| Name | Author | Source | Citation | Year |
|---|
| Synedra planktonica | J.J. Hains & M.M. Sebring | Trans. Amer. Microscop. Soc. | 100: 160, figs. 2-9 | 1981 |
| Synedra campyla | Hilse in Rabenhorst | Alg. Eur. Dec.: 103/104: | 1024a | 1861 |
| Hyalosynedra toxoneides | (Castracane) J.J. Perez Coca, Y.T. Chang, W.L. Wang & M.Y. Wang in Perez Coca et al. | Nova Hedwigia | 104: 514 | 2016 |
| Synedra ulna var. anhuiensis | J.G. Yang | Bulletin of Botanical Research [Harbin] | 10: 11, fig. 1 | 1990 |
| Synedra parasitica var. subconstricta | (Grunow) Hustedt in Pascher | Süssw.-Fl. | 10: 161 | 1930 |
| Synedra parasitica | (W. Smith) Hustedt in Pascher | Süssw.-Fl. | 10: 161 | 1930 |
| Synedra cyclopum | Brutschy | Int. Rev. Hydrobiol. u. Hydrogr. | 10: 284, figs. 11-13 | 1922 |
| Synedra helvetica | Brutschy | Int. Rev. Hydrobiol. u. Hydrogr. | 10: 286, figs. 12b | 1922 |
| Synedra ulna var. constricta | Venkataraman | Proc. Indian Acad. Sci., sect. B | 10: 308, text-fig. 36 | 1939 |
| Synedra acus var. ostenfeldii | Willi Krieger | Pflanzenforschung | 10: 36, pl. III: fig. 29 | 1927 |
| Synedra ulna var. subcontracta | Østrup in Héribaud | Ann. Biol. Lacustre | 10: 54, pl. VII: fig. 46 | 1920 |
| Synedra inflata | Heiden | Mitth. Mecklenb. Geol. Landesanst. | 10{21}: 14, fig. 19 | 1900 |
| Synedra acus subsp. ostenfeldii | (Willi Krieger) Skabichevskii | Fauny Flory SSSR Otdel Bot., N.S., Vyp. | 11: 253 | 1960 |
| Pseudo-synedra peragalloi_('peragallii') | Leuduger-Fortmorel | Ann. Jard. Bot. Buitenzorg | 11: 31, pl. V: fig. 2 | 1892 |
| Pseudo-synedra debyi | Leuduger-Fortmorel | Ann. Jard. Bot. Buitenzorg | 11: 32, pl. V: fig. 3 | 1892 |
| Synedra amphirhynchus var. fragilariiformis_('fragilariaeformis') | F.E. Fritsch & M.F. Rich | Trans. Roy. Soc. S. Afr. | 11: 379, fig. 30A-C | 1924 |
| Synedra cyclopum var. gibbosa | F. Moghadam | Proc. Acad. Nat. Sci. Philadelphia | 121: 178, pl. 1: fig. b | 1969 |
| Synedra monodii_('monodi') | Guermeur | Cat. Inst. Franc\*,. Afrique Noire | 12: 27, pl. II: fig. 1 | 1954 |
| Synedra mazamaensis var. changbaiensis | W.M. Bao & C. Reimer | Bulletin of Botanical Research [Harbin] | 12: 357, pl. 1: fig. 2 | 1992 |
| SYNEDRA "Gruppe" ULNARIA | Grunow | Verh. K.K. Zool.-Bot. Ges. Wien | 12: 386 | 1862 |
| Synedra lunaris var. capitata | Grunow | Verh. K.K. Zool.-Bot. Ges. Wien | 12: 389 | 1862 |
| Synedra lunaris var. genuina | Grunow | Verh. K.K. Zool.-Bot. Ges. Wien | 12: 389 | 1862 |
| Synedra arctica | Grunow | Verh. K.K. Zool.-Bot. Ges. Wien | 12: 401, pl. V: fig. 3 | 1862 |
| Synedra camtschatica | Grunow | Verh. K.K. Zool.-Bot. Ges. Wien | 12: 404, pl. V: fig. 6 [miscited fig. b] | 1862 |
| Synedra indica | F.J.R. Taylor | Nova Hedwigia | 12: 440, pl. 90(3): figs. 22-24 | 1967 |
| Synedra regalis | F.J.R. Taylor | Nova Hedwigia | 12: 441, pl. 91(4): figs. 31-33 | 1967 |
| Synedra gandhii | Guiry & Karthick in Guiry et al. | Notulae algarum | 133: 8, description and illustration in Gandhi (1998: 81, pl. IV: fig. 200) | 2020 |
| Synedra scotica | (Grunow) A. Mayer | Denkschr. K. Bayer. Bot. Ges. | 13: 22 | 1917 |
| Synedra rumpens f. curta | A. Mayer | Denkschr. K. Bayer. Bot. Ges. | 13: 22, pl. I: fig. 31 | 1917 |
| Synedra scotica var. undulata | A. Mayer | Denkschr. K. Bayer. Bot. Ges. | 13: 23, pl. I: fig. 33 | 1917 |
| Synedra cyclophoroides | S.C. Liu | Acta Oceanologica Sinica | 13: 579, pl. I: fig. 3 | 1994 |
| Synedra goulardii var. teletzkensis | V.S. Poretzky in Proshkina-Lavrenko & Sheshukova (eds.) | Diatomovyi Sbornik: | 146, fig. 5, text-fig. 2 | 1953 |
| Synedra ulna var. delicatula | (Ant. Mayer) A.D. Hardy ex R.A. Townsend in Townsend & Guiry | Notulae algarum | 149: 1 | 2020 |
| Synedra arctica | O'Meara | Quart. J. Microscop. Sci., ser. 2, | 14: 260, pl. VIII: fig. 11 | 1874 |
| Synedra gigantea | Lobarzewsky | Linnaea | 14: 276, pl. VI | 1840 |
| Synedra phantasma | M.H. Hohn | Monogr. Acad. Nat. Sci. Philad. | 14: 464, pl. 1: fig. 2 | 1966 |
| Synedra cyclopum var. incisa | G.A. Cunningham | J. Phycol. | 14: 528, fig. 1 | 1978 |
| Synedra amphicephala var. fallax | (Grunow) Fontell | Ark. Bot. | 14{21}: 60 | 1917 |
| Synedra inaequalis var. jumlensis | I. Jüttner & E.J. Cox in I. Jüttner, E.J. Cox, & S.J. Ormerod | Diatom Research | 15: 249, figs. 26-37 | 2000 |
| Neosynedra delicatissima | (Proshkina-Lavrenko) L.N. Bukhtiyarova in Bukhtiyarova & Compère | Algologia | 16: 281 | 2006 |
| Asterionella synedriformis_(`synedraeformis') | Greville | Ann. & Mag. Nat. Hist., ser. 3, | 16: 4, pl. V: figs. 5, 6 | 1865 |
| Synedra camtschatica var. finnmarchica | Cleve & Grunow in Grunow | Kongl. Svenska Vetensk.-Akad. Handl., ser. 4, | 17{2}: 106, pl. VI: fig. 113 | 1880 |
| Synedra filiformis | Grunow | K. Svenska Vet.-Akad. Handl, ser. 4, | 17{2}: 106, pl. VI: fig. 116 | 1880 |
| Synedra pulchella var. macrocephala | Grunow | Kongl. Svenska Vetensk.-Akad. Handl., ser. 4, | 17{2}: 107 | 1880 |
| Synedra goulardii_('goulardi') | Brébisson ex Cleve & Grunow | K. Svenska Vet.-Akad. Handl, ser. 4, | 17{2}: 107, pl. VI: fig. 119 | 1880 |
| Synedra ulna var. crassa | Østrup | Danske Diat.: | 183, pl. V: fig. 111 | 1910 |
| Synedra bilunaris | Ehrenberg | Abh. Königl. Akad. Wiss. Berlin, Phys. Kl. | 1831: 87 | 1832 |
| Synedra lunaris | Ehrenberg | Abh. Königl. Akad. Wiss. Berlin, Phys. Kl. | 1831: 87 | 1832 |
| Synedra gaillonii | (Bory) Ehrenberg | Abh. Königl. Akad. Wiss. Berlin, Phys. Kl. | 1833: 259 | 1834 |
| Synedra cuneata | (Lyngbye) Ehrenberg | Abh. Königl. Akad. Wiss. Berlin, Phys. Kl. | 1833: 272 | 1834 |
| Synedra capitata | Ehrenberg | Mitt. Ges. Naturf. Freunde Berlin | 1836: 50 | 1837 |
| Synedra capitata | Ehrenberg | Ber. K. Akad. Wiss. Berlin | 1836: 53 | 1836 |
| Synedra hemicyclus | Ehrenberg | Ber. K. Akad. Wiss. Berlin | 1837: 45 | 1837 |
| Synedra hemicyclus | Ehrenberg | Ber. K. Akad. Wiss. Berlin | 1838: 6 | 1838 |
| Synedra hemicyclus | Ehrenberg | Ber. K. Akad. Wiss. Berlin | 1840: 217 | 1840 |
| Synedra scalaris | Ehrenberg | Abh. K. Akad. Wiss. Berlin, Physik. Kl. | 1841: 425, pl. II: fig. II.18 | 1843 |
| Synedra amphirhynchus | Ehrenberg | Abh. Königl. Akad. Wiss. Berlin, Phys. Kl. | 1841: 425, pl. III: fig. I.25 | 1843 |
| Synedra splendida | Ehrenberg | Abh. K. Akad. Wiss. Berlin, Physik. Kl. | 1870: 59, pl. III:II:fig. 3 | 1871 |
| Synedra tabulata var. thalassiothrix_('thalassotrix') | (Cleve) A. Schwarz in O. Müller | Sitz.-Ber. Ges. Naturf. Freunde Berlin | 1877: 164 | 1877 |
| Synedra laevigata var. hyalina | Grunow | Month. Micr. J. | 18: 166, pl. CXCIII: fig. 5 | 1877 |
| Synedra crystallina var. insignis | Grunow | Monthly Microscop. J. | 18: 167, pl. CXCIII: fig. 11 | 1877 |
| Synedra crystallina var. bacillaris | Grunow | Month. Micr. J. | 18: 167, pl. CXCIII: fig. 12 | 1877 |
| Synedra capillaris | Grunow | Monthly Micr. J. | 18: 168, pl. CXCIV: fig. 2 | 1877 |
| Synedra berolinensis | Lemmermann | Ber. Deutsch. Bot. Ges. | 18: 31 | 1900 |
| Synedra pulchella f. constricta | Liebetanz | Bull. Int. Acad. Polon., Sc. et Lett., Cl. Sc. Math. et Nat., ser. B, | 1925: 110, pl. 4: figs. 1, 2 | 1925 |
| Synedra fontinalis | W. Smith | Ann. Mag. Nat. Hist. ser. 2, | 19: 9. pl. I: fig. 9 | 1857 |
| Synedra gomphonema | Janisch & Rabenhorst in Rabenhorst, | Beitr. Kenntn. u. Verbr. Alg.: | 1: 13, pl. II: fig. 6 | 1863 |
| Synedra karstenii | Migula | Krypt.-Fl. Deutschl., Alg. | 1: 196, pl. VII.C: fig. 16 | 1905 |
| Synedra delicatula | Ant. Mayer | Krypt. Forsch. | 1: 197, 212, no fig. | 1919 |
| Synedra curvata | Østrup | Bot. Iceland: | 1: 370, pl. 1: fig. 14 | 1916 |
| Synedra clava | O. Witt | J. Mus. Godeffroy [Hamburg] | 1: 70, pl. 8: fig. 14 | 1873 |
| Synedra delicatissima | W. Smith | Syn. Brit. Diat. | 1: 72, pl. XII: fig. 94 | 1853 |
| Synedra thalassiothrix_('Thalassotrix') | Cleve | Bih. K. Svenska Vet.-Akad. Handl. | 1{13}: 22, pl. IV: fig. 24 | 1873 |
| Synedra pulchella var. lanceolata | O'Meara | Proc. Roy. Irish Acad., ser. 2, | 2(Sci.): 304, pl. 28: fig. 20 | 1875 |
| Synedra tortuosa | D.M. Williams & D. Metzeltin | Diatom | 20: 58, figs. 1-16 | 2004 |
| PSEUDOSYNEDRA | C.S. Boyer | Syn. N. Amer. Diat.: | 212 | 1927 |
| Pseudosynedra peragalloi_('peragalli') | C.S. Boyer | Syn. N. Amer. Diat.: | 212, pl. V: fig. 2 in Leuduger-Fortmorel 1892 | 1927 |
| Synedra hennedyana | Gregory | Trans. Roy. Soc. Edinburgh | 21: 532, pl. XIV: fig. 108 | 1857 |
| Synedra delicatissima | (Proshkina-Lavrenko) Gusliakov in Gusliakov et al. | Atlas of diatoms of benthos of the northwestern Black Sea: | 23 | 1992 |
| Synedra lanceolata var. abreviata | Pantocsek | Pozsyonyi Orvos-Termeszettudomanyi Egyesulet Kozlemenyei | 23: 29, pl. II: fig. 47 | 1913 |
