The INA is a card file and online reporting system maintained at the Silva Center for Phycological Documentation of the University Herbarium, University of California, Berkeley. It contains nearly 200,000 names of algae (in the broad sense). The BPU is a card file containing bibliographic references pertaining to algal taxonomy.
A working list of algal type specimens at UC is available here
Results from INA database
| Name | Author | Source | Citation | Year |
|---|---|---|---|---|
| GYROSIGMA | Hassall | image | ||
| Gyrosigma acuminatum var. angulatum | Hagelstein | N.Y. Acad. Sci., Sci. Surv. Porto Rico & Virgin Is. | 8: 365, pl. 5: fig. 7 | 1939 |
| Gyrosigma acuminatum var. baikalense_('baikalensis') | Skvortzov | Philippine J. Sc. | 62: 316, pl. 5: fig. 60 | 1937 |
| Gyrosigma acuminatum var. brebissonii | (Grunow) Cleve | image | ||
| Gyrosigma acuminatum var. curtum_('curta') | (Grunow) Cleve | image | ||
| Gyrosigma acuminatum var. gallica | (Grunow) Cleve | image | ||
| Gyrosigma acuminatum var. gallicum_('gallica') | (H. Peragallo) Cleve | K. Svenska Vet.-Akad. Handl., ser. 4, | 26{2}: 114 | 1894 |
| Gyrosigma acuminatum var. lacustre | (W. Smith) Meister | image | ||
| Gyrosigma acuminatum var. neglectum | McCall | image | ||
| Gyrosigma acuminatum var. okamurae | (Skvortzov) Skvortzov & Noda | image | ||
| Gyrosigma acuminatum_('acuminata') | (Kützing) Rabenhorst | image | ||
| Gyrosigma aestuarii | (Brébisson ex Kützing) Griffith & Henfrey | Microgr. Dict.: | 302 | 1855 |
| Gyrosigma agellus | (Ehrenberg) Rabenhorst | image | ||
| Gyrosigma algoris | Carter & Bailey-Watts | image | ||
| Gyrosigma angulatum | (Quekett) Griffith & Henfrey | Microgr. Dict.: | 302 | 1855 |
| Gyrosigma angustum | (Donkin) Cleve | K. Svenska Vet.-Akad. Handl., ser. 4, | 26{2}: 120 | 1894 |
| Gyrosigma angustum var. sumatranum_('sumatrana') | Cleve | image | ||
| Gyrosigma apula | Rabenhorst | image | ||
| Gyrosigma arcticum | (Cleve) Cleve | Kongl. Svenska Vetensk.-Akad. Handl., ser. 4, | 26{2}: 119 | 1894 |
| Gyrosigma arcuatum | (Donkin) F.A.S. Sterrenburg in R. Jahn, F.A.S. Sterrenburg, & W.-H. Kusber | Diatom Research | 20: 308 | 2005 |
| Gyrosigma attenuatum f. hippocampus | (W. Smith) Brockmann | image | ||
| Gyrosigma attenuatum f. intermedium_('intermedia') | Petkoff | image | ||
| Gyrosigma attenuatum f. subbalticum | Carlson | image | ||
| Gyrosigma attenuatum f. typicum | Rabenhorst | Alg. Sachs. Dec. | 69/70: no. 688 | 1858 (May) |
| Gyrosigma attenuatum var. antarcticum_(`antarctica') | J. Frenguelli & H.A. Orlando | Publ. Inst. Antárt. Argent. | 5: 94, pl. II: fig. 50 | 1958 |
| Gyrosigma attenuatum var. asiaticum_('asiatica') | Skvortzov & Meyer | image | ||
| Gyrosigma attenuatum var. asiaticum_('asiatica') | Skvortzov | image | ||
