Fragilaria goeyersiana | B. Van de Vijver & L. Ector | Phytotaxa | 468: 91, figs. 46-75 | 2020 |
| Fragilaria graciliformis | R.M. Gogorev & E.Y. Kapitonova in Kapitonova & Gogorev | Bot. Zhurn. | 96: 1332, pl. II: figs. 4-9; pl. VI | 2011 |
| Fragilaria gracilis | E.V. Østrup | image |
| Fragilaria gracillima | Ant. Mayer | image |
| Fragilaria grandis | C.G. Ehrenberg | image |
| Fragilaria granulata | C.G. Ehrenberg | image |
| Fragilaria granulata | G. Karsten | image |
| Fragilaria groenlandica | A.F. Meunier | image |
| Fragilaria grunowii | H. Lange-Bertalot & S. Ulrich | Lauterbornia | 78: 22, pl. 9: figs. 1-12; pl. 10: figs. 1-10 | 2014 |
| Fragilaria guenter-grassii | A. Witkowski & H. Lange-Bertalot | Limnologica | 23: 65, figs. 5a-j | 1993 |
| Fragilaria gustavei | J. Heribaud | image |
| Fragilaria hainanensis | Z. Zhang & Y. Qi | J. Jinan University (Natural Science & Medicine Edition) | 15: | 1994 |
| Fragilaria hantzschiana | Gerstenberger | image |
| Fragilaria hantzschiana | Gerstenberger in Rabenhorst | Alg. Eur. | 5/6: no. 1041 | 1861 |
| Fragilaria harrisonii | (W. Smith) A. Grunow | image |
| Fragilaria harrisonii f. mediocris | G.L. Rabenhorst | image |
| Fragilaria harrisonii f. minima | G.L. Rabenhorst | image |
| Fragilaria harrisonii f. minor | G.L. Rabenhorst | image |
| Fragilaria harrisonii var. almensis | R. Handmann | Mitt. Mikrolog. Ver. Linz | 1: 12, fig. 2 on p. 37 in article by F.V. Schieder | 1913 |
| Fragilaria harrisonii var. amphitetras | (A. Grunow) F. Hustedt | image |
| Fragilaria harrisonii var. dubia | A. Grunow | image |
| Fragilaria harrisonii var. dubia | Grunow | Verh. K.K. Zool.-Bot. Ges. Wien | 12: 368, pl. IV(7): fig. 8 | 1862 |
| Fragilaria harrisonii var. genuina | A. Grunow | image |
| Fragilaria harrisonii var. lanceolata | Pantocsek | Pozsyonyi Orvos-Termeszettudomanyi Egyesulet Kozlemenyei | 23: 30, pl. II: fig. 72, 73 | 1913 |
| Fragilaria harrisonii var. major | J. Heribaud | image |
| Fragilaria harrisonii var. ovalis | Pantocsek | Pozsyonyi Orvos-Termeszettudomanyi Egyesulet Kozlemenyei | 23: 29, pl. II: fig. 74 | 1913 |
| Fragilaria harrisonii var. rhomboides | A. Grunow | image |
| Fragilaria harrisonii var. rhomboides | Grunow | Verh. K.K. Zool.-Bot. Ges. Wien | 12: 368 | 1862 |
| Fragilaria harrisonii var. sinuata | F. Hustedt | image |
| Fragilaria harrisonii var. triangularis | P.T. Cleve | image |
| Fragilaria harrisonii var. trigona | G. Krasske | image |
| Fragilaria harrisonii var. trigona | Krasske | Arch. Hydrobiol. | 24: 437, pl. XVI: fig. 7 | 1932 |
| Fragilaria heatherae | M. Kahlert & M.G. Kelly in Kahlert et al. | Journal of Phycology | 55: 961, fig. 4 | 2019 |
| Fragilaria heidenii | Østrup | Danske Diat.: | 190 | 1910 |
| Fragilaria heidenii var. abbreviata | A. Cleve-Euler | image |
| Fragilaria heidenii var. istvanffyi | (Pantocsek) E.F. Stoermer & J.J. Yang | Great Lakes Research Division Special Report | 47: 82 | 1969 |
| Fragilaria henryi | H. Lange-Bertalot apud H. Lange-Bertalot & S.I. Genkal in H. Lange-Bertalot (ed.) | Iconographia Diatomologica | 6: 50 | 1999 |
| Fragilaria heudreana | B. Van de Vijver, C.E. Wetzel & L. Ector in Van de Vijver et al. | Fottea | 22: 281, figs. 438-476 | 2022 |
| Fragilaria himalayae | C.G. Ehrenberg | image |
| Fragilaria hinganensis | B.V. Skvortzov | image |
| Fragilaria hinganensis var. longissima | B.V. Skvortzov | image |
| Fragilaria hirosakiensis | T. Kanaya | Sci. Rep. Tohoku Univ., Ser. 2 (Geol.), | 30: 104, pl. 9: figs. 11-15 | 1959 |
| Fragilaria hirosakiensis var. minor | M. Hajós | image |
| Fragilaria hoelii | Foged | Tromsö Museums Skrifter | 11: 58, pl. I: fig. 25 | 1964 |
| Fragilaria huebeneri | A. Schwarz, K.J. Krahn & C.E. Wetzel in Krahn et al. | Phytotaxa | 479: 9, figs. 43-65 | 2021 |
| Fragilaria huerlimannii | B. Van de Vijver in Van de Vijver et al. | Fottea | 22: 273, figs. 216-243 | 2022 |
| Fragilaria hungarica | J. Pantocsek | image |
| Fragilaria hungarica | J. Pantocsek | image |
| Fragilaria hungarica | Pantocsek | Beitr. Kenntn. Foss. Bacill. Ungarns | 3: 53 (1905), pl. VIII: fig. 128 (1892) | 1892 |
| Fragilaria hungarica | Pantocsek | Balaton kovamosz.: | 99, pl. IX: fig. 226 | 1901 |
| Fragilaria hungarica var. tumida | A. Cleve-Euler | image |
| Fragilaria hungarica var. tumida | Cleve-Euler | Kongl. Svenska Vetensk.-Akad. Handl., ser. 4, | 4{1}: 40, fig. 349n | 1953 |
| Fragilaria husvikensis | B. Van de Vijver, L. Denys, & L. Beyens | Nova Hedwigia | 70: 538, figs. 1-62 | 2000 |
| Fragilaria hyalina | (F.T. Kützing) A. Grunow | image |
| Fragilaria hyalina var. major | A. Grunow | image |
| Fragilaria hyalina var. minima | (Ralfs) De Toni | Syll. Alg. | 2: 683 | 1892 |
| Fragilaria hyalina var. minor | A. Grunow | image |
| Fragilaria hyalina var. vitrea | (Kützing) De Toni | Syll. Alg. | 2: 683 | 1892 |
| Fragilaria hyemalis | (Roth) H.C. Lyngbye | image |
| Fragilaria hyemalis | (Roth) Lyngbye | Tent. Hydrophytol. Dan.: | 185 | 1819 |
| Fragilaria hyemalis | C. Agardh | Syst. Alg.: | 7 | 1824 |
| Fragilaria hyemalis | H.C. Lyngbye ex C.G. Ehrenberg | image |
| Fragilaria imbramoviciana | I. Kaczmarska | Fragm. Florist. et Geobot. | 22: 236, figs. 2, 6 | 1976 |
| Fragilaria improbula | A. Witkowski & H. Lange-Bertalot in A. Witkowski, H. Lange-Bertalot, & M. Witak | Fragm. Florist. et Geobot. | 40: 734, figs. 28-38 | 1995 |
| Fragilaria incisa | (C.S. Boyer) H. Lange-Bertalot | image |
| Fragilaria incognita | E. Reichardt | Diatom Research | 3: 237, figs. 1-10 | 1988 |
| Fragilaria indigena | B.V. Skvortzov | image |
| Fragilaria inflata | (Heiden) Hustedt | Rabenhorst's Krypt.-Fl. Deutschl., 2.Aufl., | 7{2}: 155 | 1931 |
| Fragilaria inflata | J. Pantocsek | image |
| Fragilaria inflata | Pantocsek | Balaton Kovamosz.: | 98, pl. IX: figs. 219-221 | 1901 |
| Fragilaria inflata var. istvanffyi | (Pantocsek) Hustedt | Rabenhorst's Krypt.-Fl. Deutschl., 2.Aufl., | 7{2}: 156 | 1931 |
| Fragilaria inflata var. rhombica | (Cleve) F. Meister | image |
| Fragilaria inflata var. sublinearis | E.E. Manguin | image |
| Fragilaria inflatissima | F. Hustedt | image |
| Fragilaria inflexa | C.G. Ehrenberg | image |
| Fragilaria intermedia | (A. Grunow) A. Grunow | image |
| Fragilaria intermedia | (Grunow) Grunow in Van Heurck | Syn. Diat. Belg.: | expl. pl. XLV | 1881 |
| Fragilaria intermedia f. chandrapurensis | P.T. Sarode & N.D. Kamat | image |
| Fragilaria intermedia f. continua | A. Cleve-Euler | image |
| Fragilaria intermedia f. deformis | (A. Grunow) A. Cleve-Euler | image |
| Fragilaria intermedia var. capitellata | (A. Grunow) A. Cleve-Euler | image |
| Fragilaria intermedia var. continua | A. Cleve-Euler | image |
| Fragilaria intermedia var. distans | (A. Grunow) A. Cleve-Euler | image |
| Fragilaria intermedia var. fallax | (Grunow) E.F. Stoermer & J.J. Yang | Great Lakes Research Division Special Report | 47: 84 | 1969 |
| Fragilaria intermedia var. karelica | K. Mölder | image |
| Fragilaria intermedia var. lanceolata | P. Fusey | image |
| Fragilaria intermedia var. littoralis | H. Germain | Fl. Diat.: | 66/68, pl. 20: figs. 11-21 | 1981 |
| Fragilaria intermedia var. rhomboides | P. Fusey | image |
| Fragilaria intermedia var. robusta | G.S. Venkataraman | image |
| Fragilaria intermedia var. semisinuata | A. Cleve-Euler | image |
| Fragilaria interstincta | M.H. Hohn & J. Hellerman | image |
| Fragilaria investiens - - | | image |
| Fragilaria iraqiensis | (A. Al-Handal & J.P. Kociolek) P. Rioual in Rioual et al. | Phytotaxa | 329: 44 | 2017 |