| Synedra ulna var. crassa | Pantocsek | Pozsyonyi Orvos-Termeszettudomanyi Egyesulet Kozlemenyei | 23: 29, pl. II: fig. 48 | 1913 |
| Synedra ulna var. crassa | G.S. Venkataraman | Proc. Natl. Inst. Sci. India, Biol. Sci. | 23: 80, fig. 13 | 1957 |
| Synedra brebissonii | Castracane | Atti dell'Accademia Pontificia De' Nuovi Lincei | 24: 28 | 1871 |
| Synedra grandis | Mereschkowsky | Zap. Novorossijsk. Obshch. Estestvoisp. | 24{2}: 46, 66, figs. 4-8 | 1902 |
| Synedra ulna var. repanda | Q.X. Wang & Q.M. You in Q.M. You et al. | Chinese Journal of Oceanology and Limnology | 26: 419, fig. 1 | 2008 |
| ALTERASYNEDRA | Lange-Bertalot | Biblioth. Diatomol. | 27: 52 | 1993 |
| FRAGILARIA subg. ALTERASYNEDRA | Lange-Bertalot | Biblioth. Diatomol. | 27: 52 | 1993 |
| Synedra ulna var. contracta | Østrup | Bot. Faeröes: | 281, fig. 47 | 1901 |
| Synedra sicula | Castracane | Atti dell'Accademia Pontificia de'Nuovi Lincei | 28: 396, fig. 7 | 1875 |
| Synedra acus var. varipunctata | J. John | Cryptog.: Algol. | 2: 132, pl. I: figs. 1-3; pl. II: figs. 4-6 | 1981 |
| Synedra familiaris f. neogena | Grunow | Beitr. Paläont. Österr.-Ung. | 2: 139, pl. XXIX: fig. 15 | 1882 |
| Synedra familiaris var. neogena | Grunow | Beitr. Paläont. Österr.-Ung. | 2: 139, pl. XXIX: fig. 15 | 1882 |
| Synedra normaniana | Greville | Quart. J. Micr. Sci., ser. 2, | 2: 231, pl. X: figs. 1-3 | 1862 |
| Synedra arcuata | Wigand | Hedwigia | 2: 44, pl. VII: fig. 15 | 1860 |
| Synedra capitulata | Castracane | Challenger Exped., Bot. | 2: 52, pl. XXV: fig. 13 | 1886 |
| Synedra fasciculata var. obtusa | Pantocsek | Beitr. Kenntn. Foss. Bacill. Ungarns | 2: 64, pl. 26: figs. 377, 380 | 1889 |
| Synedra undulata | Schumann | Schr. Königl. Phys.-Ökon. Ges. Königsberg | 3(Abh.): 186, pl. VIII: fig. 24 | 1863 |
| Synedra pulchella var. vertebra | (W. Gregory) Van Heurck | Treat. Diat.: | 309 | 1896 |
| Synedra tibialis | Tempère & J. Brun in Brun & Tempère | Mém. Soc. Phys. et Hist. Nat. Genève | 30{9}: 58, pl. VII: fig. 12 | 1889 |
| Synedra capitata var. cuneata | V.S. Poretzkiy in Proshkina-Lavrenko & V.S. Seshukova (eds.) | Diatomovyi Sbornik: | 31, fig. 4 | 1953 |
| Synedra jouseana | V.S. Sheshukova-Poretskaya | Uchen. Zap. Leningradsk. Univ. | 313(=Biol. Nauk 49): 208, fig. 4 | 1962 |
| Synedra bananaensis | Kufferath | Bulletin de l'Institut Royal des Sciences Naturelles de Belgique | 32{34}: 49, pl. 3: fig. 8 | 1956 |
| Synedra socia | J.H. Wallace | Not. Nat. Acad. Nat. Sci. Philadelphia | 331: 1, pl. 1: fig. 1 | 1881 |
| Synedra calva | Castracane | Atti dell'Accademia Pontificia de'Nuovi Lincei | 33: 105 | 1880 |
| Synedra toxoneides | Castracane | Atti dell'Accademia Pontificia de'Nuovi Lincei | 33: 105 | 1880 |
| Synedra ulna var. tolstensis | Rattray | Trans. Royal Soc. Edinburgh | 33: 437, pl. XXIX: fig. 12 | 1888 |
| Synedra pelagica | Cleve-Euler | Acta Univ. Lund. N.F. [Lunds Univ. A\*orsskr., ser. 2], Avd. 2, | 33{9}: 45, fig. 16 | 1937 (after 2.vi) |
| Hyalosynedra al-turkii | J.S.M. Sabir & E.C. Theriot in Sabir et al. | Phytotaxa | 347: 16, figs. 27-32 | 2018 |
| Hyalosynedra al-shareefii | J.S.M. Sabir & E.C. Theriot in Sabir et al. | Phytotaxa | 347: 16, figs. 33-36 | 2018 |
| Hyalosynedra prasadii | E.C. Theriot & M.A. Ashworth in Sabir et al. | Phytotaxa | 347: 18, figs. 37-43 | 2018 |
| Synedra ulna f. danica | (Kützing) Hustedt | Abh. Naturw. Ver. Bremen | 34: 236 | 1957 |
| Synedra lenzii_('lenzi') | G. Krasske | Arch. Hydrobiol. | 35: 554, pl. XIX: fig3. 3-7 | 1939 |
| Synedra tenera var. sinica | Skvortzov | Publ. Mus. Hoangho Paiho Tien Tsin | 36: 18, pl. 4: fig. 8 | 1935 |
| Synedra amphicephala var. asiatica | Skvortzov | Publ. Mus. Hoangho Paiho Tien Tsin | 36: 6, pl. 1: fig. 10 | 1935 |
| Synedra licentii_('Licenti') | Skvortzov | Publ. Mus. Hoangho Paiho Tien Tsin | 36: 6, pl. 1: fig. 9 | 1935 |
| Synedra affinis var. sinica | Skvortzov | Publ. Mus. Hoangho Paiho Tien Tsin | 36: 7, pl. 1: fig. 13 | 1935 |
| Synedra nyansae | G.S. West | J. Linn. Soc., London. Botany | 38: 149, pl. 8: fig. 3 | 1907 |
| Synedra capitata | Ehrenberg | Ann. Phys. u. Chem. | 38: 221, pl. III: figs. III-1 | 1836 |
| Synedra fragilis | E. Manguin | Rev. Algol., ser. 2, | 3: 123, pl. V: fig. 22 | 1957 |
| Synedra tabulata var. lata | Giffen | Bacillaria | 3: 153, pl. 2: figs. 40, 41 | 1980 |
| Synedra fulgens var. fenestrata | V. Zanon | Bollettino di pesca, piscicoltura e idrobiologia | 3: 210, fig. 8 | 1948 |
| Synedra vertebra | W. Gregory | Quarterly Journal of Microscopical Science | 3: 41, pl. IV: fig. 22 | 1855 |
| Synedra hyperborea | Grunow in Cleve | Vega-Exped. Vet. Iaktt. | 3: 482 | 1883 |
| Synedra inaequalis | H. Kobayasi in H. Kobayasi et al. | Diatom | 3: 9, pl. 1: figs. 2-7; pl. 2: figs. 8-13 | 1987 |
| Synedra minutissima var. pelliculosa | Kützing | Sp. Alg.: | 40 | 1849 |
| Synedra atomus | (Kützing) Nägeli ex Kützing | Sp. alg.: | 40 | 1849 |
| Synedra alpina | Nägeli ex Kützing | Sp. Alg.: | 43 | 1849 |
| Synedra falcata | Kützing & Brébisson in Kützing | Sp. Alg.: | 43 | 1849 |
| Synedra subarcuata | Nägeli ex Kützing | Sp. Alg.: | 43 | 1849 |
| Synedra vaucheriae var. septentrionalis | Østrup | Medd. Gronland | 43: 250, pl. XIV: fig. 19 | 1910 |
| Synedra filiformis | J.R. Carter & P. Denny | Nova Hedwigia | 44: 270, pl. 9: fig. 32 | 1987 |
| SYNEDRA subg. ULNARIA | (Kützing) Frenguelli | Boll. Soc. Geol. Ital. | 47: 234 | 1929 |
| Synedra hyperborea | Grunow | Denkschr. Kaiserlich. Akad. Wiss. [Wien], Math.-Naturwiss. Cl. | 48{2}: 106. pl. II(B): fig. 4 | 1884 |
| Synedra flexuosa | Brébisson ex Kützing | Bot. Zeit. | 4: 248 | 1846 |
| Synedra pachycephala | Brébisson & Kützing in Kützing | Bot. Zeit. | 4: 249 | 1846 |
| Synedra parasitica f. lata | Cleve-Euler | K. Svenska Vet.-Akad. Handl., ser. 4, | 4{1}: 56, fig. 372a,e | 1953 |
| Synedra perexigua | A. Cleve-Euler | Kongl. Svenska Vet. Akad. Handl., ser. 4, | 4{1}: 60, fig. 380c | 1953 |
| Synedra tabulata var. rostrata | (Juhlin-Dannfelt) Cleve-Euler | K. Svenska Vet.-Akad. Handl., ser. 4, | 4{1}: 71 | 1953 |
| Hyalosynedra lanceolata | M.D. Belando, J.F. Jiménez & M. Aboal in Belando et al. | European J. Phycol. | 53: 210, figs. 1-25 | 2018 |
| Synedra capilla | J.R. Carter & P. Denny | Nova Hedwigia | 54: 204 | 1992 |
| Synedra kerguelensis var. antarctica | J. Frenguelli & H.A. Orlando | Publ. Inst. Antárt. Argent. | 5: 110, pl. IV: figs. 9-16 | 1958 |
| Synedra bilunaris var. elongata | Sande Lacoste & Suringar | Ned. Kruidk. Arch. | 5: 287 | 1861 |
| Synedra subula | Sande Lacoste & Suringar | Ned. Kruidk. Arch. | 5: 289 | 1861 |
| Synedra baculus | Gregory | Trans. Micr. Soc. London ser. 2, | 5: 83, pl. I: fig. 54 | 1857 |
| Synedra flexuosa var. angusta | Brébisson ex Kützing | Sp. Alg.: | 6 | 1849 |
| Hyalosynedra hyalina | (Grunow) I. Álvarez-Blanco & S. Blanco | Biblioth. Diatomol. | 60: 105 | 2014 |
| Hyalosynedra sublaevigata | I. Álvarez-Blanco & S. Blanco | Biblioth. Diatomol. | 60: 105, pl. 9: figs. 31-33; pl. 54 | 2014 |
| Synedra medioconstricta_('mediocontracta') | (Forti) E. Taskin & T. Atici in E. Taskin et al. | Türkiye suyosunlari listei [Turkey algae list]: | 61 | 2019 |
| Synedra biasolettiana | Kützing | Bacillarien: | 63, pl. 3: fig. XXII | 1844 |
| Synedra minutissima | Kützing | Bacillarien: | 63: pl. 3: fig. XXX | 1844 |
| Synedra dissipata | Kützing | Kieselschal. Bacill.: | 64 | 1844 |
| Synedra constricta | Kützing | Bacillarien: | 64, pl. 3: fig. LXX | 1844 |
| Synedra amphicephala | Kützing | Bacillarien: | 64, pl. 3: fig. XII | 1844 |
| SYNEDRA [unranked] ULNARIA | Kützing | Bacillarien: | 65 | 1844 |
| Synedra notata | Kützing | Kieselschal. Bacill.: | 65, pl. 3: fig. XXXIII | 1844 |
| Eunotia synedriformis_('synedraeformis') | Hustedt | Ber. Deutsch. Bot. Ges. | 65: 137, pl. V: fig. 8 | 1952 |
| Synedra aequalis | (Kützing) Kützing | Kieselschal. Bacill.: | 66 | 1844 |
| Synedra splendens | (Kützing) Kützing | Kieselschal. Bacill.: | 66 | 1844 |
| Synedra danica | Kützing | Bacillarien: | 66, pl. 14: fig. XIII | 1844 |
| Synedra biceps | Kützing | Bacillarien: | 66, pl. 14: figs. XVIII, XXI.1 | 1844 |
| Synedra lanceolata | Kützing | Bacillarien: | 66, pl. 30: fig. 31 | 1844 |
| Synedra oxyrhynchus | Kützing | Kieselschal. Bacill.: | 66: pl. 14: figs. VIII.2, IX-XI | 1844 |
| Synedra vermicularis | (Kützing) Kützing | Bacillarien: | 67 | 1844 |
| Synedra sigmoidea | (Nitzsch) Kützing | Kieselschal. Bacill.: | 67 | 1844 |
| Synedra parva | Kützing | Bacillarien: | 67, pl. 15: fig. IX (as Synedra parvula, corrected to parva in index, p. 152) | 1844 |