| Gyrosigma attenuatum var. gigas | McCall | image | ||
| Gyrosigma attenuatum var. hippocampus | (Ehrenberg) Schulz | image | ||
| Gyrosigma attenuatum var. nipponicum_('nipponica') | Skvortzov | image | ||
| Gyrosigma attenuatum var. scalprum | (Gaillon) Cleve | K. Svenska Vet.-Akad. Handl., ser. 4, | 26{2}: 116 | 1894 |
| Gyrosigma attenuatum var. typicum | Cleve-Euler | image | ||
| Gyrosigma attenuatum_('attenuata') | (Kützing) Rabenhorst | image | ||
| Gyrosigma baculum | W.E. Herwig & F.A.S. Sterrenburg in Sterrenburg et al. | Phytotaxa | 172: 76, figs. 24-27 | 2014 |
| Gyrosigma baikalense_('baikalensis') | Skvortzov | image | ||
| Gyrosigma baileyi | (Grunow) Cleve | image | ||
| Gyrosigma baltica | (Ehrenberg) Rabenhorst | image | ||
| Gyrosigma balticum f. maeoticum | (Pantocsek) Proschkina-Lavrenko | image | ||
| Gyrosigma balticum var. atlanticum | W. West | image | ||
| Gyrosigma balticum var. brevius | T.G. Chin & S.-C. Liu | Journal of the University of Amoy (Xiamen) | 3: 139, fig. A | 1979 |
| Gyrosigma balticum var. californicum_('californica') | (Grunow) Cleve | image | ||
| Gyrosigma balticum var. diminutum | (Grunow) A. Cardinal, M. Poulin, & L. Bérard-Therriault | Naturaliste Canad. | 113: 171 | 1986 |
| Gyrosigma balticum var. incurvum_('incurva') | Meister | image | ||
| Gyrosigma balticum var. lorenzii | (Grunow) J. Frenguelli & H.A. Orlando | Publ. Inst. Antárt. Argent. | 5: 94 | 1958 |
| Gyrosigma balticum var. simile_('similis') | (Grunow) Cleve | image | ||
| Gyrosigma balticum var. sinense_('sinensis') | (Ehrenberg) Cleve | image | ||
| Gyrosigma balticum var. sinicum | T.G. Chin & S.-C. Liu | Journal of the University of Amoy (Xiamen) | 3: 138, fig. E | 1979 |
| Gyrosigma balticum var. sulcatum_('sulcata') | Mereschkowsky | image | ||
| Gyrosigma balticum var. turgidum | S.R. Stidolph | New Zealand J. Bot. | 19: 405 fig. 13 in Stidolph 1980 (New Zealand J. Bot. 18: 379) | 1981 |
| Gyrosigma balticum var. wansbeckii_('wandsbeckii') | (Donkin) Heiden | image | ||
| Gyrosigma balticum_(`baltica') | (Ehrenberg) Rabenhorst | Süssw.-Diat.: | 47 | 1853 |
| Gyrosigma beaufortianum | Hustedt | image | ||
| Gyrosigma bhusavalense_('bhusavalensis') | Sarode & Kamat | image | ||
| Gyrosigma bistriatum | (Schumann) Migula | Krypt.-Fl. Deutschl., Alg. | 1: 241 | 1906 |
| Gyrosigma caffra | Giffen | image | ||
| Gyrosigma calaritanum | V. Zanon | Bollettino di pesca, piscicoltura e idrobiologia | 3: 219, fig. 4 | 1948 |
| Gyrosigma cali | G. Reid in G. Reid & D.M. Williams | Phycol. Res. | 51: 140, figs. 66-72 | 2003 |
| Gyrosigma californicum | (Grunow) G. Reid in G. Reid & D.M. Williams | Phycol. Res. | 51: 133 | 2003 |