| Fragilaria irregularis | D. Chudaev, I. Jüttner, & B. Van de Vijver | Phytotaxa | 508: 221, figs. 1-56 | 2021 |
| Fragilaria ischaboensis | A. Grunow | image |
| Fragilaria islandica | A. Grunow | image |
| Fragilaria islandica var. adeliae | E.E. Manguin | image |
| Fragilaria islandica var. angusta | J. Pantocsek & P. Greguss | image |
| Fragilaria islandica var. fossilis | J. Pantocsek | image |
| Fragilaria islandica var. hyperborea | P.T. Cleve | image |
| Fragilaria islandica var. litoralis | A.I. Proshkina-Lavrenko | image |
| Fragilaria islandica var. producta | M. Peragallo | image |
| Fragilaria islandica var. stricta | M. Peragallo | image |
| Fragilaria istvanffyi var. tenuirostris | O. Müller | image |
| Fragilaria istvanffyi_('Istvánffyi') | Pantocsek | Balaton kovamosz.: | 99, pl. IX: fig. 225 | 1901 |
| Fragilaria istvanffyi_('istvánffyi') | J. Pantocsek | image |
| Fragilaria japonica | F. Meister | image |
| Fragilaria japonica | J. Pantocsek | image |
| Fragilaria javanica | F. Hustedt | image |
| Fragilaria javanica | Hustedt | Arch. Hydrobiol. Suppl. | 15: 154, pl. X: figs. 59, 60 | 1937 |
| Fragilaria joachimii | M. Kahlert in Kahlert et al. | Journal of Phycology | 55: 963, fig. 5 | 2019 |
| Fragilaria juergensii | (Agardh) F.T. Kützing | image |
| Fragilaria kamchadal | Molinari & Guiry | Notulae algarum | 184: 5 | 2021 |
| Fragilaria karelica | K. Mölder | image |
| Fragilaria karelica | Mölder | Ann. Bot. Soc. Zool.-Bot. Fenn. Vanamo | 25{1}: 26, pl. I: figs. 26, 27 | 1951 |
| Fragilaria karelica var. brevis | K. Mölder | image |
| Fragilaria karstenii | B.P. Boden | image |
| Fragilaria kellyana | B. Van de Vijver, D.M. Williams & L. Ector in Van de Vijver et al., | Fottea | 23: 84, figs. 375-412 | 2023 |
| Fragilaria kerguelensis | (E. O'Meara) Cleve | image |
| Fragilaria kerguelensis var. asymmetrica | E.J. Lemmermann | image |
| Fragilaria kerguelensis var. brevior | (E.J. Lemmermann) E.J. Lemmermann | image |
| Fragilaria kizakensis | B.V. Skvortzov & M. Noda | image |
| Fragilaria kochii | J. Pantocsek | image |
| Fragilaria kriegeriana | Krasske | image |
| Fragilaria labei | A. Witkowski & D. Metzeltin apud D. Metzeltin & A. Witkowski in H. Lange-Bertalot (ed.) | Iconographia diatomologica | 4: 16, pl. 49: 31-40; pl. 71: figs. 1, 2; pl. 74: figs. 4-6, 13 [13 not cited in text] | 1996 |
| Fragilaria lacus-baikali | B.V. Skvortzov | image |
| Fragilaria laevigata | (A. Grunow) H. Lange-Bertalot | image |
| Fragilaria laevis | C.G. Ehrenberg | image |
| Fragilaria laevis | Corda | Alman. Carlsbad | 10: 190, pl. I: fig. 1 | 1840 |
| Fragilaria laevis | Ehrenberg | Abh. Königl. Akad. Wiss. Berlin, Phys. Kl. | 1841: 329, 415 | 1843 |
| Fragilaria laevissima | Cleve | Bih. K. Svenska Vet. Akad. Handl. | 24(Afd. III, \f22\fP): 9, fig. 9 | 1898 |
| Fragilaria laevissima | E.V. Østrup | image |
| Fragilaria laevissima | F. Meister | image |
| Fragilaria laevissima var. circumnodosa | J.-J. Brun | image |
| Fragilaria laevissima var. undulata | E.V. Østrup | image |
| Fragilaria lagerheimii | A. Cleve-Euler | Kongl. Svenska Vet. Akad. Handl., ser. 4, | 4{1}: 48, no fig. | 1953 |
| Fragilaria lagerheimii var. undulata | A. Cleve-Euler | Kongl. Svenska Vet. Akad. Handl., ser. 4, | 4{1}: 48, fig. 360 | 1953 |
| Fragilaria lamella | C.G. Ehrenberg | image |
| Fragilaria lanceolata | (Kützing) E. Reichardt | Nova Hedwigia | 47: 85 | 1988 |
| Fragilaria lancettula | Schumann | Schriften Königl. Phys.-Ökon. Ges. Königsberg | 8(Abh.): 52, pl. I: fig. 4 | 1867 |
| Fragilaria landnama | B. Van de Vijver & Iris Hansen in Van de Vijver et al., | Fottea | 23: 86, figs. 413-451 | 2023 |
| Fragilaria lapponica | A. Grunow | image |
| Fragilaria lapponica f. lanceolata | Hustedt | Int. Rev. Gesamten Hydrobiol. u. Hydrogr. | 42: 25, figs. 20-23 | 1942 |
| Fragilaria lapponica var. capitata | A. Lauby | image |
| Fragilaria lapponica var. curvata | G. Krasske | image |
| Fragilaria lapponica var. gigantea | J. Heribaud | image |
| Fragilaria lapponica var. inflata | J.L. Stone in McLaughlin & Stone | Beih. Nova Hedwigia | 82: 47, pl. 5: fig. 82 | 1986 |
| Fragilaria lapponica var. lanceolata | (Hustedt) Z. Zhang & Y. Qi | J. Jinan University (Natural Science & Medicine Edition) | 15: | 1994 |
| Fragilaria lapponica var. lanceolata | F. Hustedt | image |
| Fragilaria lapponica var. marciniakiae_(`marciniakae') | I. Kaczmarska | Fragm. Florist. et Geobot. | 22: 235, figs. 1, 5 | 1976 |
| Fragilaria lapponica var. minuta | A. Cleve | image |
| Fragilaria lapponica var. minuta | J. Pantocsek | image |
| Fragilaria lapponica var. rostrata | G. Krasske | image |
| Fragilaria lapponica var. tetragonalis | G.A. Prowse | image |
| Fragilaria lata | (A. Cleve-Euler) I. Renberg | image |
| Fragilaria lata | (Cleve-Euler) I. Renberg | Bot. Not. | 130: 315 | 1977 |
| Fragilaria latruncularia | H.C. Lyngbye | image |
| Fragilaria legumen | C.G. Ehrenberg | image |
| Fragilaria lemanensis | (J.C. Druart, S. Lavigne, & M. Robert) B. Van de Vijver, L. Ector & F. Straub in Van de Vijver et al. | Botany Letters | 168: 89 | 2020 |
| Fragilaria lenoblei | E.E. Manguin | image |
| Fragilaria lenoblei f. lanceolata | E.E. Manguin | image |
| Fragilaria lenoblei f. trigona | E.E. Manguin | image |
| Fragilaria lenzii | (G. Krasske) H. Lange-Bertalot & Willmann apud H. Lange-Bertalot et al. in H. Lange-Bertalot (ed.) | Iconographia Diatomologica | 3: 184 | 1996 |
| Fragilaria leptarthra | Corda | Alman. Carlsbad | 10: 192, pl. I: fig. 4 | 1840 |
| Fragilaria leptocephala | C.G. Ehrenberg | image |
| Fragilaria leptoceros | C.G. Ehrenberg | image |
| Fragilaria leptostauron | (Ehrenberg) Hustedt | Rabenhorst's Krypt.-Fl. Deutschl., 2.Aufl., | 7{2}: 153 | 1931 |
| Fragilaria leptostauron f. inaequilatera | A. Mayer | Ber. Bayer. Bot. Ges. | 22: 72, pl. III: figs. 68,72,78,79; pl. IV: fig. 1a,b | 1937 |
| Fragilaria leptostauron f. obliqua | A. Mayer | Ber. Bayer. Bot. Ges. | 22: 72, pl. III: fig. 70; pl. IV: figs. 3,4a,4b | 1937 |
| Fragilaria leptostauron f. tripartita | A. Mayer | Ber. Bayer. Bot. Ges. | 22: 72, pl. III: figs. 74,75 | 1937 |
| Fragilaria leptostauron var. amphitetras | (Grunow) H.P. Gandhi | Fresh-water Diatoms Central Gujarat: | 301 | 1998 |
| Fragilaria leptostauron var. dubia | (Grunow) Hustedt | Rabenhorst's Krypt.-Fl. Deutschl. | 7{2}: 154 | 1931 |
| Fragilaria leptostauron var. fossilis | (J. Pantocsek) R\*veháková | Rozpr. Ústr\*ved. Ústavu Geol. | 32: 37 | 1965 |
| Fragilaria leptostauron var. fossilis | (J. Pantocsek) Reháková | image |
| Fragilaria leptostauron var. hainanensis | Z. Zhang in Z. Zhang & Y. Qi | J. Jinan University (Natural Science & Medicine Edition) | 15: | 1994 |
| Fragilaria leptostauron var. martyi | (Héribaud) Lange-Bertalot in Krammer & Lange-Bertalot in H. Ettl et al. (eds.) | Süsswasserfl. Mitteleuropa | 2{3}: 160 | 1991 |
| Fragilaria leptostauron var. neotrigona | Guiry & Karthick in Guiry et al. | Notulae algarum | 133: 3, description and illustration in Gandhi (1998: 303, pl. 4: figs. 39, 40) | 2020 |
| Fragilaria leptostauron var. rhomboides | (Grunow) Hustedt | Rabenhorst's Krypt.-Fl. Deutschl. | 7{2}: 154 | 1931 |
| Fragilaria leptostauron var. stauroneiformis | N. Woodhead & R.D. Tweed | image |
| Fragilaria leptostauron var. stauroneiformis | Woodhead & Tweed | Rev. Algol. n.s. | 5: 129, fig. 23 | 1960 |
| Fragilaria leptostauron var. triangula | M. Hajós | image |
| Fragilaria leptostauron var. trigona | (Krasske) H. Lange-Bertalot & M. Willmann in H. Lange-Bertalot et al. | Iconographia Diatomologica | 3: 83 | 1996 |