| Synedra fasciculata | (C. Agardh) Kützing | Kieselschal. Bacill.: | 68 | 1844 |
| Synedra acus | Kützing | Kieselschal. Bacill.: | 68, pl. 15: fig. VII | 1844 |
| Synedra barbatula | Kützing | Bacillarien: | 68, pl. 15: fig. X.4 | 1844 |
| Synedra familiaris | Kützing | Kieselschal. Bacill.: | 68, pl. 15: fig. XII | 1844 |
| Synedra saxonica | Kützing | Die kieselschaligen Bacillarien oder Diatomeen: | 68, pl. 15: fig. XIV | 1844 |
| Synedra affinis | Kützing | Bacillarien: | 68, pl. 15: figs. VI, XI; pl. 24: fig. I.5 | 1844 |
| Synedra gaillonii var. minor | Kützing | Bacillarien: | 68, pl. 30: fig. 41 | 1844 |
| Synedra arcus | Kützing | Bacillarien | 68, pl. 30: fig. 50 | 1844 |
| Synedra rumpens | Kützing | Bacillarien: | 69, pl. 16: fig. VI.4,5 | 1844 |
| Synedra aggregata | Brébisson in Rabenhorst | Alg. Sachs. Dec. | 69/70: no. 687 | 1858 (May) |
| Synedra oxyrhynchus var. medioconstricta | Forti | Atti R. Ist. Veneto Sci. Lett. ed Arti | 69{2}: 1299 | 1910 |
| Synedra rumpens var. familiaris | (Kützing) Gemeinhardt | Pflanzenforschung | 6: 18 | 1926 |
| Synedra pulchella var. oblonga | T. Marsson | Zeitschrift für angewandte Mikroskopie und klinische Chemie | 6: 227 | 1900 |
| Synedra tabulata var. affinis | (Kützing) T. Marsson | Zeitschrift für angewandte Mikroskopie und klinische Chemie | 6: 229 | 1900 |
| Synedra fulgens var. conspicua | Grunow ex Gemeinhardt | Pflanzenforschung | 6: 32 | 1926 |
| Synedra hennedyana var. insignis | (Grunow) Gemeinhardt | Pflanzenforschung | 6: 33 | 1926 |
| Synedra fulgens var. eximia | Grunow | Hedwigia | 6: 4, no fig. | 1867 |
| Synedra undosa | Grunow | Hedwigia | 6: 4, no fig. | 1867 |
| Synedra fasciculata var. parva | (Kützing) T.V. Desikachary & V.T. Sridharan in T.V. Desikachary | Atlas Diat. | 6: 9 | 1989 |
| Synedra affinis var. rostrata | Juhlin-Dannfelt | Bih. K. Svenska Vet.-Akad. Handl. | 6{21}: 43, pl. III: figs. 29, 31 | 1882 |
| Synedra koganii | V.I. Mikhailov | Bot. Zhurn. | 71: 1398, pls. I, II | 1986 |
| Eunotioforma synedriformis_('synedraeformis') | (Hustedt) J.P. Kociolek & A.L. Burliga in A.L. Burliga et al. | Phytotaxa | 72: 53 | 2013 |
| Synedra schroeteri_('Schröteri') | Meister | Kieselalg. Schweiz: | 76, 233, pl. IX: fig. 1 | 1912 |
| Synedra paludosa | Meister | Kieselalg. Schweiz: | 76, 233, pl. VII: fig. 8 | 1912 |
| Synedra nana | Meister | Kieselalg. Schweiz: | 76, 233, pl. VIII: fig. 9 | 1912 |
| Synedra mazamaensis | H.E. Sovereign | Trans. Amer. Microscop. Soc. | 77: 111, pl. II: figs. 10-15 | 1958 |
| Synedra gibbosa | Ralfs in Pritchard | Hist. Inf. ed. 4: | 786 | 1861 |
| Synedra mazamaensis | H.E. Sovereign ex Reimer in Patrick & Reimer | Trans. Amer. Microscop. Soc. | 79: 345 | 1960 |
| Synedra ulna f. undulata | Limanowska | Arch. Hydrobiol. | 7: 364, fig. 1 | 1912 |
| Synedra grandis | Mereschkowsky | Ann. & Mag. Nat. Hist., ser. 7, | 7: 513, no fig. | 1901 |
| Synedra curvata | Proshkina-Lavrenko | Bot. Mater., Spor. Rast., Bot. Inst. Akad. Nauk SSSR | 7: 74, figs. 20, 21 | 1951 |
| Synedra lata | (Giffen) A. Witkowski in A. Witkowski, H. Lange-Bertalot & D. Metzeltin | Icon. Diatomol. | 7: 81 | 2000 |
| Synedra utermoehlii_('utermöhlii') | Hustedt | Rabenhorst's Krypt.-Fl. Deutschl., 2.Aufl., | 7{2}: 185, fig. 687 | 1932 |
| Synedra ulna f. medioconstricta_('mediocontracta') | (Forti) Hustedt | Rabenhorst's Krypt.-Fl. Deutschl., 2.Aufl., | 7{2}: 199 | 1932 |
| Synedra montana | Krasske ex Hustedt | Rabenhorst's Krypt.-Fl. Deutschl., 2.Aufl., | 7{2}: 204, fig. 694 | 1932 |
| Synedra amphicephala var. austriaca | (Grunow) Hustedt | Rabenhorst's Krypt.-Fl. Deutschl., 2.Aufl., | 7{2}: 206 | 1932 |
| Synedra distinguenda | Hustedt | Rabenhorst's Krypt.-Fl. Deutschl., 2.Aufl., | 7{2}: 214, fig. 707 | 1932 |
| Synedra tabulata var. fasciculata | (C. Agardh) Grunow ex Hustedt | Rabenhorst's Krypt.-Fl. Deutschl., 2.Aufl., | 7{2}: 218 | 1932 |
| Synedra tabulata var. acuminata | (Grunow) Grunow ex Hustedt | Rabenhorst's Krypt.-Fl. Deutschl., 2.Aufl., | 7{2}: 219 | 1932 |
| Synedra tabulata var. obtusa | (Pantocsek) Hustedt | Rabenhorst's Krypt.-Fl. Deutschl., 2.Aufl., | 7{2}: 219 | 1932 |
| Synedra tabulata var. grandis | (Mereschkowsky) Hustedt | Rabenhorst's Krypt.-Fl. Deutschl., 2.Aufl., | 7{2}: 219 | 1932 |
| Synedra tabulata var. parva | (Kützing) Grunow ex Hustedt | Rabenhorst's Krypt.-Fl. Deutschl., 2.Aufl., | 7{2}: 219 | 1932 |
| Synedra toxoneides var. curvata | (Østrup) Hustedt | Rabenhorst's Krypt.-Fl. Deutschl., 2.Aufl., | 7{2}: 220 | 1931 |
| Synedra brockmannii_('brockmanni') | Hustedt | Rabenhorst's Krypt.-Fl. Deutschl., 2.Aufl., | 7{2}: 228, fig. 716 | 1932 |
| Synedra bacillaris | (Grunow) Hustedt | Rabenhorst's Krypt.-Fl. Deutschl., 2.Aufl., | 7{2}: 230 | 1932 |
| Synedra chandolensis var. capitata | H.P. Gandhi | Fresh-water Diatoms Central Gujarat: | 80, pl. IV: figs. 196-199 | 1998 |
| Synedra cuneata | H.P. Gandhi | Fresh-water Diatoms Central Gujarat: | 81, pl. IV: fig. 200 | 1998 |
| Synedra arcuata | Nägeli ex Kützing | Sp. Alg.: | 890 | 1849 |
| Psammosynedra closterioides | (Grunow) F.E. Round | Diatom Res. | 8: 211 | 1993 |
| PSAMMOSYNEDRA | F.E. Round | Diatom Res. | 8: 211 | 1993 |
| Synedra rostrata | F. Meister | Arch. Hydrobiol. | 8: 307, 312, pl. IV: fig. 7 | 1913 |
| Synedra japonica | F. Meister | Arch. Hydrobiol. | 8: 307, 312, pl. IV: figs. 5, 6 | 1913 |
| Synedra chandolensis | H.P. Gandhi | Nova Hedwigia | 8: 357, pl. 62(1): fig. 28 | 1964 |
| Synedra rumpens var. fusa | R.M. Patrick | Proc. Acad. Nat. Sci. Philadelphia | 92: 218, pl. 8: figs. 6-8 | 1940 |
| Synedra tabulata var. obtusa | (Arnott ex Grunow) R. Ross | Natl. Mus. Canada, Bull. | 97: 185 | 1947 |
| Synedra ostenfeldii | (Willi Krieger) A. Cleve ex Stålberg | Internationale Vereinigung für theoretische und angewandte Limnologie: Verhandlungen | 9: 194, 196, 197 | 1940 |
| PSEUDO-SYNEDRA | Leuduger-Fortmorel | Bacillariophyta | Ann. Jard. Bot. Buitenzorg | 11: 31 |
| Synedra wigandii | Rabenhorst | Fl. Eur. Alg. | I: 128 | 1864 |
| Synedra lunaris var. undulata | Rabenhorst | Fl. Eur. Alg. | I: 128 | 1864 |
| Synedra bicurvata | Biene in Rabenhorst | Fl. Eur. Alg. | I: 129 | 1864 |
| Synedra flexuosa var. angusta | Brébisson ex Rabenhorst | Fl. Eur. Alg. | I: 129 | 1864 |
| Synedra schumannii_(`schumanni') | Rabenhorst | Fl. Eur. Alg. | I: 129 | 1864 |
| Synedra alpina var. subarcuata | (Nägeli ex Kützing) Rabenhorst | Fl. Eur. Alg. | I: 129 | 1864 |
| Synedra pulchella var. fasciculata | (C. Agardh) Rabenhorst | Fl. Eur. Alg. | I: 131 | 1864 |
| Synedra splendens var. debilis | Rabenhorst | Fl. Eur. Alg. | I: 134 | 1864 |
| Synedra acuta var. oxyrhynchus | (Kützing) Rabenhorst | Fl. Eur. Alg. | I: 135 | 1864 |
| Synedra acus var. delicatissima | (W. Smith) Rabenhorst | Fl. Eur. Alg. | I: 136 | 1864 |
| Synedra fulgens f. gigantea | (Lobarzewsky) Rabenhorst | Fl. Eur. Alg. | I: 140 | 1864 |
| Synedra amphirhynchus var. undulata | Rabenhorst | Fl. Eur. Alg.: | I: 323 | 1862 |
| Synedra longissima | W. Smith | Syn. Brit. Diat. | I: 72, pl. XII: fig. 95 | 1853 |
| Synedra deformis | W. Smith | Syn. Brit. Diat. | II: 98 | 1856 |
| Synedra familiaris f. parva | Van Heurck | Syn. Diat. Belg.: | Pl. XL: fig. 15 | 1881 |
| Synedra gloiophila | Grunow in Van Heurck | Syn. Diat. Belg.: | Pl. XL: fig. 21 | 1881 |
| Synedra perminuta | Grunow in Van Heurck | Syn. Diat. Belg.: | Pl. XL: fig. 23 | 1881 |
| Synedra capitellata | Grunow in Van Heurck | Syn. Diat. Belg. | Pl. XL: fig. 26 | 1881 |
| Synedra capitellata var. cymbelloides | Grunow in Van Heurck | Syn. Diat. Belg.: | Pl. XL: figs. 24, 25 | 1881 |
| Synedra minuscula | Grunow in Van Heurck | Syn. Diat. Belg. Atlas: | Pl. XXXIX: fig. 13 | 1881 |
| Asterionella synedraeformis | R.K. Greville | image |
| Eunotia synedra - - | | image |
| Eunotia synedraeformis | F. Hustedt | image |
| Eunotia synedraeformis var. angusta | F. Hustedt | image |
| EUSYNEDRA | Frenguelli | image |
| EUSYNEDRA | Schütt | image |
| EUSYNEDRA | Van Heurck | image |
| Synedra nitzschii | Rabenhorst | Süssw.-Diat.: | expl. pl. IV: fig. 1 | 1853 |
| Fragilaria synedra | C.G. Ehrenberg | image |
| HYALOSYNEDRA | D. Williams & F.E. Round | image |
| Hyalosynedra laevigata | (Grunow) Williams & Round | image |
| Nematoplata synedra | (Ehrenberg) Kuntze | image |
| NEOSYNEDRA | D. Williams & Round | image |
| Neosynedra provincialis | (Grunow) D. Williams & Round | image |
| Neosynedra tortosa | (Grunow) D. Williams & Round | image |
| Synedra investiens var. hyperborea | Grunow in Cleve & Möller | Diatoms: | no. 314 | 1882 |
| Synedra radians | Kützing | Bacillarien: | p. 64, pl. 14: fig. VII: 1-4. | 1844 |