| Gyrosigma centropunctatum | Yuhang Li, T. Nagumo & Kuidong Xu in Li et al. | Diatom Research | 35: 256, figs. 1-22 | 2020 |
| Gyrosigma closterioides | (Grunow) G. Reid | Diatom | 20: 49 | 2004 |
| Gyrosigma coelophilum | N. Okamoto & T. Nagumo in N. Okamoto, T. Nagumo, J. Tanaka, & I. Inouye | Phycologia | 42: 499, figs. 6-20 | 2003 |
| Gyrosigma compactum | (Greville) Cleve | image | ||
| Gyrosigma compactum var. constrictum_('constricta') | (Grunow) Cleve | image | ||
| Gyrosigma concilians | (Cleve) Okolodkov | Nov. Sist. Nizsh. Rast. [Bot. Inst. Akad. Nauk SSSR] | 26: 38 | 1989 |
| Gyrosigma concilians var. constrictum_('constricta') | Okolodkov | Nov. Sist. Nizsh. Rast. [Bot. Inst. Akad. Nauk SSSR] | 26: 39 | 1989 |
| Gyrosigma contortum | Mereschkowsky | image | ||
| Gyrosigma crassum | Meister | image | ||
| Gyrosigma curvulum | Rabenhorst | image | ||
| Gyrosigma cuspidatum_('cuspidata') | Rabenhorst | image | ||
| Gyrosigma decorum | (W. Smith) Griffith & Henfrey | Microgr. Dict.: | 302 | 1855 |
| Gyrosigma delicatulum | (W. Smith) Griffith & Henfrey | Microgr. Dict.: | 302 | 1855 |
| Gyrosigma diaphanum | Cleve | image | ||
| Gyrosigma diminutum | (Grunow) Cleve | K. Svenska Vetensk.-Akad. Handl., ser. 4, | 26{2}: 119 | 1894 |
| Gyrosigma diminutum var. constrictum_('constricta') | (Grunow) Cleve | image | ||
| Gyrosigma dissimile_(`dissimilis') | Yu. A. Mikishin | Bot. Zhurn. | 76: 106, fig. 1 | 1991 |
| Gyrosigma distortoides | Manguin | image | ||
| Gyrosigma distortum | (W. Smith) Cleve | image | ||
| Gyrosigma distortum | (W. Smith) Griffith & Henfrey | Microgr. Dict.: | 303 | 1855 |
| Gyrosigma distortum var. brevirostre_('brevirostris') | Brockmann | image | ||
| Gyrosigma distortum var. diaphanum | (Cleve) Cleve-Euler | image | ||
| Gyrosigma distortum var. diaphanum | (Cleve) R. Ross | image | ||
| Gyrosigma distortum var. marinum | Cleve-Euler | image | ||
| Gyrosigma distortum var. parkeri | (Harrison) Cleve | image | ||
| Gyrosigma distortum var. stauroneioides | (Grunow) Cleve | image | ||
| Gyrosigma diversitatum | Giffen | image | ||
| Gyrosigma dongzhaiense | Yuhang Li, T. Nagumo & Kuidong Xu in Li et al. | Diatom Research | 35: 256, figs. 23-32, 34-43 | 2020 |
| Gyrosigma dubia | Rabenhorst | image | ||
| Gyrosigma dubium | Meister | image | ||
| Gyrosigma elegans | Ricard | image | ||
| Gyrosigma elegans var. recurvum | Ricard | image | ||
| Gyrosigma elongatum | (W. Smith) G.S. West | image | ||
| Gyrosigma elongatum | (W. Smith) Griffith & Henfrey | Microgr. Dict.: | 302 | 1855 |
| Gyrosigma euhippus | F.A.S. Sterrenburg & R. Ross in F.A.S. Sterrenburg | Diatom Res. | 7: 139 | 1992 |
| Gyrosigma euhippus | Sterrenburg & Ross | image | ||
| Gyrosigma evanescens | A. Cardinal, M. Poulin, & L. Bérard-Therriault | Naturaliste Canad. | 113: 171, figs. 32-34 | 1986 |