| Fragilaria leptostauron var. trigona | H.P. Gandhi | Fresh-water Diatoms Central Gujarat: | 303, pl. 4: figs. 39, 40 | 1998 |
| Fragilaria leptostauron var. woerthensis | A. Mayer | Ber. Bayer. Bot. Ges. | 22: 73, pl. IV: figs. 15-17 | 1937 |
| Fragilaria linearis | Castracane | image |
| Fragilaria linearis var. intermedia | E.E. Manguin | image |
| Fragilaria lineata | (Dillwyn) Lyngbye | Tent.: | 184 | 1819 |
| Fragilaria lineata | (L.W. Dillwyn) H.C. Lyngbye | image |
| Fragilaria litoralis | B.J. Cholnoky | image |
| Fragilaria loetschertii | H. Lange-Bertalot in H. Lange-Bertalot & R. Le Cohu | Ann. Limnol. | 21: 214, pl. I: figs. 13-17; pl. III: figs. 30-34 | 1986 |
| Fragilaria longiceps | (C.G. Ehrenberg) H. Lange-Bertalot | image |
| Fragilaria longifusiformis | P.A. Siver, E.A. Morales, B. Van de Vijver, M. Smits, P.B. Hamilton, H. Lange-Bertalot, & J.J. Hains | Phycol. Res. | 54: 185 | 2006 |
| Fragilaria longifusiformis subsp. eurofusiformis | H. Lange-Bertalot & S. Ulrich | Lauterbornia | 78: 37, pl. 17: figs. 1-7; pl. 18: figs. 1-8 | 2014 |
| Fragilaria longirostris | J. Frenguelli | image |
| Fragilaria longissima | F. Hustedt | image |
| Fragilaria luciae | B.J. Cholnoky | image |
| Fragilaria luteolus | Corda | Alman. Carlsbad | 10: 193, pl. II: fig. 5 | 1840 |
| Fragilaria maarensis | K.J. Krahn & C.E. Wetzel in Krahn et al. | Phytotaxa | 479: 7, figs. 24-42 | 2021 |
| Fragilaria maeotica | I.V. Milovanova | image |
| Fragilaria maillardii | R. Le Cohu in H. Lange-Bertalot & R. Le Cohu | Ann. Limnol. | 21: 213, pl. I: figs. 1-3. 18-23; pl. II: fig. 24 | 1986 |
| Fragilaria malouana | B. Van de Vijver & A. Jarlman in Van de Vijver et al. | Fottea | 21: 142, figs. 174-199 | 2021 |
| Fragilaria margarethae | F.R. Schoeman | image |
| Fragilaria martyi | (Héribaud) Lange-Bertalot | Biblioth. Diatomol. | 27: 46 | 1993 |
| Fragilaria martyi | (J. Heribaud) H. Lange-Bertalot | image |
| Fragilaria maxima | E. O'Meara | image |
| Fragilaria mazamaensis | (H.E. Sovereign) H. Lange-Bertalot | image |
| Fragilaria mecsekia f. minuta | M. Hajós | image |
| Fragilaria mecsekia | M. Hajós | image |
| Fragilaria mertensiana | B. Van de Vijver, C.E. Wetzel & L. Ector in Van de Vijver et al. | Fottea | 22: 283, figs. 521-546 | 2022 |
| Fragilaria mesodon | C.G. Ehrenberg | image |
| Fragilaria mesodon | C.G. Ehrenberg | image |
| Fragilaria mesogongyla | C.G. Ehrenberg | image |
| Fragilaria mesolepta | G.L. Rabenhorst | image |
| Fragilaria mesolepta | G.L. Rabenhorst | image |
| Fragilaria mesolepta | Rabenhorst | Alg. Eur. | 5/6: no. 1041, [2] figs. | 1861 |
| Fragilaria mesotyla | C.G. Ehrenberg | image |
| Fragilaria metcalfeana | B. Van de Vijver, D.M. Williams, W. Kusber & T.M. Schuster in Van de Vijver et al. | Fottea | 22: 110 | 2022 |
| Fragilaria micra | Z. Levkov & D.M. Williams | Phytotaxa | 30: 8, figs. 46-63 | 2011 |
| Fragilaria microcephala | J. Pantocsek | image |
| Fragilaria microcephala | R.F. Bastow | image |
| Fragilaria microcephala | R.F. Bastow | J. Quekett Microscop. Club, ser. 4, | 5: 242, pl. I: figs. 15, 16 | 1960 |
| Fragilaria microradians | B. Van de Vijver & D.M. Williams | Nova Hedwigia | 115: 329, figs. 134-162 | 2022 |
| Fragilaria microrhombus | B.J. Cholnoky | image |
| Fragilaria microstriata | B. Marciniak | Acta Geol. Acad. Sci. Hung. | 25: 165, pl. II: figs. 5, 6 | 1982 |
| Fragilaria microvaucheriae | C.E. Wetzel & L. Ector | Cryptogamie, Algologie | 36: 282, figs. 107-142 | 2015 |
| Fragilaria minima | (J. Ralfs) A. Grunow | image |
| Fragilaria minima | E. Steemann Nielsen | image |
| Fragilaria minuscula | (A. Grunow) D.M. Williams & F.E. Round | image |
| Fragilaria minuta | J. Pantocsek | image |
| Fragilaria minutissima | A. Grunow | image |
| Fragilaria miocenica var. chankensis | Moiseeva | image |
| Fragilaria miocenica var. tetranodis | Moiseeva | image |
| Fragilaria miocenica | Z. Jouse | image |
| Fragilaria misarelensis | F.P. Almeida, C. Delgado, M.H. Novais & S. Blanco in Novais et al. | Phycologia | 58: 131, figs. 3-43 | 2019 |
| Fragilaria moissacensis | J. Heribaud | image |
| Fragilaria mollis | A.F. Meunier | image |
| Fragilaria montana | (Krasske ex Hustedt) Lange-Bertalot | Nova Hedwigia | 33: 747 | 1981 |
| Fragilaria mormonorum | (A. Grunow) C.S. Boyer | image |
| Fragilaria multipunctata | (C.G. Ehrenberg) C.G. Ehrenberg | image |
| Fragilaria multipunctata | (Ehrenberg) Ehrenberg | Symb. Phys. | 4 (Anim. Evertebr.): [13] | 1831 |
| Fragilaria multipunctata | Hemprich & C.G. Ehrenberg | image |
| Fragilaria mutabilis | (W. Smith) A. Grunow | image |
| Fragilaria mutabilis f. martyi | (J. Heribaud) A. Cleve-Euler | image |
| Fragilaria mutabilis var. asymmetrica | A. Cleve-Euler | Sveriges Geologiska Undersökning, Ser. C, | 309: 70, fig. 32 | 1922 |
| Fragilaria mutabilis var. baicalensis | B.V. Skvortzov & Meyer | image |
| Fragilaria mutabilis var. bullata | E.V. Østrup | image |
| Fragilaria mutabilis var. diatomacea | A. Grunow | image |
| Fragilaria mutabilis var. genuina | A. Grunow | image |
| Fragilaria mutabilis var. inflata | E.V. Østrup | image |
| Fragilaria mutabilis var. intercedens | A. Grunow | image |
| Fragilaria mutabilis var. intercedens | A. Grunow | image |
| Fragilaria mutabilis var. intercedens | Grunow in Van Heurck | Syn. Diat. Belg.: | pl. XLV: fig. 13 | 1881 |
| Fragilaria mutabilis var. intermedia | A. Grunow | image |
| Fragilaria mutabilis var. intermedia | Grunow | Verh. K. Zool.-Botanischen Ges. Wien | 12: 369, pl. IV: fig. 9 | 1862 |
| Fragilaria mutabilis var. lanceolata | E.V. Østrup | image |
| Fragilaria mutabilis var. lancettula | (J. Schumann) A. Cleve-Euler | image |
| Fragilaria mutabilis var. lancettula | (Schumann) Cleve-Euler | Kongl. Svenska Vetenskapsakad. Handl., ser. 3 [i.e. 5] | 11{2}: 23 | 1932 |
| Fragilaria mutabilis var. linearis | A. Cleve-Euler | Sveriges Geologiska Undersökning, Ser. C, | 309: 70, fig. 34 | 1922 |
| Fragilaria mutabilis var. robusta | B.V. Skvortzov & Meyer | image |
| Fragilaria mutabilis var. subsolitaris | A. Grunow | image |
| Fragilaria mutabilis var. subsolitaris | Grunow | Ver. K. Zool.-Bot. Ges. Wien | 12: 369, no fig. | 1862 |
| Fragilaria mutabilis var. trinodis | P. Prudent | image |
| Fragilaria nana | (F. Meister) H. Lange-Bertalot | image |
| Fragilaria nana | E. Steemann Nielsen | image |
| Fragilaria nanana | H. Lange-Bertalot | Biblioth. Diatomol. | 27: 48 | 1993 |
| Fragilaria nanana | Lange-Bertalot in Krammer & Lange-Bertalot in H. Ettl et al. (eds.) | Süsswasserfl. Mitteleuropa | 2{3}: 130 | 1991 |
| Fragilaria nankoorensis | A. Grunow | image |
| Fragilaria nanoides | H. Lange-Bertalot in H. Lange-Bertalot & D. Metzeltin | Iconogr. Diatomol. | 2: 55, pl. 109: figs. 2-6 | 1996 |
| Fragilaria neglecta | B. Van de Vijver, C.E. Wetzel, A. Jarlman & L. Ector in Van de Vijver et al. | Fottea | 22: 275, figs. 411-437 | 2022 |
| Fragilaria neoelliptica | A. Witkowski | Biblioth. Diatomol. | 28: 128, pl. X | 1994 |
| Fragilaria neogena | J. Pantocsek | image |
| Fragilaria neointermedia | A. Tuji & D.M. Williams | Bull. Natl. Sci. Mus., Tokyo, Ser. B (Bot.), | 39: 7, figs. 28-42 | 2013 |
| Fragilaria neoproducta | Lange-Bertalot | Biblioth. Diatomol. | 27: 48, pl. 127: figs. 1-5! and pl. 125: fig. 3 in H. Ettl et al. (eds.), Süsswasserfl. Mitteleuropa 2{3} (1991) | 1993 |
| Fragilaria neoproducta | Lange-Bertalot in Krammer & Lange-Bertalot in H. Ettl et al. (eds.) | Süsswasserfl. Mitteleuropa | 2{3}: 136, pl. 127: figs. 1-5A; pl. 125: fig. 3 | 1991 |