| Synedra pulchella var. lacerata | Hustedt | A. Schmidt's Atlas: | pl. 300: figs. 32, 33 | 1913 |
| Synedra closterioides | Grunow in Van Heurck | Syn. Diat. Belg.: | pl. LXX: figs. 10, 11 | 1881 |
| Synedra gaillonii var. elongata | H. Peragallo & M. Peragallo | Diatomées Marines de France: | pl. LXXX: fig. 7 (desc. on p. 315, 1901) | 1900 |
| Synedra rumpens var. scotica | Grunow in Van Heurck | Syn. Diat. Belg.: | pl. XL: fig. 11 | 1881 |
| Synedra rumpens var. meneghiniana | Grunow in Van Heurck | Syn. Diat. Belg.: | pl. XL: fig. 13 | 1881 |
| Synedra vaucheriae var. distans | Grunow in Van Heurck | Syn. Diat. Belg.: | pl. XL: fig. 17 | 1881 |
| Synedra vaucheriae var. deformis | Grunow in Van Heurck | Syn. Diat. Belg.: | pl. XL: fig. 18 | 1881 |
| Synedra affinis var. acuminata | Grunow in Van Heurck | Syn. Diat. Belgique: | pl. XLI: fig. 14 | 1881 |
| Synedra affinis var. obtusa | Arnott ex Grunow in Van Heurck, | Syn. Diat. Belg.: | pl. XVI: fig. 12 | 1881 |
| Synedra delicatissima var. angustissima | Grunow in Van Heurck | Syn. Diat. Belgique: | pl. XXXIX: fig. 10 | 1881 |
| Synedra austriaca | Grunow in Van Heurck | Syn. Diat. Belgique: | pl. XXXIX: fig. 16 A,B | 1881 |
| Synedra fallax | Grunow in Van Heurck | Syn. Diat. Belg.: | pl. XXXIX: fig. 16C | 1881 |
| Synedra subaequalis | Grunow in Van Heurck, | Syn. Diat. Belgique: | pl. XXXVIII: fig. 13 | 1881 |
| Synedra spathulifera | Grunow in Van Heurck | Syn. Diat. Belgique: | pl. XXXVIII: fig. 4 | 1881 |
| Pseudo-synedra debyi | Leuduger-Fortmorel | image |
| Pseudo-synedra peragalloi_('peragalli') | Leuduger-Fortmorel | image |
| Pseudosynedra sceptroides | J. Brun | image |
| Synedra doliolus | Wallich | Trans. Microscop. Soc. London, | ser. 2, 8: 48, pl. II: fig. 19 | 1860 |
| SYNEDRA | C.G. Ehrenberg | image |
| SYNEDRA | Gruppe AFFINES A. Grunow | image |
| SYNEDRA | Gruppe PSEUDO-EUNOTIA A. Grunow | image |
| SYNEDRA sect. | EUSYNEDRA F. Schütt, H.G.A. Engler & K.A.E. Prantl | image |
| SYNEDRA subgenera | CTENOPHORA J. Frenguelli | image |
| SYNEDRA subgenera | EUSYNEDRA H.F. Van Heurck | image |
| SYNEDRA subgenus | RIMARIA F.T. Kützing | image |
| Synedra [affinis var.] dubia | A. Grunow | image |
| Synedra [affinis var.] intermedia | A. Grunow | image |
| Synedra [crystallina var.] decipiens | P.T. Celve & A. Grunow | image |
| Synedra [ulna var.] spathulifera | A. Grunow | image |
| Synedra [ulna var.] subaequalis | A. Grunow | image |
| Synedra acicularis | F.T. Kützing | image |
| Synedra acicularis | W. Smith | image |
| Synedra actinastroides | (E.J. Lemmermann) E.J. Lemmermann | image |
| Synedra actinastroides var. curvata | E.J. Lemmermann | image |
| Synedra actinastroides var. lata | E.J. Lemmermann | image |
| Synedra actinastroides var. opoliensis | E.J. Lemmermann | image |
| Synedra acula | F.T. Kützing | image |
| Synedra acula var. tenuissima | (F.T. Kützing) E. O'Meara | image |
| Synedra acus f. angustissima | (A. Grunow) Willi Krieger | image |
| Synedra acus f. anomala | M. Peragallo | image |
| Synedra acus f. delicatissima | (W. Smith) Willi Krieger | image |
| Synedra acus f. mesoleia | (A. Grunow) A. Cleve-Euler | image |
| Synedra acus f. mesoleia | (A. Grunow) O. Müller | image |
| Synedra acus | F.T. Kützing 1844 | image |
| Synedra acus var. acula | (F.T. Kützing) A. Cleve-Euler | image |
| Synedra acus var. angustissima | (A. Grunow) H.F. Van Heurck | image |
| Synedra acus var. apiculata | (G.L. Rabenhorst) G.L. Rabenhorst | image |
| Synedra acus var. aprilina - - | | image |
| Synedra acus var. delicatissima | (W. Smith) G.L. Rabenhorst | image |
| Synedra acus var. elongata | A. Grunow | image |
| Synedra acus var. fossilis | A. Grunow | image |
| Synedra acus var. genuina | Ant. Mayer | image |
| Synedra acus var. gracillima | (G.L. Rabenhorst) G.L. Rabenhorst | image |
| Synedra acus var. mesolepta | E.V. Østrup | image |
| Synedra acus var. radians | (F.T. Kützing) F. Hustedt | image |
| Synedra acus var. tenuis | (F.T. Kützing) J. Schumann | image |
| Synedra acus var. tenuissima | (Kützing) G.L. Rabenhorst | image |
| Synedra acus var. ventricosa | J.-J. Brun & J. Heribaud | image |
| Synedra acuta | C.G. Ehrenberg | image |
| Synedra acuta var. amphicephala | (A. Grunow) G.L. Rabenhorst | image |
| Synedra acuta var. oxyrhynchus | (F.T. Kützing) G.L. Rabenhorst | image |
| Synedra acuta var. undulata | (A. Grunow) G.L. Rabenhorst | image |
| Synedra adeliae | E.E. Manguin | image |
| Synedra aequalis | (F.T. Kützing) F.T. Kützing | image |
| Synedra affinis f. anomala | E.V. Østrup | image |
| Synedra affinis f. constricta | B. Liebetanz | image |
| Synedra affinis f. curta - - | | image |
| Synedra affinis f. elongata | H.F. Van Heurck | image |
| Synedra affinis f. gracilior | H.F. Van Heurck | image |
| Synedra affinis f. minor | J. Frenguelli | image |
| Synedra affinis f. minor | J. Frenguelli | image |
| Synedra affinis f. nuda | J. Pantocsek | image |
| Synedra affinis f. opephoroides | J. Frenguelli | image |
| Synedra affinis f. parva | H.F. Van Heurck | image |
| Synedra affinis | F.T. Kützing | image |
| Synedra affinis var. acuminata | A. Grunow | image |
| Synedra affinis var. angustata - - | | image |
| Synedra affinis var. baileyana | H.H. Chase | image |
| Synedra affinis var. biharensis | J. Pantocsek | image |
| Synedra affinis var. curta | A. Grunow | image |
| Synedra affinis var. delicatula | A. Grunow | image |
| Synedra affinis var. fasciculata | (C.A. Agardh) H.F. Van Heurck | image |
| Synedra affinis var. genuina | H.F. Van Heurck | image |
| Synedra affinis var. grandis | K.S. Mereschkowsky | image |
| Synedra affinis var. hybrida | A. Grunow | image |
| Synedra affinis var. lanceolata | E.V. Østrup | image |
| Synedra affinis var. lancettula | A. Grunow | image |
| Synedra affinis var. lepida | A. Grunow | image |
| Synedra affinis var. nuda | J. Pantocsek | image |
| Synedra affinis var. obtusa | F. Hustedt | image |
| Synedra affinis var. parva | (F.T. Kützing) H.F. Van Heurck | image |
| Synedra affinis var. platensis | J. Frenguelli | image |
| Synedra affinis var. rostrata | H.J.B. Juhlin-Dannfelt | image |
| Synedra affinis var. rupicola | A. Grunow | image |
| Synedra affinis var. subtilis | (F.T. Kützing) A. Grunow | image |
| Synedra affinis var. tabulata | (F.T. Kützing) H.F. Van Heurck | image |
| Synedra affinis var. tenuis | (F.T. Kützing) A. Grunow | image |
| Synedra affinis var. tenuissima | A. Grunow | image |
| Synedra affinis var. thermalis | M. Peragallo | image |
| Synedra affinis var. travertinorum | E.V. Østrup | image |
| Synedra affinis var. tristani | A. Cleve-Euler | image |
| Synedra alaskana | R.M. Patrick & L.R. Freese | image |
| Synedra allansonii | B.J. Cholnoky | image |
| Synedra allorgei | E.E. Manguin | image |
| Synedra alpina | C.W. Nägeli ex F.T. Kützing | image |
| Synedra alpina var. subarcuata | (C.W. Nägeli) G.L. Rabenhorst | image |
| Synedra amphicephala f. mesoleia | A. Cleve-Euler | image |
| Synedra amphicephala f. mesolepta | A. Cleve-Euler | image |
| Synedra amphicephala | F.T. Kützing | image |
| Synedra amphicephala var. balatonis | J. Pantocsek | image |
| Synedra amphicephala var. densestriata | C.W. Fontell | image |
| Synedra amphicephala var. imperfecta | A. Cleve-Euler | image |
| Synedra amphicephala var. intermedia | E.E. Manguin | image |
| Synedra amphicephala var. minor | A. Grunow | image |
| Synedra amphicephala var. pusilla | A. Cleve | image |
| Synedra amphicephala var. sigmoidea | J. Schaarschmidt | image |
| Synedra amphicephala var. striis-tenuioribus | A. Grunow | image |
| Synedra amphicephala var. tenuicapitata | E.E. Manguin | image |
| Synedra amphicoryna | C.G. Ehrenberg | image |
| Synedra amphilepta | C.G. Ehrenberg | image |
| Synedra amphioxys | C.G. Ehrenberg | image |
| Synedra amphirhynchus | C.G. Ehrenberg | image |
| Synedra amphirhynchus var. fragilariaeformis | F.E. Fritsch & M.F. Rich | image |
| Synedra amphirhynchus var. undulata | G.L. Rabenhorst | image |
| Synedra anguinea | C.S. Boyer | image |
| Synedra angusta | E.V. Østrup | image |
| Synedra angustata | F.T. Kützing | image |
| Synedra antarctica | H. Heiden | image |
| Synedra antarctica | M. Peragallo | image |
| Synedra apiculata | G.L. Rabenhorst | image |
| Synedra arctica | A. Grunow | image |
| Synedra arctica | E. O'Meara | image |
| Synedra arcuata | A. Wigand | image |
| Synedra arcuata | C.W. Nägeli ex F.T. Kützing | image |
| Synedra arcus f. minor | A. Piccone | image |
| Synedra arcus | F.T. Kützing | image |
| Synedra arcus | Kützing | image |
| Synedra arcus var. delicatissima | A. Grunow | image |