| Gyrosigma excentricum | Prowse | image | ||
| Gyrosigma exile_('exilis') | (Grunow) Reimer | image | ||
| Gyrosigma eximioides | P. Rivera | Gayana, Botanica | 28: 37, fig. 50 | 1974 |
| Gyrosigma eximium | (Thwaites) Boyer | image | ||
| Gyrosigma exoticum | Cholnoky | image | ||
| Gyrosigma exoticumoides | Negoro & Gotoh | image | ||
| Gyrosigma fasciola | (Ehrenberg) Cleve | image | ||
| Gyrosigma fasciola | (Ehrenberg) Griffith & Henfrey | Microgr. Dict.: | 303 | 1855 |
| Gyrosigma fasciola var. arcuatum_('arcuata') | (Donkin) Cleve | image | ||
| Gyrosigma fasciola var. arcuatum_(`arcuata') | (Donkin) Cleve | Kongl. Svenska Vetensk.-Akad. Handl., ser. 4, | 26{2}: 116 | 1894 |
| Gyrosigma fasciola var. closterioides | (Grunow) Proshkina-Lavrenko | Diatom. Analiz | 3: 249 | 1950 |
| Gyrosigma fasciola var. closterioides | Grunow | image | ||
| Gyrosigma fasciola var. genuinum | Cleve-Euler | image | ||
| Gyrosigma fasciola var. globiferum_('globifera') | Meister | image | ||
| Gyrosigma fasciola var. prolongatum | (W. Smith) Proshkina-Lavrenko | Diatom. Analiz | 3: 249 | 1950 |
| Gyrosigma fasciola var. sulcatum_('sulcata') | (Grunow) Cleve | image | ||
| Gyrosigma fasciola var. tenuirostre_('tenuirostris') | (Grunow) Cleve | image | ||
| Gyrosigma febigeri_('febigerii') | (Grunow) Cleve | image | ||
| Gyrosigma fenestriatum_('fenestriata') | Meister | image | ||
| Gyrosigma floweri | G. Reid | Proc. Int. Diatom Symp. | 19: 81, figs. 23-30 | 2008 |
| Gyrosigma fogedii | S.R. Stidolph | Diatom Res. | 9: 215, figs. 1-4, 10-21 | 1994 |
| Gyrosigma fogedii | Stidolph | image | ||
| Gyrosigma fonticola_('fonticolum') | Hustedt | image | ||
| Gyrosigma formosum | (W. Smith) Griffith & Henfrey | Microgr. Dict.: | 302 | 1855 |
| Gyrosigma foxtonium_('foxtonia') | S.R. Stidolph | Nova Hedwigia | 47: 379, figs. 1-5 | 1988 |
| Gyrosigma gibbosum | Ricard | image | ||
| Gyrosigma gibbyae_(`gibbyi') | G. Reid in G. Reid & D.M. Williams | Phycol. Res. | 51: 132, figs.18-22 | 2003 |
| Gyrosigma glaciale | (Cleve) Cleve | image | ||
| Gyrosigma gondwana | G. Moser, H. Lange-Bertalot & D. Metzeltin | Insel der Endemiten: Geobotanisches Phänomen Neukaledonien (Bibliotheca Diatomologica 38): | 194, pl. 41: figs. 1, 2 | 1998 |
| Gyrosigma grovesii_('grovei') | (H. Peragallo) Cleve | image | ||
| Gyrosigma hankense_('hankensis') | Skvortzov | image | ||
| Gyrosigma hassallii | Rabenhorst | image | ||
| Gyrosigma hippocampus | (Ehrenberg) Hassall | image | ||
| Gyrosigma hudsonii | Poulin & Cardinal | image | ||
| Gyrosigma hummii | Hustedt | image | ||
| Gyrosigma incomptum_('incompta') | Hohn & Hellerman | image | ||
| Gyrosigma inflatum | Ricard | image | ||