| Fragilaria neotropica | P.D. Almeida, E. Morales & C.E. Wetzel in Almeida et al. | Phytotaxa | 246: 171, figs. 23-53 | 2016 |
| Fragilaria nevadensis | J.E. Linares-Cuesta, & P.M. Sánchez-Castillo | Diatom Research | 22: 128, figs. 1-9 | 2007 |
| Fragilaria newberryi | C.G. Ehrenberg | image |
| Fragilaria nitida | (Gregory) Migula | Krypt.-Fl. Deutschl., Alg. | 1: 189 | 1905 |
| Fragilaria nitida | J. Heribaud | image |
| Fragilaria nitida var. curta | J. Heribaud | image |
| Fragilaria nitida var. delicatula | J. Heribaud | image |
| Fragilaria nitida var. minor | J. Heribaud | image |
| Fragilaria nitzschioides | A. Grunow | image |
| Fragilaria nitzschioides | Grunow in Van Heurck | Syn. Diatom. Belgique: | pl. XLIV: fig. 10 | 1881 |
| Fragilaria nitzschioides var. brasiliensis | A. Grunow | image |
| Fragilaria nitzschioides var. brasiliensis | Grunow in Van Heurck | Syn. Diatom. Belgique: | pl. XLIV: fig. 11 | 1881 |
| Fragilaria nitzschioides var. kamczatica | E.G. Lupikina | image |
| Fragilaria nodosa | Cleve | image |
| Fragilaria nodulosa | C.G. Ehrenberg | image |
| Fragilaria northumbrica | A. Grunow | image |
| Fragilaria northumbrica | Grunow in Van Heurck | Syn. Diatom. Belgique: | pl. XLIV: fig. 17 | 1881 |
| Fragilaria nummuloides | (Dillwyn) Lyngbye | Tent. Hydrophytol. Dan.: | 184 | 1819 |
| Fragilaria nummuloides | (L.W. Dillwyn) H.C. Lyngbye | image |
| Fragilaria oamaruensis | Schrader | image |
| Fragilaria obliquecostata f. maxima | H.F. Van Heurck | image |
| Fragilaria obliquecostata | H.F. Van Heurck | image |
| Fragilaria oblonga | G. Drebes & D. Schulz | Beih. Nova Hedwigia | 100: 7, figs. 2-18 | 1990 |
| Fragilaria obtusa | F. Hustedt | image |
| Fragilaria obtusa | Hustedt in F. Gessner & V. Vareschi (eds.) | Ergebn. Deutsch. Limnol. Venezuela-Exped. 1952 | 1: 108, text-figs. [Abb.] 19-22 | 1956 |
| Fragilaria oceanica | Cleve | Bih. K. Svenska Vet.-Akad. Handl. | 1{13}: 22, pl. IV: fig. 25 | 1873 |
| Fragilaria oceanica f. circularis | H.H. Gran | image |
| Fragilaria oceanica f. convoluta | H.H. Gran | image |
| Fragilaria oceanica f. torta | H.H. Gran | image |
| Fragilaria oceanica | P.T. Cleve | image |
| Fragilaria oceanica var. acuta | B.V. Skvortzov | image |
| Fragilaria oceanica var. japonica | B.V. Skvortzov | image |
| Fragilaria odeloucaensis | E. Morales, M.H. Novais, C.E. Wetzel, L. Ector & M.M. Morais | Phytotaxa | 555: 220, figs. 2-31 | 2022 |
| Fragilaria oldenburgiana | F. Hustedt | image |
| Fragilaria oldenburgiana | Hustedt | Veröff. Inst. Meeresf. Bremerhaven | 6: 29, figs. 20, 21 | 1959 |
| Fragilaria oldenburgioides | H. Lange-Bertalot in H. Lange-Bertalot & D. Metzeltin | Icon. Diat. | 2: 55, pl. 7: figs. 42-47a,b; pl. 111: figs. 8, 9 | 1996 |
| Fragilaria opacolineata | H. Lange-Bertalot in H. Lange-Bertalot & D. Metzeltin | Iconogr. Diatomol. | 2: 56, pl. 7: figs. 36-41b; pl. 111: figs. 2, 3 | 1996 |
| Fragilaria opephoroides | H. Takano | Bull. Tokai Reg. Fish. Res. Lab. | 125: 36, figs. 1, 2, 16-26 | 1988 |
| Fragilaria ostenfeldii | (Willi Krieger) Van de Vijver, E.E. Alexson & E.D. Reavie in Van de Vijver et al. | Botany Letters | 168: 88 | 2020 |
| Fragilaria oxyptera - - | | image |
| Fragilaria oxyrhombus | C.G. Ehrenberg | image |
| Fragilaria pacifica | A. Grunow | image |
| Fragilaria pacifica | Grunow | Verh. K.K. Zool.-Bot. Ges. Wien | 12: 373, pl. VIII: fig. 19 | 1862 |
| Fragilaria pacifica var. trigona | Brun & Héribaud in Héribaud | Diat. Auvergne: | 147, pl. I: fig. 8 | 1893 |
| Fragilaria pacifica var. trigona | J.-J. Brun & J. Heribaud | image |
| Fragilaria paludosa | (Meister) H. Lange-Bertalot & S. Ulrich | Lauterbornia | 78: 21 | 2014 |
| Fragilaria pantocsekii | A. Cleve-Euler | Kongl. Svenska Vet. Akad. Handl., ser. 4, | 4{1}: 32 | 1953 |
| Fragilaria paradoxa | C.G. Ehrenberg | image |
| Fragilaria paradoxa | C.G. Ehrenberg | image |
| Fragilaria paradoxa | Ehrenberg | Ber. K. Akad. Wiss. Berlin | 1841: 143 | 1841 |
| Fragilaria pararumpens | Lange-Bertalot, G. Hofmann & M. Werum in Hofmann, Werum, & Lange-Bertalot | Diatomeen im Süsswasser-Benthos von Mitteleuropa: | 269, pl. 8: figs. 4-10 | 2011 |
| Fragilaria parasitica | (W. Smith) Heiberg | Consp. Diat. Dan.: | 62 | 1863 |
| Fragilaria parasitica | (W. Smith) P.A.C. Heiberg | image |
| Fragilaria parasitica f. constricta | Ant. Mayer | image |
| Fragilaria parasitica f. genuina | Ant. Mayer | image |
| Fragilaria parasitica f. rhomboidalis | Ant. Mayer | image |
| Fragilaria parasitica var. asterionelloides | F. Meister | image |
| Fragilaria parasitica var. genuina | Ant. Mayer | image |
| Fragilaria parasitica var. subconstricta | A. Grunow | image |
| Fragilaria parasitica var. subconstricta | Grunow in Van Heurck | Syn. Diat. Belg.: | pl. XLV: fig. 29 | 1881 |
| Fragilaria parasitica var. trigona | A. Grunow | image |
| Fragilaria parasitica var. trigona | Grunow in Van Heurck | Syn. Diat. Belg.: | pl. CXVI: fig. 14 | 1883 |
| Fragilaria parva | (Van Heurck) A. Tuji & D.M. Williams | Diatom | 24: 9 | 2008 |
| Fragilaria patagonica | (Cleve) De Toni | Syll. Alg. | 2: 690 | 1892 |
| Fragilaria patagonica var. rostrata | O. Müller | image |
| Fragilaria pectinalis | (O.F. Müller) H.C. Lyngbye | image |
| Fragilaria pectinalis | (O.F. Müller) Lyngbye | Tent.: | 185 | 1819 |
| Fragilaria pectinalis | C.G. Ehrenberg | image |
| Fragilaria pectinalis var. hyemalis | (Roth) L.A. Brebisson | image |
| Fragilaria pectinalis var. hyemalis | (Wallroth) Brébisson in C. Chevalier | Microscopes: | 273 | 1839 |
| Fragilaria pectinalis var. undulata | J. Ralfs | image |
| Fragilaria pectinalis var. undulata | Ralfs | Ann. & Mag. Nat. Hist. | 12: 107, pl. II: fig. 3d | 1843 |
| Fragilaria pectinata | C.G. Ehrenberg | image |
| Fragilaria pediculata | A.I. Proshkina-Lavrenko | image |
| Fragilaria pelagica | C.G. Ehrenberg | image |
| Fragilaria pellucida | Lohman & Andrews | image |
| Fragilaria pelta | M.H. Hohn & J. Hellerman | image |
| Fragilaria pennsylvanica | E.A. Morales | Proc. Acad. Nat. Sci. Philadelphia | 153: 163, figs. 2-29 | 2003 |
| Fragilaria peragalloi | J. Pantocsek | image |
| Fragilaria peragalloi_('Peragalli') | J. Frenguelli | image |
| Fragilaria perdelicatissima | Lange-Bertalot & Van de Vijver in H. Lange-Bertalot & S. Ulrich | Lauterbornia | 78: 19, pl. 7: figs. 11-14; pl. 8: figs. 1-14 | 2014 |
| Fragilaria pettyorum | J.P. Kociolek, R.L. Lowe, K. Sánchez, & J.G. Stepanek | The Great Lakes Botanist | 60: 35, figs. 22-26 | 2021 |
| Fragilaria phantasma | (M.H. Hohn) C.E. Wetzel, M. Potapova & D.M. Williams | Notulae Algarum | 252: 2 | 2022 |
| Fragilaria pinnata | C.G. Ehrenberg | image |
| Fragilaria pinnata | Ehrenberg | Ber. K. Akad. Wiss. Berlin | 1841: 143 ("nur fossile"), 144 ("jetzt lebende") | 1841 |
| Fragilaria pinnata f. brevistriata | J. Frenguelli | image |
| Fragilaria pinnata f. minor | J. Frenguelli | image |
| Fragilaria pinnata f. minuta | Ant. Mayer | image |
| Fragilaria pinnata f. opephoroides | J. Frenguelli | image |
| Fragilaria pinnata f. subcapitata | P. Fusey | image |
| Fragilaria pinnata subsp. clevei | (J. Pantocsek) G.W.F. Carlson | image |
| Fragilaria pinnata subsp. elliptica | (J. Schumann) G.W.F. Carlson | image |
| Fragilaria pinnata var. acuminata | A. Mayer | Ber. Bayer. Bot. Ges. | 22: 65, pl. III: figs. 5,18,20,21 | 1937 |
| Fragilaria pinnata var. baikalensis | B.V. Skvortzov | image |
| Fragilaria pinnata var. capitata | W. Krieger | Beitr. Naturdenkmalpflege | 13: 265, pl. II: fig. 13 | 1929 |