| Synedra arcus var. genuina | A. Grunow | image |
| Synedra arcus var. minor | A. Grunow | image |
| Synedra armoricana | F.T. Kützing | image |
| Synedra articulata | P.L. Crouan & H.M. Crouan | image |
| Synedra asterionelloides | O. Müller | image |
| Synedra atlantica | Castracane | image |
| Synedra atomus | (Kützing) Nägeli ex Kützing | image |
| Synedra auriculata | G.H.H. Karsten | image |
| Synedra australis | C.G. Ehrenberg | image |
| Synedra australis | C.G. Ehrenberg | image |
| Synedra austriaca | A. Grunow | image |
| Synedra baculus var. minor | A. Grunow | image |
| Synedra baculus | W. Gregory | image |
| Synedra balatonis f. staurophora | J. Pantocsek | image |
| Synedra balatonis | J. Pantocsek | image |
| Synedra balthica | C.G. Ehrenberg | image |
| Synedra barbatula | F.T. Kützing | image |
| Synedra barrowiana | R.M. Patrick & L.R. Freese | image |
| Synedra berolinensis | E.J. Lemmermann | image |
| Synedra berolinensis var. gracilis | E.J. Lemmermann | image |
| Synedra biasolettiana | F.T. Kützing | image |
| Synedra biceps | F.T. Kützing | image |
| Synedra biceps var. arcus | F.T. Kützing | image |
| Synedra biceps var. distenta | F.E. Fritsch & M.F. Rich | image |
| Synedra biceps var. recta | F.T. Kützing | image |
| Synedra biceps | W. Smith | image |
| Synedra biharensis | J. Pantocsek | image |
| Synedra bilunaris | C.G. Ehrenberg | image |
| Synedra bilunaris var. elongata | C.M. Sande Lacoste & W.F.R. Suringar | image |
| Synedra binodis | (C.G. Ehrenberg) T.-P. Chang & C. Steinberg | image |
| Synedra brebissonii_('brebissonii') | (F.T. Kützing) G.L. Rabenhorst | image |
| Synedra bremiana | J. Pantocsek | image |
| Synedra brevis | C.G. Ehrenberg | image |
| Synedra brevis var. gracilior | C.G. Ehrenberg | image |
| Synedra brevis var. turgida | C.G. Ehrenberg | image |
| Synedra campyla | F.W. Hilse | image |
| Synedra campyla | F.W. Hilse | image |
| Synedra camtschatica | A. Grunow | image |
| Synedra capensis | A. Grunow | image |
| Synedra capillaris | A. Grunow | image |
| Synedra capitata | C.G. Ehrenberg | image |
| Synedra capitata var. curta | F. Meister | image |
| Synedra capitata var. genuina | F. Meister | image |
| Synedra capitata var. longiceps | (C.G. Ehrenberg) E. O'Meara | image |
| Synedra capitata var. typica | R. Gutwinski | image |
| Synedra capitellata | A. Grunow | image |
| Synedra capitellata var. cymbelloides | A. Grunow | image |
| Synedra caroli-principis | J. Schaarschmidt | image |
| Synedra charcotii | M. Peragallo | image |
| Synedra clava | O.N. Witt | image |
| Synedra clavata | R.K. Greville | image |
| Synedra closterioides | A. Grunow | image |
| Synedra closterioides var. fossilis | M. Peragallo & J. Heribaud | image |
| Synedra closterioides var. jaernefeltii | K. Mölder | image |
| Synedra commutata | A. Grunow | image |
| Synedra commutata var. producta | H.F. Van Heurck | image |
| Synedra commutata var. septentrionalis | A. Grunow | image |
| Synedra constricta | C.G. Ehrenberg | image |
| Synedra constricta | F.T. Kützing | image |
| Synedra cornigera | A. Grunow | image |
| Synedra crotonensis | (F. Kitton) A. Grunow | image |
| Synedra crotonensis f. belgica | A. Grunow | image |
| Synedra crotonensis var. constricta | C.H. Kain | image |
| Synedra crotonensis var. prolongata | A. Grunow | image |
| Synedra crystallina | (C. Agardh) Kützing | image |
| Synedra crystallina f. gibba | J. Pantocsek | image |
| Synedra crystallina var. bacillaris | A. Grunow | image |
| Synedra crystallina var. decipiens | P.T. Cleve & A. Grunow | image |
| Synedra crystallina var. fossilis | J. Pantocsek | image |
| Synedra crystallina var. insignis | A. Grunow | image |
| Synedra crystallina var. longissima | A. Grunow | image |
| Synedra crystallina var. maeotica | J. Pantocsek | image |
| Synedra crystallina var. smithii | A. Grunow | image |
| Synedra cuneata | (H.C. Lyngbye) C.G. Ehrenberg | image |
| Synedra cuneata | A. Grunow | image |
| Synedra cunningtonii | G.S. West | image |
| Synedra curvata | A.I. Proshkina-Lavrenko | image |
| Synedra curvata | C.G. Ehrenberg | image |
| Synedra curvata | E.V. Østrup | image |
| Synedra curvata | F.T. Kützing | image |
| Synedra curvula | F.T. Kützing | image |
| Synedra curvula var. punctata | F.T. Kützing | image |
| Synedra cyclopum | A. Brutschy | image |
| Synedra cyclopum var. nipponica | B.V. Skvortzov | image |
| Synedra cymbelliformis | A. Schmidt | image |
| Synedra dalmatica | F.T. Kützing | image |
| Synedra danica | F.T. Kützing | image |
| Synedra debilis | F.T. Kützing | image |
| Synedra decloitrei | A. Amosse | image |
| Synedra deformis f. perminuta | G.A.W. Arnott | image |
| Synedra delicatissima f. brevis | H.F. Van Heurck | image |
| Synedra delicatissima var. amphicephala | H.F. Van Heurck | image |
| Synedra delicatissima var. angustissima | A. Grunow | image |
| Synedra delicatissima var. mesoleia | A. Grunow | image |
| Synedra demerarae | A. Grunow | image |
| Synedra dissipata | F.T. Kützing | image |
| Synedra dissipata var. fasciculata | F.T. Kützing | image |
| Synedra dissipata var. sparsa | F.T. Kützing | image |
| Synedra distinguenda var. curta | M.H. Giffen | image |
| Synedra doliolus | G.C. Wallich | image |
| Synedra dorsiventralis f. biconstricta | E.E. Manguin | image |
| Synedra dorsiventralis f. symetrica | E.E. Manguin | image |
| Synedra dorsiventralis | O. Müller | image |
| Synedra dorsiventralis var. cymbelliformis | O. Müller | image |
| Synedra dorsiventralis var. sinuata | O. Müller | image |
| Synedra dorsiventralis var. subundulata | O. Müller | image |
| Synedra dorsiventralis var. undulata | O. Müller | image |
| Synedra dubia | W. Carruthers | image |
| Synedra dubravicensis | J. Pantocsek | image |
| Synedra duhemi | G.D. Hanna & W.M. Grant | image |
| Synedra ehrenbergii | F.T. Kützing | image |
| Synedra elegans | C.G. Ehrenberg | image |
| Synedra entomon | C.G. Ehrenberg | image |
| Synedra exilis | F.T. Kützing | image |
| Synedra falcata | F.T. Kützing & L.A. Brebisson ex F.T. Kützing | image |
| Synedra fallax | A. Grunow | image |
| Synedra famelica | F.T. Kützing | image |
| Synedra famelica var. capitata | C.W. Nägeli ex F.T. Kützing | image |
| Synedra famelica var. enflata | V. Zanon | image |
| Synedra familiaris f. major | A. Grunow | image |
| Synedra familiaris f. parva | H.F. Van Heurck | image |
| Synedra familiaris | F.T. Kützing | image |
| Synedra familiaris var. neogena | A. Grunow | image |
| Synedra fasciculata | (C.A. Agardh) Kützing | image |
| Synedra fasciculata | C.G. Ehrenberg | image |
| Synedra fasciculata f. undulata | A. Grunow | image |
| Synedra fasciculata var. obtusa | J. Pantocsek | image |
| Synedra fasciculata var. subarcuata | A. Grunow | image |
| Synedra fasciculata var. truncata | (R.K. Greville) R.M. Patrick | image |
| Synedra fasciolaris | K.E. Eichwald | image |
| Synedra fastuosa var. japonica | B.V. Skvortzov | image |
| Synedra fibula | J.-J. Brun | image |
| Synedra fibula | W. Smith | image |
| Synedra filiformis | A. Grunow | image |
| Synedra filiformis | J.R. Carter & P. Denny | image |
| Synedra filiformis var. exilis | A. Cleve-Euler | image |
| Synedra filiformis var. major | A. Cleve-Euler | image |
| Synedra fimbriata | Castracane | image |
| Synedra fisherensis | T.A. Bond | image |
| Synedra flexuosa | C.G. Ehrenberg | image |
| Synedra flexuosa | L.A. Brebisson | image |
| Synedra flexuosa var. angusta | L.A. Brebisson | image |
| Synedra flexuosa var. angusta | L.A. Brebisson ex G.L. Rabenhorst | image |
| Synedra flexuosa var. biceps | (C.G. Ehrenberg) A. Grunow | image |
| Synedra fluviatilis | E.J. Lemmermann | image |
| Synedra fluviatilis var. czerlanensis | J. Woloszynska | image |
| Synedra formosa | C.A. Hantzsch | image |
| Synedra formosa var. amphipachya | A. Grunow | image |
| Synedra forta | L.A. Brebisson ex W. Smith | image |
| Synedra fragilarioides | P.E. Hargraves & R.R.L. Guillard | image |
| Synedra fragilis | E.E. Manguin | image |
| Synedra frauenfeldii | A. Grunow | image |
| Synedra frauenfeldii var. doljensis | J. Pantocsek | image |
| Synedra frustulum | F.T. Kützing | image |
| Synedra fuchsi | (J. Pantocsek) H.-J. Schrader | image |
| Synedra fulgens | (R.K. Greville) W. Smith | image |
| Synedra fulgens f. gigantea | (Lobarzewski) Rabenhorst | image |
| Synedra fulgens f. minor | G.L. Rabenhorst | image |
| Synedra fulgens var. dalmatica | A. Grunow | image |
| Synedra fulgens var. eximia | A. Grunow | image |
| Synedra fulgens var. maeotica | J. Pantocsek | image |
| Synedra fulgens var. mediterranea | A. Grunow | image |
| Synedra fusidioides | G.L. Rabenhorst | image |