| Gyrosigma intermedium | (W. Smith) Griffith & Henfrey | Microgr. Dict.: | 302 | 1855 |
| Gyrosigma intermedium var. nubecula | (W. Smith) Griffith & Henfrey | Microgr. Dict.: | 302 | 1855 |
| Gyrosigma itaparicanum | (Zimmermann) Andrade & Teixeira | image | ||
| Gyrosigma khandeshense_('khandeshensis') | Sarode & Kamat | image | ||
| Gyrosigma kolbei | Skvortzov | image | ||
| Gyrosigma kolbei | Skvortzov | image | ||
| Gyrosigma kolbei var. ienniseiense_('ienniseiensis') | Skvortzov | image | ||
| Gyrosigma kolbei var. jeneseyensis | Skvortzov | image | ||
| Gyrosigma kolbei var. obtusum_('obtusa') | Skvortzov | image | ||
| Gyrosigma krammeri | J.P. Kociolek, C.L. Graeff & R.L. Lowe | Polish Bot. J. | 55: 56, figs. 1-15 | 2010 |
| Gyrosigma kuetzingii | (Grunow) Cleve | image | ||
| Gyrosigma kuetzingii var. nipponicum_('nipponica') | Skvortzov & Noda | image | ||
| Gyrosigma lacustre | (W. Smith) Griffith & Henfrey | Microgr. Dict.: | 303 | 1855 |
| Gyrosigma lamprocampa | Rabenhorst | image | ||
| Gyrosigma lanceolatum | Ricard | image | ||
| Gyrosigma latiusculum | Mereschkowsky | image | ||
| Gyrosigma limosum | F.A.S. Sterrenburg & G.J.C. Underwood | Proceedings of the Academy of Natural Sciences of Philadelphia | 148: 167, figs. 1-7 | 1997 |
| Gyrosigma lineare | (Grunow) Cleve | image | ||
| Gyrosigma lineare var. longissimum_('longissima') | (Cleve) Cleve | image | ||
| Gyrosigma litorale | (W. Smith) Cleve | image | ||
| Gyrosigma littorale | (W. Smith) Griffith & Henfrey | Microgr. Dict.: | 303 | 1855 |
| Gyrosigma lucianum | Cholnoky | image | ||
| Gyrosigma macedonicum | Z. Levkov, S. Krstic & T. Nakov in Levkov, Krstic, Metzeltin & Nakov | Icon. Diatomol. | 16: 70, pl. 126, pl. 127: figs. 3-8 | 2007 |
| Gyrosigma macrum | (W. Smith) Cleve | image | ||
| Gyrosigma macrum | (W. Smith) Griffith & Henfrey | Microgr. Dict.: | 303 | 1855 |
| Gyrosigma macrum var. minus | Peterfi & Robert | image | ||
| Gyrosigma maharashtrense_('maharashtrensis') | Sarode & Kamat | image | ||
| Gyrosigma marginatum | Voigt | image | ||
| Gyrosigma mediterraneum | (Cleve) Cleve | image | ||
| Gyrosigma mediterraneum var. calcareum_('calcarea') | (Brun) Cleve | image | ||
| Gyrosigma mediterraneum var. chinense_('chinensis') | Cleve | image | ||
| Gyrosigma moresbyanum_('moresbyana') | E. Reichardt | Nova Hedwigia | 47: 92, pl. IV: figs. 1-4 | 1988 |
| Gyrosigma murphyi | G. Reid in G. Reid & D.M. Williams | Phycol. Res. | 51: 138, figs. 51-56 | 2003 |
| Gyrosigma naja | (Meister) F.A.S. Sterrenburg | Proceedings of the Academy of Natural Sciences of Philadelphia | 150: 302 | 2000 |
| Gyrosigma neglectum | Frenguelli | image | ||
| Gyrosigma nipkowii | Meister | Kieselalg. Asien: | 43, figs. 134-136 | 1932 |