| Fragilaria pinnata var. elliptica | (J. Schumann) G.W.F. Carlson | image |
| Fragilaria pinnata var. inflata | Ant. Mayer | image |
| Fragilaria pinnata var. intercedens | (A. Grunow) J. Frenguelli | image |
| Fragilaria pinnata var. lancettula | (J. Schumann) F. Hustedt | image |
| Fragilaria pinnata var. lancettula | (Schumann) Hustedt | A. Schmidt's Atlas Diatom.-Kunde: | expl. pl. 297: figs. 51, 59-64 | 1913 |
| Fragilaria pinnata var. lapponica | (A. Grunow) J. Frenguelli | image |
| Fragilaria pinnata var. linearis | Pantocsek | A pozsonyi Orvos-Természettudományi Egyesület közleményei | 23: 30, pl. II: figs. 65, 68 | 1913 |
| Fragilaria pinnata var. ovalis | Pantocsek | Pozsyonyi Orvos-Termeszettudomanyi Egyesulet Kozlemenyei | 23: 30, pl. II: fig. 66, 67 | 1913 |
| Fragilaria pinnata var. parallela | Ant. Mayer | image |
| Fragilaria pinnata var. perlonga | J. Frenguelli | image |
| Fragilaria pinnata var. primigenia | Manguin | Ann. Géol. Service des Mines | 18: 96, pl. II: fig. 31 | 1949 |
| Fragilaria pinnata var. robusta | E.E. Manguin | image |
| Fragilaria pinnata var. subcapitata | Frenguelli | Revista Chilena de Historia Natural | 34: 199, fig. 35,4 | 1930 |
| Fragilaria pinnata var. subrotunda | A. Mayer | Ber. Bayer. Bot. Ges. | 22: 65, pl. III: figs. 6,11 | 1937 |
| Fragilaria pinnata var. subsolitaris | (Grunow) A. Mayer | Ber. Bayer. Bot. Ges. | 22: 66 | 1937 |
| Fragilaria pinnata var. tetragona | J. Frenguelli | image |
| Fragilaria pinnata var. trigona | (Brun & Héribaud) Hustedt | A. Schmidt's Atlas Diat.: | expl. pl. 296: figs. 62-69 | 1913 |
| Fragilaria pinnata var. trigona | (L.A. Brebisson & J. Heribaud) F. Hustedt | image |
| Fragilaria pinnata var. ventriculosa | A. Mayer | Ber. Bayer. Bot. Ges. | 22: 65, pl. III: figs. 16-17; pl. IV: fig. 26 | 1937 |
| Fragilaria pinnatoides | B.J. Cholnoky | image |
| Fragilaria pinnulata | C.G. Ehrenberg | image |
| Fragilaria planctonica | H. Heiden | image |
| Fragilaria planctonica | Heiden in Heiden & Kolbe | Deutsche Südpolar-Exped. 1901-1903, | 8: 549, pl. 6 (36): figs. 126, 127 | 1928 |
| Fragilaria pliocena f. curvata | A. Amosse | image |
| Fragilaria pliocena | J.-J. Brun | image |
| Fragilaria pliocena var. acutaforma | J.-J. Brun | image |
| Fragilaria pliocena var. europaea | A. Cleve-Euler | image |
| Fragilaria polonica | M. Witak & H. Lange-Bertalot in A. Witkowski, H. Lange-Bertalot, & M. Witak | Fragm. Florist. et Geobot. | 40: 736, figs. 39-45 | 1995 |
| Fragilaria polyedra | C.G. Ehrenberg | image |
| Fragilaria polyedra | Ehrenberg | Ber. K. Akad. Wiss. Berlin | 1845: 77, no fig. | 1845 |
| Fragilaria polygonata | A. Cleve-Euler | Kongl. Svenska Vet. Akad. Handl., ser. 4, | 4{1}: 41, no fig. | 1953 |
| Fragilaria pomerooni | C.G. Ehrenberg | image |
| Fragilaria poretzkyana | R.M. Gogorev & E.Y. Kapitonova in Kapitonova & Gogorev | Bot. Zhurn. | 96: 1333, pl. II: figs. 1-3; pl. VII; pl. VIII | 2011 |
| Fragilaria poretzkyana var. rivalis | R.M. Gogorev & E.Y. Kapitonova in Kapitonova & Gogorev | Bot. Zhurn. | 96: 1335, pl. IX | 2011 |
| Fragilaria prae-chankensis | Z. Jouse | image |
| Fragilaria praeleptostauron f. rockefelleri_('rockefellerii') | M. Hajós | image |
| Fragilaria praeleptostauron | M. Hajós | image |
| Fragilaria producta | (Lagerstedt) Grunow in Van Heurck | Syn. Diatom. Belgique: | expl. pl. XLIV: fig. 8 | 1881 |
| Fragilaria producta | (N.G.W. Lagerstedt) A. Grunow | image |
| Fragilaria producta f. distans | A. Mayer | Ber. Bayer. Bot. Ges. | 22: 57, pl. I: fig. 12 in A. Mayer, Denkschr. K. Bayer. Bot. Ges. 69, 1917 (as. F. acuta) | 1937 |
| Fragilaria producta var. bohemica | A. Grunow | image |
| Fragilaria producta var. bohemica | Grunow in Van Heurck | Syn. Diatom. Belgique: | pl. XLIV: fig. 8 | 1881 |
| Fragilaria prolongata | (Grunow) B. Van de Vijver, C.E. Wetzel, W.-H. Kusber & L. Ector | Notulae algarum | 166: 2 | 2020 |
| Fragilaria pseudoatomus | E.E. Manguin | image |
| Fragilaria pseudoconstruens | B. Marciniak | Acta Geologica, Academiae Scientiarum Hungariacae | 25: 163, pl. I: figs. 1, 2 | 1982 |
| Fragilaria pseudoconstruens var. bigibba | B. Marciniak | Acta Geol. Acad. Sci. Hung. | 25: 164, pl. I: figs. 3-6 | 1982 |
| Fragilaria pseudoconstruens var. rhombica | B. Marciniak | Acta Geol. Acad. Sci. Hung. | 25: 164, pl. II: fig. 4 | 1982 |
| Fragilaria pseudocylindrus | E. Manguin ex Kociolek & Reviers | Cryptogamie: Algologie | 17: 177 | 1996 |
| Fragilaria pseudocylindrus | E. Manguin | Rev. Alg. n.s. | 5: 269, pl. I(26): fig. 9 | 1961 |
| Fragilaria pseudocylindrus | E.E. Manguin | image |
| Fragilaria pseudofamiliaris | B. Van de Vijver, T.M. Schuster, W. Kusber & D.M. Williams in Van de Vijver et al. | Fottea | 22: 108, figs. 165-199 | 2022 |
| Fragilaria pseudogaillonii | H. Kobayasi & M. Idei | image |
| Fragilaria pseudolanceolata | J. Pantocsek | image |
| Fragilaria pseudomesolepta | V.S. Poretzky in Proshkina-Lavrenko & Sheshukova (eds.) | Diatomovyi Sbornik: | 30, fig. 3 | 1953 |
| Fragilaria pteridium | C.G. Ehrenberg | image |
| Fragilaria pulchella | (J. Ralfs) H. Lange-Bertalot | image |
| Fragilaria pulchella var. constricta | (Liebetanz) A. Witkowski, H. Lange-Bertalot & D. Metzeltin | Icon. Diatomol. | 7: 53 | 2000 |
| Fragilaria pulchella var. lanceolata | (O'Meara) M. Poulin, L. Bérard-Therriault, & A. Cardinal | Naturaliste Canad. | 111: 358 | 1984 |
| Fragilaria pulchella var. macrocephala | (Grunow) M. Poulin, L. Bérard-Therriault, & A. Cardinal | Naturaliste Canad. | 111: 358 | 1984 |
| Fragilaria punctata | J. John | Nova Hedwigia | 34: 570, Pl. 1 [=fig. 1] | 1981 |
| Fragilaria punctato-striata | E.E. Manguin | image |
| Fragilaria punctiformis | A. Witkowski & D. Metzeltin apud D. Metzeltin & A. Witkowski in H. Lange-Bertalot (ed.) | Iconographia diatomologica | 4: pl. 74: figs. 9, 10 | 1996 |
| Fragilaria pusilla | F.T. Kützing | image |
| Fragilaria quadrata | (Hustedt) H. Lange-Bertalot & D. Metzeltin | Iconogr. Diatomol. | 2: 57 | 1996 |
| Fragilaria quebecensis | (M. Poulin, C. Hudon & A. Cardinal) A. Witkowski, H. Lange-Bertalot & D. Metzeltin | Icon. Diatomol. | 7: 53 | 2000 |
| Fragilaria radians | (F.T. Kützing) D.M. Williams & F.E. Round | image |
| Fragilaria radians | (Kützing) D.M. Williams & F.E. Round | Diatom Res. | 2: 269 | 1988 |
| Fragilaria radians | (Kützing) Lange-Bertalot in Hofmann, Werum, & Lange-Bertalot | Diatomeen im Süsswasser-Benthos von Mitteleuropa: | 274 | 2011 |
| Fragilaria radiantifalsa | B. Van de Vijver & D.M. Williams | Nova Hedwigia | 115: 322, figs. 13-99 | 2022 |
| Fragilaria recapitellata | H. Lange-Bertalot & D. Metzeltin in D. Metzeltin, H. Lange-Bertalot & N. Soninkhishig | Iconogr. Diatomol. | 20: 46 | 2009 |
| Fragilaria reicheltii | (Max Voigt) Lange-Bertalot | Biblioth. Diatomol. | 27: 48 | 1993 |
| Fragilaria reicheltii | (Max Voigt) Lange-Bertalot in Krammer & Lange-Bertalot in H. Ettl et al. (eds.) | Süsswasserfl. Mitteleuropa | 2{3}: 132 | 1991 |
| Fragilaria rhabdosoma | C.G. Ehrenberg | image |
| Fragilaria rhabdosoma | Ehrenberg | Abh. Königl. Akad. Wiss. Berlin, Phys. Kl. | 1833: 249 | 1834 |
| Fragilaria rhabdosoma va. setacea | C.G. Ehrenberg | image |
| Fragilaria rhodana | M.H. Hohn & J. Hellerman | image |
| Fragilaria rhombica | (E. O'Meara) H. Heiden | image |
| Fragilaria rhombica | Cleve | image |
| Fragilaria rhombica | E.V. Østrup | image |
| Fragilaria rhombica f. minima | O.G. Kozlova | image |
| Fragilaria rhombus | (Ehrenberg) Migula | Krypt.-Fl. Deutschl., Alg. | 1: 190 | 1905 |