| Synedra fusidium | F.T. Kützing | image |
| Synedra gaillonii f. constricta | S.P. Petkoff | image |
| Synedra gaillonii f. longior | S.P. Petkoff | image |
| Synedra gaillonii f. minor | M. Peragallo | image |
| Synedra gaillonii var. crystallina | (C.A. Agardh) G.L. Rabenhorst | image |
| Synedra gaillonii var. longipes | C.S. Singh | image |
| Synedra gaillonii var. macilenta | A. Grunow | image |
| Synedra gaillonii var. major | B. Komarovsky & T. Edelstein | image |
| Synedra gaillonii var. minor | F.T. Kützing | image |
| Synedra gaillonii var. minor | W. Carruthers | image |
| Synedra gaussii | H. Heiden | image |
| Synedra gaussii var. trigibba | H. Heiden | image |
| Synedra gelida | (M. Peragallo) A. Mann | image |
| Synedra gelida | J. Frenguelli | image |
| Synedra gibba | C.G. Ehrenberg | image |
| Synedra gibbosa | J. Ralfs | image |
| Synedra gigantea | C.G. Ehrenberg | image |
| Synedra gigantea | H.S. Lobarzewski | image |
| Synedra gloiophila | A. Grunow | image |
| Synedra gomphonema | C. Janisch & G.L. Rabenhorst | image |
| Synedra goulardii var. acus | J. Frenguelli | image |
| Synedra goulardii var. fluviatilis | (E.J. Lemmermann) J. Frenguelli | image |
| Synedra goulardii var. jeniseyensis | B.V. Skvortzov | image |
| Synedra goulardii var. mongolica | (B.V. Skvortzov) B.V. Skvortzov | image |
| Synedra goulardii_('goulardi') | L.A. Brebisson | image |
| Synedra gracilis | F.T. Kützing | image |
| Synedra gracilis var. barbatula | A. Grunow | image |
| Synedra gracilis var. italica | G.L. Rabenhorst | image |
| Synedra gracilis var. septentrionalis | A. Grunow | image |
| Synedra gracillima | G.L. Rabenhorst | image |
| Synedra gracillima | G.L. Rabenhorst | image |
| Synedra grandis | K.S. Mereschkowsky | image |
| Synedra grandis | K.S. Mereschkowsky | image |
| Synedra grandis var. rostrata | K.S. Mereschkowsky | image |
| Synedra grovei | A. Grunow | image |
| Synedra hamata | W. Smith | image |
| Synedra hantzschiana | A. Sournia | image |
| Synedra hartii | B.J. Cholnoky | image |
| Synedra hastata | G.L. Rabenhorst | image |
| Synedra helvetica | A. Brutschy | image |
| Synedra hemicyclus | C.G. Ehrenberg | image |
| Synedra hemicyclus | C.G. Ehrenberg | image |
| Synedra hennedyana f. longissima | A. Grunow | image |
| Synedra hennedyana var. capillaris | F. Meister | image |
| Synedra hennedyana var. undulata | (Bailey) Schwarz | image |
| Synedra hennedyana | W. Gregory | image |
| Synedra holsatiae | V. Hensen | image |
| Synedra homostriata | M.H. Hohn | image |
| Synedra hyalina | S. Prowazek | image |
| Synedra hyperborea | A. Grunow | image |
| Synedra hyperborea var. brevis | A. Grunow | image |
| Synedra hyperborea var. flexuosa | A. Grunow | image |
| Synedra hyperborea var. parvula | A.A. Aleem | image |
| Synedra hyperborea var. rostellata | A. Grunow | image |
| Synedra imperfecta | A. Cleve-Euler | image |
| Synedra incerta | K.S. Mereschkowsky | image |
| Synedra incisa | C.S. Boyer | image |
| Synedra incisa | G.L. Rabenhorst | image |
| Synedra incurva | C.G. Ehrenberg | image |
| Synedra inflexa | K.E. Eichwald | image |
| Synedra interrupta | B. Auerswald | image |
| Synedra investiens f. rhomboidea | F. Hustedt | image |
| Synedra investiens var. capensis | A. Grunow | image |
| Synedra investiens var. fragilarioides | A. Grunow | image |
| Synedra investiens var. genuina | A. Grunow | image |
| Synedra investiens var. gomphonemacea | A. Grunow | image |
| Synedra investiens var. hyperborea | A. Grunow | image |
| Synedra investiens | W. Smith | image |
| Synedra isabelae | R.M. Patrick | image |
| Synedra isabelae var. minor | R.M. Patrick | image |
| Synedra italica | G.L. Rabenhorst | image |
| Synedra japonica | B.V. Skvortzov | image |
| Synedra jogensis | H.P. Gandhi | image |
| Synedra joursacensis | Heribaud | image |
| Synedra jouseana f. linearis | V.S. Sheshukova-Poretskaya | image |
| Synedra juliana | G. De Notaris | image |
| Synedra juranyi_('jurányi') | J. Pantocsek | image |
| Synedra kamtschatica | A. Grunow | image |
| Synedra kamtschatica var. connectens | A. Grunow | image |
| Synedra kamtschatica var. finnmarchica | P.T. Cleve & A. Grunow | image |
| Synedra kamtschatica var. intermedia | A. Grunow | image |
| Synedra kamtschatica var. kjellmani | P.T. Cleve & A. Grunow | image |
| Synedra kamtschatica var. minor | A. Grunow | image |
| Synedra karcheri | T. Nemoto | image |
| Synedra kashyapiens | J.N. Misra | image |
| Synedra kerguelensis | H. Heiden | image |
| Synedra kinkeri_('kinkerii') | (J. Pantocsek) A. Jurilj | image |
| Synedra koreana | B.V. Skvortzov | image |
| Synedra laevigata | A. Grunow | image |
| Synedra laevigata var. angustata | A. Grunow | image |
| Synedra laevigata var. hyalina | A. Grunow | image |
| Synedra laevigata var. obtusiuscula | A. Grunow | image |
| Synedra laevigata var. thauensis | M. Peragallo | image |
| Synedra laevis | C.G. Ehrenberg | image |
| Synedra laevissima var. fossilis | A. Grunow | image |
| Synedra lanceolata | Castracane | image |
| Synedra lanceolata f. brevis | H.F. Van Heurck | image |
| Synedra lanceolata f. longior | H.F. Van Heurck | image |
| Synedra lanceolata | F.T. Kützing | image |
| Synedra lanceolata var. thaitiensis | Castracane | image |
| Synedra lancettula | (A. Grunow) A. Cleve-Euler | image |
| Synedra lemmermannii_('lemmermanni') | West & G.S. West | image |
| Synedra lenzi | G. Krasske | image |
| Synedra libyca | F.T. Kützing | image |
| Synedra limnetica | E.J. Lemmermann | image |
| Synedra linea | C.G. Ehrenberg | image |
| Synedra linearis | C.G. Ehrenberg | image |
| Synedra lineata | C.G. Ehrenberg | image |
| Synedra lismorensis | G.I. Playfair | image |
| Synedra longiceps | C.G. Ehrenberg | image |
| Synedra longissima var. acicularis | F. Meister | image |
| Synedra longissima var. vulgaris | F. Meister | image |
| Synedra lunaris | C.G. Ehrenberg | image |
| Synedra lunaris var. bilunaris | (C.G. Ehrenberg) J.-J. Brun | image |
| Synedra lunaris var. campyla | (F.W. Hilse) O. Kirchner | image |
| Synedra lunaris var. capitata | A. Grunow | image |
| Synedra lunaris var. genuina | A. Grunow | image |
| Synedra lunaris var. genuina | A. Grunow | image |
| Synedra lunaris var. undulata | G.L. Rabenhorst | image |
| Synedra lunula | C.G. Ehrenberg | image |
| Synedra macroptera | C.G. Ehrenberg | image |
| Synedra maeotica | J. Pantocsek | image |
| Synedra maeotica var. minor | J. Pantocsek | image |
| Synedra magna | A.M. Edwards | image |
| Synedra martensiana | F.T. Kützing | image |
| Synedra mauritiana | A. Grunow | image |
| Synedra mazamaensis | H.E. Sovereign | image |
| Synedra mesocampa | L.A. Brebisson ex F.T. Kützing | image |
| Synedra mesolepta | F.T. Kützing | image |
| Synedra microcrepis | G. Nygaard | image |
| Synedra minuscula | A. Grunow | image |
| Synedra minuscula var. capitata | B.V. Skvortzov | image |
| Synedra minuscula var. latestriata | E.V. Østrup | image |
| Synedra minuscula var. undulata | M. Peragallo | image |
| Synedra minuta | K.S. Mereschkowsky | image |
| Synedra minutissima | F.T. Kützing | image |
| Synedra minutissima var. pelliculosa | F.T. Kützing | image |
| Synedra miocenica | H.-J. Schrader | image |
| Synedra montana | G. Krasske | image |
| Synedra mucicola | F.T. Kützing | image |
| Synedra multifasciata | F.T. Kützing | image |
| Synedra multifasicata | (F.T. Kützing) F.T. Kützing | image |
| Synedra mystica | R.E.M. Archibald | image |
| Synedra nana f. capitata | E.E. Manguin | image |
| Synedra nana var. nipponica | B.V. Skvortzov | image |
| Synedra neapolitana | (G.L. Rabenhorst) G.L. Rabenhorst | image |
| Synedra netronoides | M.H. Hohn & J. Hellerman | image |
| Synedra nipponica | B.V. Skvortzov | image |
| Synedra nitzschii | (F.T. Kützing) G.L. Rabenhorst | image |
| Synedra nitzschioides var. acuminata | A. Grunow | image |
| Synedra nitzschioides var. minor | P.T. Cleve | image |
| Synedra nitzschioides var. minuta | A. Grunow | image |
| Synedra nitzschioides_('nitschioides') | A. Grunow | image |
| Synedra normaniana | R.K. Greville | image |
| Synedra notarisii | Castracane | image |
| Synedra notata | F.T. Kützing | image |
| Synedra oamaruensis | H.-J. Schrader | image |
| Synedra obtusa | W. Smith | image |
| Synedra ossiformis | F.J.R. Taylor | image |
| Synedra oxyrhynchus | F.T. Kützing | image |
| Synedra oxyrhynchus var. acus | (F.T. Kützing) O. Kirchner | image |
| Synedra oxyrhynchus var. amphicephala | A. Grunow | image |
| Synedra oxyrhynchus var. contracta | (J. Schumann) F. Hustedt | image |
| Synedra oxyrhynchus var. elongata | (A. Grunow) O. Kirchner | image |