| Gyrosigma nipponicum_('nipponica') | (Skvortzov) Skvortzov & Noda | image | ||
| Gyrosigma nodiferum | (Grunow) Reimer | image | ||
| Gyrosigma nodiferum var. latum | T.G. Chin & S.-C. Liu | Journal of the University of Amoy (Xiamen) | 3: 140, fig. B | 1979 |
| Gyrosigma normanii | (Ralfs) Mann | image | ||
| Gyrosigma obliquum | (Grunow) Boyer | image | ||
| Gyrosigma obscurum | (W. Smith) Griffith & Henfrey | Microgr. Dict.: | 302 | 1855 |
| Gyrosigma obtusatum | (Sullivan) Boyer | image | ||
| Gyrosigma olhonense_('olhonensis') | G. Reid | Proc. Int. Diatom Symp. | 19: 76 | 2008 |
| Gyrosigma orbitum | M. Thaler & I. Kaczmarska | Bot. Mar. | 52: 62, figs. 1-14 | 2009 |
| Gyrosigma pallidum | Riznyk | image | ||
| Gyrosigma parkeri | (Harrison) Boyer | image | ||
| Gyrosigma parvuloides | Cholnoky | image | ||
| Gyrosigma parvulum | Hustedt | image | ||
| Gyrosigma peisonis | (Grunow) Hustedt | image | ||
| Gyrosigma peisonis var. majus_('major') | Y. Peng, P. Rioual & F.A.S. Sterrenburg in Peng et al. | Phytotaxa | 245: 122, figs. 4-18 | 2016 |
| Gyrosigma pensacolae | F.A.S. Sterrenburg | Botanica Marina | 38: 405, figs. 8-12, 17-20 | 1995 |
| Gyrosigma pensacolae | Sterrenburg | image | ||
| Gyrosigma perthense | John | image | ||
| Gyrosigma plagiostomum | (Grunow) Cleve | image | ||
| Gyrosigma plagiostomum var. indicum_('indica') | Meister | image | ||
| Gyrosigma procerum | Hustedt | image | ||
| Gyrosigma prolongatum | (W. Smith) Cleve | image | ||
| Gyrosigma prolongatum | (W. Smith) Griffith & Henfrey | Microgr. Dict.: | 303 | 1855 |
| Gyrosigma prolongatum var. closterioides | (Grunow) Cleve | Kongl. Svenska Vetensk.-Akad. Handl., ser. 4, | 26{2}: 117 | 1894 |
| Gyrosigma prolongatum var. typicum | Cleve-Euler | image | ||
| Gyrosigma prolongatum var. villafrancas | Mereschkowsky | image | ||
| Gyrosigma pseudokuetzingii | Kobayasi | image | ||
| Gyrosigma quadratum | (W. Smith) Griffith & Henfrey | Microgr. Dict.: | 302 | 1855 |
| Gyrosigma rapsonii | Cholnoky | image | ||
| Gyrosigma rautenbachiae | Cholnoky | image | ||
| Gyrosigma rectum | (Donkin) Cleve | K. Svenska Vet.-Akad. Handl., ser. 4, | 26{2}: 119 | 1894 |
| Gyrosigma rectum var. intermedium_('intermedia') | (H. Peragallo) Cleve | image | ||
| Gyrosigma rectum var. minutum_('minuta') | (Donkin) Cleve | K. Svenska Vet.-Akad. Handl., ser. 4, | 26{2}: 120 | 1894 |
| Gyrosigma reimeri | F.A.S. Sterrenburg | Proc. Acad. Nat. Sci. Philadelphia | 145: 220, figs. 8-12, 44-49 | 1994 |
| Gyrosigma reimeri | Sterrenburg | image | ||
| Gyrosigma reversum | (Gregory) Hendey | image | ||
| Gyrosigma reversum | (Gregory) Hendey | image | ||
| Gyrosigma reversum | Ricard | image | ||
| Gyrosigma rigidum | (W. Smith) Griffith & Henfrey | Microgr. Dict.: | 302 | 1855 |