| Fragilaria rhombus | C.G. Ehrenberg | image |
| Fragilaria rhombus | Ehrenberg | Mikrogeologie, Atlas: | 13, pl. VIII:I: fig. 16 | 1854 |
| Fragilaria riesgoviensis | Schauderna | Palaeontographica | 188: 109, pl. 5: figs. 31-33, pl. 24: figs. 3-6 | 1983 |
| Fragilaria rinoi | F.P. Almeida & C. Delgado | European Journal of Taxonomy | 248: 5, figs. 1, 3-82 | 2016 |
| Fragilaria robusta | F. Hustedt | image |
| Fragilaria rolandschmidtii | D. Metzeltin & H. Lange-Bertalot in H. Lange-Bertalot (ed.) | Iconographia Diatomologica | 5: 90, pl. 1: figs. 14-16 | 1998 |
| Fragilaria rostrata | J. Pantocsek | image |
| Fragilaria rotundata | C.G. Ehrenberg | image |
| Fragilaria rotundissima | P.E. Hargraves & R.R.L. Guillard | image |
| Fragilaria rumpens | (F.T. Kützing) G.W.F. Carlson | image |
| Fragilaria rumpens var. familaris | (F.T. Kützing) A.Cleve-Euler | image |
| Fragilaria rumpens var. familiaris | (Kützing) Cleve-Euler | Kongl. Svenska Vetenskapsakad. Handl., ser. 3 [i.e., 5], | 11{2}: 24 | 1932 |
| Fragilaria rumpens var. meneghiniana | (A. Grunow) H.P. Gandhi | image |
| Fragilaria salina | F.T. Kützing | image |
| Fragilaria salvadoriana | K.J. Krahn & C.E. Wetzel in Krahn et al. | Phytotaxa | 479: 5, figs. 3-23 | 2021 |
| Fragilaria sandellii | B. Van de Vijver & A. Jarlman in Van de Vijver et al. | Beih. Nova Hedwigia | 141: 242, figs. 26-46 | 2012 |
| Fragilaria santaremensis | D. Metzeltin & H. Lange-Bertalot in H. Lange-Bertalot (ed.) | Iconographia Diatomologica | 5: 91, pl. 1: figs. 24-28 (33?); REM-pl. 2: fig. 2 | 1998 |
| Fragilaria saxoplanctonica | H. Lange-Bertalot & S. Ulrich | Lauterbornia | 78: 30, pl. 13: figs. 1-9, 14; pl. 14: figs. 1-8 | 2014 |
| Fragilaria scalaris | C.G. Ehrenberg | image |
| Fragilaria schroeteri | (Meister) H. Lange-Bertalot & S. Ulrich | Lauterbornia | 78: 26 | 2014 |
| Fragilaria schulzii_('schulzi') | C. Brockmann | image |
| Fragilaria schulzii_(`schulzi') | C. Brockmann | Abh. Senckenberg. Naturf. Ges. | 478: 13, pl. 3: fig. 12; pl. 4: fig. 14 | 1950 |
| Fragilaria schwartziana | A. Grunow | image |
| Fragilaria schwarzii | Grunow in Van Heurck | Syn. Diat. Belg.: | pl. XLII: fig. 24 | 1881 |
| Fragilaria scotica | (Grunow) B. Van de Vijver, C.E. Wetzel & L. Ector in Van de Vijver et al. | Fottea | 22: 105 | 2022 |
| Fragilaria seminuda | C.G. Ehrenberg | image |
| Fragilaria seminulum | C.G. Ehrenberg | image |
| Fragilaria semseyana | J. Pantocsek & P. Greguss | image |
| Fragilaria sepes | C.G. Ehrenberg | image |
| Fragilaria sepes | Ehrenberg | Mikrogeologie, Atlas: | 13, pl. XXXVII:I: fig. 8 | 1854 |
| Fragilaria septentrionalis | (Østrup) B. Van de Vijver, C.E. Wetzel & L. Ector in Van de Vijver et al. | Notulae algarum | 157: 2 | 2020 |
| Fragilaria sepulta | J. Pantocsek | image |
| Fragilaria shandongensis | J.-Y. Li | Acta Bot. Sin. | 24: 458, pl. I: figs. 19, 20 [cited figs. 18, 19 in text] | 1982 |
| Fragilaria shiloi | J.J. Lee, C.W. Reimer & M.E. McEnery | image |
| Fragilaria shiloi | J.J. Lee, C.W. Reimer, & M.E. McEnery | Bot. Mar. | 23: 43, fig. 2, pl. II: figs. 12, 13, pl. III: fig.20 | 1980 |
| Fragilaria siamensis | E.V. Østrup | image |
| Fragilaria silendum | Hohn & Hellerman | Trans. Amer. Micr. Soc. | 85: 124, pl. I: fig. 6 | 1966 |
| Fragilaria silendum | M.H. Hohn & J. Hellerman | image |
| Fragilaria similis | G. Krasske | image |
| Fragilaria siolii | F. Hustedt | image |
| Fragilaria siolii | Hustedt | Bot. Not. | 1952: 380, fig. 43 | 1952 |
| Fragilaria skvorzowii | Z. Jouse | image |
| Fragilaria smithiana | A. Grunow | image |
| Fragilaria socia | (J.H. Wallace) H. Lange-Bertalot | image |
| Fragilaria somalica | J. Frenguelli | image |
| Fragilaria sopotensis | A. Witkowski & H. Lange-Bertalot | Limnologica | 23: 67, fig. 6 | 1993 |
| Fragilaria spectra | P.D. Almeida, E. Morales & C.E. Wetzel in Almeida et al. | Phytotaxa | 246: 174, figs. 54-84 | 2016 |
| Fragilaria spicula | Mereschkowsky | image |
| Fragilaria spinarum | H. Lange-Bertalot & D. Metzeltin | Iconogr. Diatomol. | 2: 57, pl. 7: figs. 33-35 | 1996 |
| Fragilaria spinaspeciosa | H. Lange-Bertalot & M. Cantonati in Cantonati et al. | Phytotaxa | 404: 262, figs. 1-13, 69-75 | 2019 |
| Fragilaria spinosa | B.V. Skvortzov | image |
| Fragilaria spinosa | Skvortzov | Philippine J. Sci. | 62: 307, pl. 1: figs. 13, 27; pl. 4: figs. 13, 19; pl. 5: figs. 54, 59 | 1937 |
| Fragilaria spinulifera | F. Hustedt | image |
| Fragilaria spinulosa | Patrick | Not. Nat. Acad. Nat. Sci. Philadelphia | 59: 2 | 1940 |
| Fragilaria spinulosa | R.M. Patrick | image |
| Fragilaria stauroneidea | J. Schumann | image |
| Fragilaria strangulata | (V. Zanon) F. Hustedt | image |
| Fragilaria strangulata f. constricta | N. Woodhead & R.D. Tweed | image |
| Fragilaria strangulata f. inflata | (V. Zanon) F. Hustedt | image |
| Fragilaria strelnikovae | S.I. Genkal & M.I. Yarushina | Novosti Sist. Nizsh. Rast. | 51: 17, pl. II: figs. 4-7 | 2018 |
| Fragilaria striata | C.G. Ehrenberg | image |
| Fragilaria striatula | H.C. Lyngbye | image |
| Fragilaria striatula | P.K.A. Schousboe | image |
| Fragilaria striolata | C.G. Ehrenberg | image |
| Fragilaria striolata | C.G. Ehrenberg | image |
| Fragilaria striolata | C.G. Ehrenberg | image |
| Fragilaria stylidium | C.G. Ehrenberg | image |
| Fragilaria stylus | C.G. Ehrenberg | image |
| Fragilaria subcapitata | E. Messikommer | image |
| Fragilaria subconstricta | E.V. Østrup | image |
| Fragilaria sublika | M.H. Hohn & J. Hellerman | image |
| Fragilaria sublinearis f. lata | H.F. Van Heurck | image |
| Fragilaria sublinearis f. longa | H.F. Van Heurck | image |
| Fragilaria sublinearis | H.F. Van Heurck | image |
| Fragilaria sublinearis var. ambigua | M. Peragallo | image |
| Fragilaria sublineata | F. Hustedt | image |
| Fragilaria submicroscopica | F.R. Schoeman | image |
| Fragilaria submicroscopica | F.R. Schoeman | image |
| Fragilaria submicroscopica | F.R. Schoeman | Rev. Biol. [Lisboa] | 8: 74, figs. 10-12 | 1972 |
| Fragilaria suboldenburgiana | K.E. Camburn & D.F. Charles | Acad. Nat. Sci. Philadelphia Spec. Publ. | 18: 17, pl. 8: figs. 45-53 | 2000 |
| Fragilaria subrecapitellata | B. Van de Vijver, J. Hürlimann, D.M. Williams, C.E. Wetzel & L. Ector in Van de Vijver et al. | Diatom Research | 36: 121, figs. 5-47 | 2021 |
| Fragilaria subsalina | (Grunow) Lange-Bertalot | Biblioth. Diatomol. | 27: 49 | 1993 |
| Fragilaria subsalina | (Grunow) Lange-Bertalot in Krammer & Lange-Bertalot in H. Ettl et al. (eds.) | Süsswasserfl. Mitteleuropa | 2{3}: 138 | 1991 |
| Fragilaria sundaysensis | R.E.M. Archibald | image |
| Fragilaria surirella | C.G. Ehrenberg | image |
| Fragilaria swartzii | A. Grunow | image |
| Fragilaria swartzii | Grunow | Verh. K.K. Zool.-Bot. Ges. Wien | 13: 143, pl. 14: fig. 7 | 1863 |
| Fragilaria synedra | C.G. Ehrenberg | image |
| Fragilaria synegrotesca | Lange-Bertalot | Biblioth. Diatomol. | 27: 49, pl. 12: figs. 1-11; pl. 13: figs. 1-6 | 1993 |
| Fragilaria syriaca | C.G. Ehrenberg | image |
| Fragilaria tabulata | (C.A. Agardh) H. Lange-Bertalot | image |
| Fragilaria tabulata var. australis | (E.E. Manguin) H. Lange-Bertalot | image |
| Fragilaria tabulata var. obtusa | (J. Pantocsek) H. Lange-Bertalot | image |
| Fragilaria tabulata var. parva | (F.T. Kützing) H. Lange-Bertalot | image |
| Fragilaria tabulata var. tenuistriata | (F. Meister) H. Lange-Bertalot | image |
| Fragilaria tabulata var. truncata | (R.K. Greville) H. Lange-Bertalot | image |
| Fragilaria tabulatoides | B.J. Cholnoky | image |