| Synedra oxyrhynchus var. genuina | A. Grunow | image |
| Synedra oxyrhynchus var. medioconstricta | A.I. Forti | image |
| Synedra oxyrhynchus var. undulata | A. Grunow | image |
| Synedra pachycephala | L.A. Brebisson & F.T. Kützing | image |
| Synedra pacifica | A.M. Edwards | image |
| Synedra palea | F.T. Kützing | image |
| Synedra paleacea | C.G. Ehrenberg | image |
| Synedra paleacea | C.G. Ehrenberg | image |
| Synedra paludosa | F. Meister | image |
| Synedra parasitica | (W. Smith) F. Hustedt 1930 | image |
| Synedra parasitica f. lata | A. Cleve-Euler | image |
| Synedra parva | F.T. Kützing | image |
| Synedra parva var. bremiana | J. Pantocsek | image |
| Synedra parva var. brevistriata | A. Cleve-Euler | image |
| Synedra parva var. chilensis | A. Grunow | image |
| Synedra parva var. major | A. Grunow | image |
| Synedra parva var. sandvicensis | A. Grunow | image |
| Synedra parvula | (F.T. Kützing) F.T. Kützing | image |
| Synedra parvula | F.T. Kützing | image |
| Synedra pelagica | A. Cleve-Euler | image |
| Synedra pelagica | N.I. Hendey | image |
| Synedra perminuta | A. Grunow | image |
| Synedra perpusilla | F.T. Kützing | image |
| Synedra philippinarum | Castracane | image |
| Synedra philippinarum var. gallica | K.S. Mereschkowsky | image |
| Synedra platensis var. obtusa | J. Frenguelli | image |
| Synedra pliocenica | J. Heribaud & M. Peragallo | image |
| Synedra polymorpha | (J. Pantocsek & A. Grunow) H.-J. Schrader | image |
| Synedra porrecta | G.L. Rabenhorst | image |
| Synedra praemorsa | C.G. Ehrenberg | image |
| Synedra provincialis | A. Grunow | image |
| Synedra provincialis var. tortuosa | A. Grunow | image |
| Synedra pseudogoulardii | E.E. Manguin | image |
| Synedra puellaris | E. Messikommer | image |
| Synedra pulchella f. constricta | B. Liebetanz | image |
| Synedra pulchella f. constricta | F. Hustedt | image |
| Synedra pulchella f. major | A. Grunow | image |
| Synedra pulchella f. major | H.F. Van Heurck | image |
| Synedra pulchella f. obtusa | E.V. Østrup | image |
| Synedra pulchella f. subconstricta | P. Schulz-Danzig | image |
| Synedra pulchella | F.T. Kützing | image |
| Synedra pulchella var. acicularis | (W. Smith) E. O'Meara | image |
| Synedra pulchella var. capitata | J. Pantocsek | image |
| Synedra pulchella var. fasciculata | (C.A. Agardh) G.L. Rabenhorst | image |
| Synedra pulchella var. flexella | C.S. Boyer | image |
| Synedra pulchella var. genuina | F.T. Kützing | image |
| Synedra pulchella var. gracilis | E. O'Meara | image |
| Synedra pulchella var. grunowii | J. Frenguelli | image |
| Synedra pulchella var. kitaibelii | G. Istvanfy de Csík de Madefalva | image |
| Synedra pulchella var. lacerata | F. Hustedt | image |
| Synedra pulchella var. lanceolata | E. O'Meara | image |
| Synedra pulchella var. linearis | E. O'Meara | image |
| Synedra pulchella var. macrocephala | A. Grunow | image |
| Synedra pulchella var. minuta | F. Hustedt | image |
| Synedra pulchella var. minutissima | (F.T. Kützing) G.S. West | image |
| Synedra pulchella var. minutissima | A. Grunow | image |
| Synedra pulchella var. naviculacea | A. Grunow | image |
| Synedra pulchella var. saxonica | (F.T. Kützing) A. Grunow | image |
| Synedra pulchella var. smithii | (J. Ralfs) H.F. Van Heurck | image |
| Synedra pulchella var. socialis | (G.L. Rabenhorst) G.L. Rabenhorst | image |
| Synedra pulchella var. subcapitata | J. Pantocsek | image |
| Synedra pulchella var. tenuistriata | A. Grunow | image |
| Synedra pulcherrima | C.A. Hantzsch | image |
| Synedra punctata | E.V. Østrup | image |
| Synedra pusilla | F.T. Kützing | image |
| Synedra putealis | E. O'Meara | image |
| Synedra putrida | F.J. Cohn | image |
| Synedra quadrangula | F.T. Kützing | image |
| Synedra radians | F.T. Kützing | image |
| Synedra radians var. debilis | (F.T. Kützing) G.L. Rabenhorst | image |
| Synedra radians var. tenuissima | Rabenhorst | image |
| Synedra ramesii_('ramesi') | J. Heribaud | image |
| Synedra recava | M.H. Hohn | image |
| Synedra reinboldii | H.F. Van Heurck | image |
| Synedra rennellensis | N. Foged | image |
| Synedra revaliensis | E.J. Lemmermann | image |
| Synedra revaliensis | E.J. Lemmermann | image |
| Synedra ridica | M.H. Hohn & J. Hellerman | image |
| Synedra robusta f. mediocris | G.L. Rabenhorst | image |
| Synedra robusta f. vittata | G.L. Rabenhorst | image |
| Synedra robusta | J. Ralfs | image |
| Synedra robusta var. sinica | B.V. Skvortzov | image |
| Synedra romana | (G.L. Rabenhorst) G.L. Rabenhorst | image |
| Synedra rosenkrantzii | N. Foged | image |
| Synedra rostrata | (C.A. Hantzsch) G.L. Rabenhorst | image |
| Synedra rostrata | C.G. Ehrenberg | image |
| Synedra rostrata | F. Meister | image |
| Synedra rostrata | J. Pantocsek & P. Greguss | image |
| Synedra rostrata | J. Pantocsek | image |
| Synedra rumpens f. constricta | F. Hustedt | image |
| Synedra rumpens f. major | E.V. Østrup | image |
| Synedra rumpens f. nipponica | B.V. Skvortzov | image |
| Synedra rumpens | F.T. Kützing | image |
| Synedra rumpens var. familiaris | (F.T. Kützing) V.S. Poretzky | image |
| Synedra rumpens var. fragilarioides | A. Grunow | image |
| Synedra rumpens var. genuina | A. Grunow | image |
| Synedra rumpens var. islandica | E.V. Østrup | image |
| Synedra rumpens var. meneghiniana | A. Grunow | image |
| Synedra rumpens var. nipponica | B.V. Skvortzov | image |
| Synedra rumpens var. okamurae | B.V. Skvortzov | image |
| Synedra rumpens var. robusta | E.E. Manguin | image |
| Synedra rumpens var. scotica | A. Grunow | image |
| Synedra rumpens var. sinica | B.V. Skvortzov | image |
| Synedra salina | W. Smith | image |
| Synedra salinarum | J. Pantocsek | image |
| Synedra sauvineti | P.C.M. Petit | image |
| Synedra saxonica | F.T. Kützing | image |
| Synedra scalaris | C.G. Ehrenberg | image |
| Synedra scalaris | C.G. Ehrenberg | image |
| Synedra sceptrum f. fossilis | R. Gutwinski | image |
| Synedra sceptrum | R. Gutwinski | image |
| Synedra sceptrum var. mesolepta | R. Gutwinski | image |
| Synedra sceptrum var. mesolepta | R. Gutwinski | image |
| Synedra schaarschmidtii | A. Kanitz | image |
| Synedra schaarschmidtii var. alessiana | J. Schaarschmidt | image |
| Synedra schroeteri | F. Meister | image |
| Synedra schumanni | G.L. Rabenhorst | image |
| Synedra scina | M.H. Hohn & J. Hellerman | image |
| Synedra septata | P.L. Crouan & H.M. Crouan | image |
| Synedra sigma | F.T. Kützing | image |
| Synedra sigmoidea | (Nitzsch) Kützing | image |
| Synedra sigmoidea | C.G. Ehrenberg | image |
| Synedra simbirskiana | (A. Grunow & J. Pantocsek) H.-J. Schrader | image |
| Synedra simbirskiana | A. Grunow | image |
| Synedra smithii | E. O'Meara | image |
| Synedra smithii | J. Ralfs | image |
| Synedra socialis | G.L. Rabenhorst | image |
| Synedra spathulata | A.F.W. Schimper | image |
| Synedra spathulata | E. O'Meara | image |
| Synedra spectabilis | C.G. Ehrenberg | image |
| Synedra sphaerophora | F. Meister | image |
| Synedra spinulaeformis | W. Smith | image |
| Synedra splendens | (F.T. Kützing) F.T. Kützing | image |
| Synedra splendens var. aequalis | (F.T. Kützing) A. Grunow | image |
| Synedra splendens var. danica | (F.T. Kützing) A. Grunow | image |
| Synedra splendens var. debilis | G.L. Rabenhorst | image |
| Synedra splendens var. interrupta | (B. Auerswald) Rabenhorst | image |
| Synedra splendens var. longissima | (W. Smith) A. Grunow | image |
| Synedra splendens var. obtusa | (W. Smith) Grunow | image |
| Synedra splendens var. radians | (F.T. Kützing) E. O'Meara | image |
| Synedra splendens var. vitrea | (F.T. Kützing) G.L. Rabenhorst | image |
| Synedra splendida | C.G. Ehrenberg | image |
| Synedra stauroneis | C.G. Ehrenberg | image |
| Synedra stela | M.H. Hohn & J. Hellerman | image |
| Synedra strangulata | V. Zanon | image |
| Synedra striata | C.G. Ehrenberg | image |
| Synedra stricta | G.H.H. Karsten | image |
| Synedra striolata | C.G. Ehrenberg | image |
| Synedra subaequalis f. curvata | J. Pantocsek | image |
| Synedra subarcuata | C.W. Nägeli ex F.T. Kützing | image |
| Synedra subtilis | (F.T. Kützing) F.T. Kützing | image |
| Synedra subula | C.M. Sande Lacoste & W.F.R. Suringar | image |
| Synedra subulata | C.G. Ehrenberg | image |
| Synedra superba | F.T. Kützing | image |
| Synedra superba var. genuina | A. Grunow | image |
| Synedra superba var. minor | A. Grunow | image |
| Synedra superba var. robusta | (J. Ralfs) A. Grunow | image |
| Synedra suriana | J. Pantocsek & P. Gregus | image |
| Synedra szurdokpuespoekiensis | M. Hajós | image |