| Fragilaria taenia | C.G. Ehrenberg | image |
| Fragilaria taeniaeformis | (J.E. Smith) S.F. Gray | image |
| Fragilaria taiaensis | J.R. Carter & P. Denny | image |
| Fragilaria telum | J.R. Carter & P. Denny | Nova Hedwigia | 44: 243, pl. 11: fig. 25 | 1987 |
| Fragilaria tenera | (W. Smith) H. Lange-Bertalot | image |
| Fragilaria tenera var. lemanensis | J.C. Druart, S. Lavigne, & M. Robert | Cryptogamie: Algologie | 28: 284, figs. 1-4 | 2007 |
| Fragilaria tenera var. nanana | (H. Lange-Bertalot) H. Lange-Bertalot & S. Ulrich | Lauterbornia | 78: 7 | 2014 |
| Fragilaria tenerrima | P.A.C. Heiberg | image |
| Fragilaria tenuicollis | P.A.C. Heiberg | image |
| Fragilaria tenuicollis var. antarctica | West & G.S. West | Brit. Antarctic Exped. 1907-9 | 1: 279, pl. XXVI: fig. 128 | 1911 |
| Fragilaria tenuicollis var. antarctica | West & West | image |
| Fragilaria tenuis | A. Jurilj | image |
| Fragilaria tenuis | C.A. Agardh | image |
| Fragilaria tenuissima | H. Lange-Bertalot & S. Ulrich | Lauterbornia | 78: 15, pl. 6: figs. 6-13; pl. 7: figs. 1-10 | 2014 |
| Fragilaria tenuistriata | E.V. Østrup | image |
| Fragilaria tessella | C.G. Ehrenberg | image |
| Fragilaria thermalis | C.G. Ehrenberg | image |
| Fragilaria thingvellirensis | B. Van de Vijver & G.S. Jónsson in Van de Vijver et al., | Fottea | 23: 86, figs. 452-493 | 2023 |
| Fragilaria toxoneides | (Castracane) H. Lange-Bertalot | Nova Hedwigia | 33: 252 | 1981 |
| Fragilaria trachea | C.G. Ehrenberg | image |
| Fragilaria trachea | C.G. Ehrenberg | image |
| Fragilaria transylvanica | J. Pantocsek | image |
| Fragilaria triangulata | Moiseeva | image |
| Fragilaria tridentina | M. Cantonati & H. Lange-Bertalot in Cantonati et al. | Phytotaxa | 404: 268, figs. 14-35, 76-81 | 2019 |
| Fragilaria trigibba | J. Pantocsek | image |
| Fragilaria trinodis | C.G. Ehrenberg | image |
| Fragilaria trinodis | C.G. Ehrenberg | image |
| Fragilaria triundulata | A.Ya. Saveleva-Dolgova | image |
| Fragilaria triundulata | E.V. Østrup | image |
| Fragilaria truncata | (Greville) B. Van de Vijver & D.M. Williams | Fottea | 23: 76 | 2023 |
| Fragilaria turgens | C.G. Ehrenberg | image |
| Fragilaria turgidula | C.G. Ehrenberg | image |
| Fragilaria ulna | (C.L. Nitzsch) H. Lange-Bertalot | image |
| Fragilaria ulna var. acus | (F.T. Kützing) H. Lange-Bertalot | image |
| Fragilaria ulna var. aequalis | (Kützing) Pankow, Haendel & Richter | Beih. Nova Hedwigia | 103: 111 | 1991 |
| Fragilaria ulna var. amphirhynchus | (Ehrenberg) Kalinsky | Proceedings of the Louisiana Academy of Sciences | 45: 124 | 1982 |
| Fragilaria ulna var. amphirhynchus | (Ehrenberg) N. Herbst & N.I. Maidana | Nova Hedwigia | 49: 212 | 1989 |
| Fragilaria ulna var. amphyrhynchus | (C.G. Ehrenberg) N. Herbst & N.I. Maidana | image |
| Fragilaria ulna var. biceps | (Kützing) P. Compère | Bull. Jard. Bot. Nat. Belg. | 61: 214 | 1991 |
| Fragilaria ulna var. danica | (Kützing) Kalinsky | Proceedings of the Louisiana Academy of Sciences | 45: 125 | 1982 |
| Fragilaria ulna var. goulardi | (L.A. Brebisson) H. Lange-Bertalot | image |
| Fragilaria ulna var. goulardii_('goulardi') | (Brébisson ex Cleve & Grunow) Lange-Bertalot | Nova Hedwigia | 33: 745 | 1981 |
| Fragilaria ulna var. ungeriana | (A. Grunow) H. Lange-Bertalot | image |
| Fragilaria undata f. panduraeformis | G.L. Rabenhorst | image |
| Fragilaria undata f. stricta | A. Cleve | Bih. K. Svenska Vet. Akad. Handl. | 21(Afd. III, 2): 35 | 1895 |
| Fragilaria undata f. tetranodis | A. Cleve | Bih. K. Svenska Vet. Akad. Handl. | 21(Afd. III, 2): 35 | 1895 |
| Fragilaria undata f. trinodis | (Hustedt) Woodhead & Tweed | Hydrobiologia | 15: 350 | 1960 |
| Fragilaria undata var. brasiliensis | Zimmermann | image |
| Fragilaria undata var. lobata | R.M. Patrick | image |
| Fragilaria undata var. quadrata | F. Hustedt | image |
| Fragilaria undata var. quadrata | Hustedt in Pascher | Süssw.-Fl. | 10, 2.Aufl.: 144, fig. 149B | 1930 |
| Fragilaria undata | W. Smith | Ann. & Mag. Nat. Hist., ser. 2, | 15: 7, pl. I: fig. 7 | 1855 |
| Fragilaria undulata | C.E. Cramer | Hedwigia | 2: 65, pl. XII: fig. 7 | 1863 |
| Fragilaria undulata | C.G. Ehrenberg | image |
| Fragilaria undulata | Corda | Alman. Carlsbad | 5: 207, pl. IV: figs, 39, 40 | 1835 |
| Fragilaria undulata | Cramer | image |
| Fragilaria undulata | Ehrenberg | MIkrogeologie: | 108 | 1854 |
| Fragilaria ungeriana | A. Grunow | image |
| Fragilaria ungeriana | Grunow | Verh. K.K. Zool.-Bot. Ges. Wien | 13: 142, pl. IV: fig. 18 | 1863 |
| Fragilaria unipunctata | H.C. Lyngbye | image |
| Fragilaria utermoehlii | (Hustedt) Lange-Bertalot | Biblioth. Diatomol. | 27: 52 | 1993 |
| Fragilaria utermoehlii | (Hustedt) Lange-Bertalot in Krammer & Lange-Bertalot in H. Ettl et al. (eds.) | Süsswasserfl. Mitteleuropa | 2{3}: 127 | 1991 |
| Fragilaria vandekerckhoveana | B. Van de Vijver in Van de Vijver et al., | Fottea | 23: 91, figs. 494-535 | 2023 |
| Fragilaria vandevondeliana | B. Van de Vijver & L. Ector | Phytotaxa | 468: 93, figs. 76-111 | 2020 |
| Fragilaria vanheurckii var. distans | A. Cleve-Euler | image |
| Fragilaria vanheurckii_('Van | Heurckii') A. Cleve-Euler | image |
| Fragilaria vanheurckii_('Van | Heurckii') M. Peragallo | image |
| Fragilaria vanheurckii_('Van | Heurckii') M. Peragallo | image |
| Fragilaria vaucher - - | | image |
| Fragilaria vaucheriae | (F.T. Kützing) J.B. Petersen | image |
| Fragilaria vaucheriae f. contorta | R.L. Lowe | Proc. Iowa Acad. Sci. | 79: 66, pl. I | 1972 |
| Fragilaria vaucheriae var. capitellata | (Grunow) R. Ross | image |
| Fragilaria vaucheriae var. elliptica | E. Manguin ex Kociolek & Reviers | Cryptogamie: Algologie | 17: 177 | 1996 |
| Fragilaria vaucheriae var. elliptica | E. Manguin | Rev. Alg. n.s. | 5: 270, pl. I(26): fig. 10 | 1961 |
| Fragilaria vaucheriae var. elliptica | E.E. Manguin | image |
| Fragilaria vaucheriae var. kamtchatica | J.B. Petersen | K. Danske Vid. Selsk. Biol. Medd. | 20{1}: 59, fig. 5 | 1946 |
| Fragilaria vaucheriae var. longissima | É. Manguin in P. Bourrelly & É. Manguin | Mém. Inst. Sci. Madagascar, Sér. B, Biol. Vég. | 5: 17, pl. 1: fig. 2 | 1955 |
| Fragilaria vaucheriae var. longissima | E.E. Manguin | image |
| Fragilaria vaucheriae var. manguinii | R. Le Cohu | image |
| Fragilaria vaucheriae var. parvula | (F.T. Kützing) A. Cleve-Euler | image |
| Fragilaria vaucheriae var. perminuta | (Grunow) E.G. Jørgensen | image |
| Fragilaria vaucheriae var. tenuis | É. Manguin in P. Bourrelly & É. Manguin | Mém. Inst. Sci. Madagascar, Sér. B, Biol. Vég. | 5: 17, pl. 1: fig. 3 | 1955 |
| Fragilaria vaucheriae var. tenuis | E.E. Manguin | image |
| Fragilaria vaucheriae var. truncata | (Greville) E.F. Stoermer & J.J. Yang | Great Lakes Research Division Special Report | 47: 90 | 1969 |
| Fragilaria vaucheriae var. villeretii_('villereti') | R. Le Cohu | image |
| Fragilaria vaucheriaefalsa | B. Van de Vijver & D.M. Williams in Van de Vijver et al., | Fottea | 23: 92, figs. 536-598 | 2023 |
| Fragilaria vaucheriaeraetica | M. Cantonati & H. Lange-Bertalot in Cantonati et al. | Phytotaxa | 404: 269, figs. 36-68, 82-85 | 2019 |
| Fragilaria vaucheriaerobusta | B. Van de Vijver, C.E. Wetzel & L. Ector in Van de Vijver et al., | Fottea | 23: 93, figs. 599-685 | 2023 |
| Fragilaria venetiana | B.J. Cholnoky | image |
| Fragilaria venter | C.G. Ehrenberg | image |
| Fragilaria venter | C.G. Ehrenberg | image |
| Fragilaria venter | C.G. Ehrenberg | image |
| Fragilaria venter | C.G. Ehrenberg | image |
| Fragilaria venter | Ehrenberg | Mikrogeol., Atlas: | 13, pl. XIV: fig. 50; pl. IX:I: figs. 6, 7; pl. XXXVIII:A:XIV: figs. 3, 4a,b; pl. XI: fig. 14; pl. XIII:I: fig. 4; pl. VIII:I: fig. 12 | 1854 |
| Fragilaria ventralis | C.G. Ehrenberg | image |
| Fragilaria ventricosa | C.G. Ehrenberg | image |
| Fragilaria ventriculus | C.G. Ehrenberg | image |
| Fragilaria viereckiana | Gerd Moser | Biblioth. Diatomol. | 43: 127, pl. 2; pl. 3: fig. 2 | 1999 |
| Fragilaria vinaninkarenae | Manguin | Ann. Géol. Service des Mines | 18: 96, pl. II: fig. 32 | 1949 |
| Fragilaria virescens f. angustata | E.E. Manguin | image |
| Fragilaria virescens f. clavata | A. Grunow | image |
| Fragilaria virescens f. clavata | Grunow in Van Heurck | Syn. Diatom. Belgique: | pl. XLIV: fig. 4 | 1881 |
| Fragilaria virescens f. curta | A. Cleve-Euler | image |
| Fragilaria virescens f. curta | A. Mayer | Ber. Bayer. Bot. Ges. | 22: 52, pl. I: figs. 8,9 | 1937 |
| Fragilaria virescens f. elongata | M. Peragallo & J. Heribaud | image |
| Fragilaria virescens f. major | J. Frenguelli | image |
| Fragilaria virescens f. nipponica | B.V. Skvortzov | image |
| Fragilaria virescens f. parva "Kützing" | | image |
| Fragilaria virescens f. paucicostata | Thomas & E.A. Gonzalves | image |
| Fragilaria virescens f. sphaerophora | A. Cleve-Euler | image |
| Fragilaria virescens | J. Ralfs | image |
| Fragilaria virescens var. acicularis | B.V. Skvortzov | image |
| Fragilaria virescens var. acuminata | A. Mayer | Ber. Bayer. Bot. Ges. | 22: 53, pl. I: figs. 28,29 | 1937 |
| Fragilaria virescens var. acuta | G. Istvanfy de Csík Madefalva | image |
| Fragilaria virescens var. balatonis | G. Istvanfy de Csík Madefalva | image |
| Fragilaria virescens var. birostrata | A. Mayer | Denkschr. K. Bayer. Bot. Ges. | 13: 19, pl. I: fig. 1 | 1917 |
| Fragilaria virescens var. capitata | Østrup | Danske Diat.: | 193, pl. V: fig. 125 | 1910 |
| Fragilaria virescens var. capitata | E.V. Østrup | image |
| Fragilaria virescens var. capitata | G. Krasske | image |
| Fragilaria virescens var. diatomacea | A. Grunow | image |
| Fragilaria virescens var. elliptica | F. Hustedt | image |
| Fragilaria virescens var. elliptica | F. Hustedt | image |
| Fragilaria virescens var. elliptica | Hustedt | Arch. Hydrobiol. u. Planktonk. | 10: 37, pl. I: fig. 8 | 1914 |
| Fragilaria virescens var. elongata | Héribaud | image |
| Fragilaria virescens var. exigua | A. Grunow | image |
| Fragilaria virescens var. exigua | Grunow in Van Heurck | Syn. Diatom. Belgique: | pl. XLIV: figs. 2, 3 | 1881 |
| Fragilaria virescens var. fuegiana | J. Frenguelli | image |
| Fragilaria virescens var. genuina | Ant. Mayer | image |
| Fragilaria virescens var. halophila | E. Liebetanz | image |
| Fragilaria virescens var. inflata | (Heiden) P. Schulz | Bot. Arch. Konigsberg | 13: 187 | 1926 |
| Fragilaria virescens var. lata | O. Müller | image |
| Fragilaria virescens var. linearis | B.V. Skvortzov | image |
| Fragilaria virescens var. mesolepta | (Rabenhorst) Schönfeldt | Diat. Germ.: | 99 | 1907 |
| Fragilaria virescens var. nipha | M.H. Hohn & J. Hellerman | image |
| Fragilaria virescens var. nipponica | (B.V. Skvortzov) B.V. Skvortzov & M. Noda | image |
| Fragilaria virescens var. obesa | A. Lauby | image |
| Fragilaria virescens var. oblongella | A. Grunow | image |
| Fragilaria virescens var. oblongella | Grunow in Van Heurck | Syn. Diat. Belgique: | pl. XLIV: fig. 6 | 1881 |
| Fragilaria virescens var. obtusa | B.V. Skvortzov | image |
| Fragilaria virescens var. quebecensis | M. Poulin, C. Hudon, & A. Cardinal | Naturaliste Canad. | 109: 279, figs. 1a, 3-6 | 1982 |
| Fragilaria virescens var. rostratus | B.V. Skvortzov | image |
| Fragilaria virescens var. subsalina | A. Grunow | image |
| Fragilaria virescens var. subsalina | Grunow in Van Heurck | Syn. Diatom. Belgique: | pl. XLIV: fig. 5 | 1881 |
| Fragilaria virescens var. torus | M.H. Hohn & J. Hellerman | image |
| Fragilaria virescens var. undata | (W. Smith) A. Grunow | image |
| Fragilaria virescens var. undatiformis | A. Mayer | Ber. Bayer. Bot. Ges. | 22: 53, pl. I: figs. 17-19 | 1937 |
| Fragilaria virescens var. undulata | H. Okuno | Atlas Foss. Diat.: | 31, pl. 22: figs. 5-7 | 1952 |
| Fragilaria virescens var. ventricosa | M. Peragallo & J. Heribaud | image |
| Fragilaria vitrea | (F.T. Kützing) A. Grunow | image |
| Fragilaria vitrea var. arcuata | K.S. Mereschkowsky | image |
| Fragilaria vitrea var. minima | (J. Ralfs) A. Grunow | image |
| Fragilaria vitrea var. minima | (Ralfs) Grunow in Van Heurck | Syn. Diatom. Belgique: | expl. pl. XLIV: figs. 16C-E-18 | 1881 |
| Fragilaria voeringia | J. Fenner in Schrader & Fenner | Initial Rep. Deep Sea Drilling Project | 38: 981, pl. 25: figs. 22-24 | 1976 |
| Fragilaria vulgaris | C.G. Ehrenberg | image |
| Fragilaria vulgaris var. subundulata | B.V. Skvortzov | image |
| Fragilaria walkerarnottiana | B. Van de Vijver & D.M. Williams | Nova Hedwigia | 115: 333, figs. 163-229 | 2022 |
| Fragilaria woerthensis | Ant. Mayer | image |
| Fragilaria zafarii | P.T. Sarode & N.D. Kamat | image |
| Fragilaria zasuminensis | I. Cabejszekówna | image |
| Fragilaria zeilleri f. anomala | E.V. Østrup | image |
| Fragilaria zeilleri f. anomala | J. Heribaud | image |
| Fragilaria zeilleri | J. Heribaud | image |
| Fragilaria zeilleri var. africana | F. Gasse | Rev. Algol., n.s., | 13: 110, pl. II: fig. 11 | 1978 |
| Fragilaria zeilleri var. densestriata | J. Heribaud | image |
| Fragilaria zeilleri var. elliptica | F. Gasse | Rev. Algol., Mém. | 3: pl. 33: fig. 7 | 1980 |
| Fragilaria zeilleri var. nitzschioides | J. Heribaud | image |
| FRAGILARIACEAE | Bessey | image |
| FRAGILARIACEAE | Karsten | image |
| FRAGILARIACEAE | Lemmermann | image |
| FRAGILARIALES | Silva | image |
| Melotomus fragilaria | Corda | Alman. Carlsbad | 5: 210, pl. VI: fig. 82 | 1835 |
| NEOFRAGILARIA | T.V. Desikachary, A.K.S.K. Prasad & P. Prema | image |
| NEOFRAGILARIA | Williams & Round | image |
| Neofragilaria acidobiontica | (D.F. Charles) D. Williams & Round | Diatom Research | 2: 282 | 1988 |
| Neofragilaria anomala | (Giffen) A. Witkowski & P. Dabek in Li et al. | PLos ONE | 10{10}: 10 | 2015 |
| Neofragilaria bicapitata | (A. Mayer) Williams & Round | Diatom Research | 2: 282 | 1988 |
| Neofragilaria constricta | (Ehrenberg) Williams & Round | image |
| Neofragilaria lata | (Cleve-Euler) Williams & Round | image |
| Neofragilaria lineata | A. Witkowski & P. Dabek in Li et al. | PLos ONE | 10{10}: 10 | 2015 |
| Neofragilaria montgomeryi_('montgomeryii') | M. Ashworth & Chunlian Li in Li et al. | Molecular Phylogenetics and Evolution | 148(106808): 19, fig. 8e, fig. 9o,p, fig. 14 | 2020 |
| Neofragilaria nicobarica | Desikachary, Prasad, & Prema | image |
| Neofragilaria stilus | M. Krzywda, A. Witkowski & Chunlian Li in Li et al. | PLos ONE | 10{10}: 10, figs. 8, 9 | 2015 |
| Neofragilaria strangulata | (Zanon) Williams & Round | image |
| Neofragilaria virescens | (Ralfs) Williams & Round | image |
| Neofragilaria virescens var. oblongella | (Grunow) L.N. Bukhtiyarova | Algologia | 5: 418 | 1995 |
| Stichostaura fragilaria | Ehrenberg | image |
| Synedra amphirhynchus var. fragilariaeformis | F.E. Fritsch & M.F. Rich | image |
| Synedra amphirhynchus var. fragilariiformis_('fragilariaeformis') | F.E. Fritsch & M.F. Rich | Trans. Roy. Soc. S. Afr. | 11: 379, fig. 30A-C | 1924 |
| Ulnaria fragilariiformis_('fragilariaeformis') | (F.E. Fritsch & M.F. Rich) D.M. Williams | Botany Letters | 167: 76 | 2019 |