| Synedra tabulata | (C.A. Agardh) Kützing | image |
| Synedra tabulata f. angusta | J. Thomas & E.A. Gonzalves | image |
| Synedra tabulata f. curta | H.F. Van Heurck | image |
| Synedra tabulata f. densestriata | M.E.K. Møller | image |
| Synedra tabulata f. punctata | M. Hajós | image |
| Synedra tabulata var. australis | E.E. Manguin | image |
| Synedra tabulata var. delicatula | (A. Grunow) R. Ross | image |
| Synedra tabulata var. jeniseyensis | B.V. Skvortzov | image |
| Synedra tabulata var. lata | M.H. Giffen | image |
| Synedra tabulata var. tenuistriata | F. Meister | image |
| Synedra tabulata var. thalassotrix | (P.T. Cleve) A.F. Schwarz | image |
| Synedra taeniata | J. Pantocsek | image |
| Synedra tenella | A. Grunow | image |
| Synedra tenella var. brevis | A. Grunow | image |
| Synedra tenera f. acicularis | A. Cleve-Euler | image |
| Synedra tenera var. hinganica | B.V. Skvortzov | image |
| Synedra tenera var. lanceolata | E.V. Østrup | image |
| Synedra tenera | W. Smith | image |
| Synedra tenuis | F.T. Kützing | image |
| Synedra tenuis var. subtilis | (F.T. Kützing) J.-J. Brun | image |
| Synedra tenuissima | (Kützing) Kützing | image |
| Synedra tenuistriata | F. Meister | image |
| Synedra tergestina | (F.T. Kützing) F.T. Kützing | image |
| Synedra thalassotrix | P.T. Cleve | image |
| Synedra thermalis | F.T. Kützing | image |
| Synedra tibialis | J.A. Tempère & J.-J. Brun | image |
| Synedra transylvanica | J. Pantocsek | image |
| Synedra tropica | A. Grunow | image |
| Synedra truncata | (Greville) Ralfs | image |
| Synedra ulna | (Nitzsch) Ehrenberg | image |
| Synedra ulna f. arcuata | E.V. Østrup | image |
| Synedra ulna f. balatonis | (J. Pantocsek) A. Cleve-Euler | image |
| Synedra ulna f. biwensis | B.V. Skvortzov & M. Noda | image |
| Synedra ulna f. clavata Å. | Berg | image |
| Synedra ulna f. communis | B.V. Skvortzov | image |
| Synedra ulna f. constricta | Ant. Mayer | image |
| Synedra ulna f. constricta | B.V. Skvortzov, illeg. | image |
| Synedra ulna f. continua | A. Cleve-Euler | image |
| Synedra ulna f. contracta | F. Hustedt | image |
| Synedra ulna f. curta | (B.V. Skvortzov) B.V. Skvortzov | image |
| Synedra ulna f. curta | B.V. Skvortzov | image |
| Synedra ulna f. inflata | R. Maillard | image |
| Synedra ulna f. latestriata | E.V. Østrup | image |
| Synedra ulna f. marina | G.L. Rabenhorst | image |
| Synedra ulna f. mesocampa | (L.A. Brebisson) G.L. Rabenhorst | image |
| Synedra ulna f. pygmaea | Ant. Mayer | image |
| Synedra ulna f. rostrata | (J. Pantocsek) A. Cleve-Euler | image |
| Synedra ulna f. rostrata | Ant. Mayer | image |
| Synedra ulna f. salina | (W. Smith) West & G.S. West | image |
| Synedra ulna f. staurodestituta_('stauro destituta') | Pantocsek | image |
| Synedra ulna f. strumosa | O. Müller | image |
| Synedra ulna f. subconstricta | Ant. Mayer | image |
| Synedra ulna f. typica | Ant. Mayer | image |
| Synedra ulna f. undulata | H. Limanowska | image |
| Synedra ulna f. vitrea | (F.T. Kützing) A. Kurz | image |
| Synedra ulna subsp. danica | (Kützing) Skabichewski | image |
| Synedra ulna var. actinastroides | E.J. Lemmermann | image |
| Synedra ulna var. acuminata | W. Carruthers | image |
| Synedra ulna var. acus - - | | image |
| Synedra ulna var. acutissima | B.V. Skvortzov | image |
| Synedra ulna var. aequalis | (F.T. Kützing) F. Hustedt | image |
| Synedra ulna var. aequalis | (F.T. Kützing) J.-J. Brun | image |
| Synedra ulna var. africana | F. Meister | image |
| Synedra ulna var. amphirhynchus | (C.G. Ehrenberg) A. Grunow | image |
| Synedra ulna var. andina | E.E. Manguin | image |
| Synedra ulna var. biceps | (F.T. Kützing) O. Kirchner | image |
| Synedra ulna var. bicurvata | (Biene) A. Grunow | image |
| Synedra ulna var. calcarea | R. d'Aubert | image |
| Synedra ulna var. chaseana | B.W. Thomas | image |
| Synedra ulna var. claviceps | F. Hustedt | image |
| Synedra ulna var. constricta | G.S. Venkataraman | image |
| Synedra ulna var. contracta | E.V. Østrup | image |
| Synedra ulna var. crassa | E.V. Østrup | image |
| Synedra ulna var. crassa | G.S. Venkataraman, illeg. | image |
| Synedra ulna var. curta | Ant. Mayer | image |
| Synedra ulna var. curta | M. Peragallo | image |
| Synedra ulna var. danica | (Kützing) Van Heurck | image |
| Synedra ulna var. dorsiventralis | (O. Müller) B.J. Cholnoky | image |
| Synedra ulna var. fonticola | F. Hustedt | image |
| Synedra ulna var. fossilis | J. Pantocsek | image |
| Synedra ulna var. genuina | A. Grunow | image |
| Synedra ulna var. genuina | O. Kirchner | image |
| Synedra ulna var. impressa | F. Hustedt | image |
| Synedra ulna var. intermedia | K.S. Mereschkowsky | image |
| Synedra ulna var. jeniseyensis | B.V. Skvortzov | image |
| Synedra ulna var. lanceolata | (F.T. Kützing) H.F. Van Heurck | image |
| Synedra ulna var. lanceolata | A. Grunow | image |
| Synedra ulna var. longirostris | (A. Grunow) A. Cleve-Euler | image |
| Synedra ulna var. longissima | (W. Smith) J.-J. Brun | image |
| Synedra ulna var. minima | A.M. Muzafarov | image |
| Synedra ulna var. mongolica | B.V. Skvortzov | image |
| Synedra ulna var. obtusa | (W. Smith) H.F. Van Heurck | image |
| Synedra ulna var. oxyrhynchus | (F.T. Kützing) E. O'Meara | image |
| Synedra ulna var. platycephala | E.E. Manguin | image |
| Synedra ulna var. ramesii_('ramesi') | (J. Heribaud & Peragallo) Hustedt | image |
| Synedra ulna var. recta | (F.T. Kützing) R. Ross | image |
| Synedra ulna var. salina | (W. Smith) J. Schaarschmidt | image |
| Synedra ulna var. siamensis_('siamense') | M. Hirano | image |
| Synedra ulna var. spathulifera | (A. Grunow) H.F. Van Heurck | image |
| Synedra ulna var. splendens | (F.T. Kützing) O. Kirchner | image |
| Synedra ulna var. subaequalis | (A. Grunow) H.F. Van Heurck | image |
| Synedra ulna var. subaequalis | B.V. Skvortzov | image |
| Synedra ulna var. subcontracta | E.V. Østrup | image |
| Synedra ulna var. tenuirostris | B.V. Skvortzov | image |
| Synedra ulna var. tenuirostris | F. Hustedt | image |
| Synedra ulna var. tergestina | (F.T. Kützing) G.L. Rabenhorst | image |
| Synedra ulna var. tergestina | F.T. Kützing | image |
| Synedra ulna var. thalheimii | O. Kirchner | image |
| Synedra ulna var. undulata | A. Grunow | image |
| Synedra ulna var. vasta | J. Pantocsek | image |
| Synedra ulna var. vitrea | (F.T. Kützing) H.F. Van Heurck | image |
| Synedra undosa | A. Grunow | image |
| Synedra undulans | W. Gregory | image |
| Synedra undulata | (Bailey) W. Smith | image |
| Synedra undulata | Bailey | image |
| Synedra undulata | J. Schumann | image |
| Synedra undulata var. curvata | H. Heiden | image |
| Synedra ungeriana | (A. Grunow) D.M. Williams | image |
| Synedra utermoehlii | Hustedt | image |
| Synedra valens | C.G. Ehrenberg | image |
| Synedra van-heurckii_('Van | Heurcki') J.-J. Brun | image |
| Synedra vaucheriae | (F.T. Kützing) F.T. Kützing | image |
| Synedra vaucheriae f. brevis | Ant. Mayer | image |
| Synedra vaucheriae f. lanceolata | Ant. Mayer | image |
| Synedra vaucheriae f. typica | Ant. Mayer | image |
| Synedra vaucheriae var. capitata | B.V. Skvortzov | image |
| Synedra vaucheriae var. capitellata | (Grunow) Hustedt | image |
| Synedra vaucheriae var. deformis | A. Grunow | image |
| Synedra vaucheriae var. distans | A. Grunow | image |
| Synedra vaucheriae var. fasciculata | (C.A. Agardh) Brun | image |
| Synedra vaucheriae var. genuina | H.F. Van Heurck | image |
| Synedra vaucheriae var. inflata | E.E. Manguin | image |
| Synedra vaucheriae var. jeniseyensis | B.V. Skvortzov | image |
| Synedra vaucheriae var. minutissima | (F.T. Kützing) Brun | image |
| Synedra vaucheriae var. parvula | (F.T. Kützing) G.L. Rabenhorst | image |
| Synedra vaucheriae var. perminuta | (A. Grunow) H.F. Van Heurck | image |
| Synedra vaucheriae var. rhomboidalis | Ant. Mayer | image |
| Synedra vaucheriae var. septentrionalis | E.V. Østrup | image |
| Synedra vaucheriae var. sigmoidea | B.V. Skvortzov | image |
| Synedra vaucheriae var. tenuior | A. Grunow | image |
| Synedra vaucheriae var. truncata | (R.K. Greville) G.L. Rabenhorst | image |
| Synedra vaucheriae var. undulata | Ant. Mayer | image |
| Synedra ventricosa | G.L. Rabenhorst | image |
| Synedra vermicularis | (F.T. Kützing) F.T. Kützing | image |
| Synedra victoriae | J. Woloszynska | image |
| Synedra virginalis | F.T. Kützing | image |
| Synedra vitrea f. angustior | A. Grunow | image |
| Synedra vitrea f. longirostris | A. Grunow | image |
| Synedra vitrea | F.T. Kützing | image |
| Synedra vitrea var. distorta | F. Meister | image |
| Synedra wigandii | G.L. Rabenhorst | image |