| Gyrosigma robustum | (Grunow) Cleve | image | ||
| Gyrosigma robustum var. inflexum_('inflexa') | (H. Peragallo) Cleve | image | ||
| Gyrosigma rostratum | Bing Liu, D.M. Williams & Bangqin Huang | Phytotaxa | 203: 256, figs. 2-20 | 2015 |
| Gyrosigma sagitta | (Tempere & Brun) Mann | image | ||
| Gyrosigma scalpellum | Rabenhorst | image | ||
| Gyrosigma scalproides | (Rabenhorst) Cleve | image | ||
| Gyrosigma scalproides var. eximium_('eximia') | (Thwaites ex W. Smith) Cleve | image | ||
| Gyrosigma scalproides var. obliquum_('obliqua') | (Grunow) Cleve | image | ||
| Gyrosigma scalproides var. typicum | Cleve-Euler | image | ||
| Gyrosigma scalprum | (Gaillon) F.A.S. Sterrenburg | Diatom Res. | 7: 143 | 1992 |
| Gyrosigma scalprum | (Gaillon) Sterrenburg | image | ||
| Gyrosigma schmidianum | F.A.S. Sterrenburg & M.A. Tiffany | Diatom Research | 19: 276, figs. 1-5, 11-14 | 2004 |
| Gyrosigma sciotoense | (W.S. Sullivant) Cleve | K. Svenska Vet.-Akad., ser. 4, | 27{3}: expl. pl. I: fig. 5 | 1895 |
| Gyrosigma simile | (Grunow) Boyer | image | ||
| Gyrosigma simile | (Grunow) Cleve | image | ||
| Gyrosigma sinense_(`sinensis') | (Ehrenberg) T.V. Desikachary | Atlas Diatoms | 5: 11 | 1988 |
| Gyrosigma skvortzovii | G. Reid | Proc. Int. Diatom Symp. | 19: 79, figs. 31, 32 | 2008 |
| Gyrosigma spathulatum | Ricard | Bull. Mus. Natl. Hist. Nat. [Paris]. Bot. | 23: 208, pl. IV: figs. 42-46 | 1975 |
| Gyrosigma speciosum | (W. Smith) Griffith & Henfrey | Microgr. Dict.: | 302 | 1855 |
| Gyrosigma spectabile | (Grunow) Cleve | image | ||
| Gyrosigma spenceri | (Ehrenberg) Frenguelli | image | ||
| Gyrosigma spenceri f. arnottii | Cleve-Euler | image | ||
| Gyrosigma spenceri f. major | Cleve-Euler | image | ||
| Gyrosigma spenceri var. biwense_('biwensis') | Skvortzov & Noda | image | ||
| Gyrosigma spenceri var. crassum | Cleve-Euler | image | ||
| Gyrosigma spenceri var. curvula | (Grunow) Reimer | image | ||
| Gyrosigma spenceri var. exile_('exilis') | (Grunow) Cleve | image | ||
| Gyrosigma spenceri var. minutulum_('minutula') | (Grunow) Cleve | image | ||
| Gyrosigma spenceri var. nodiferum_('nodifera') | (Grunow) Cleve | image | ||
| Gyrosigma spenceri var. okamurae | Skvortzov | image | ||
| Gyrosigma spenceri var. ponticum_('pontica') | Mereschkowsky | image | ||
| Gyrosigma spenceri var. smithii | (Grunow) Cleve-Euler | image | ||
| Gyrosigma spenceri_('spencerii') | (W. Smith) Cleve | image | ||
| Gyrosigma spenceri_('spencerii') | Cleve | image | ||
| Gyrosigma spenceri_(`spencerii') | (Bailey ex Quekett) Griffith & Henfrey | Microgr. Dict.: | 303 | 1855 |
| Gyrosigma spenseri var. sinicum_('sinica') | Skvortzov | The China Journal | 11: 41, fig. 5 | 1929 |
| Gyrosigma sterrenburgii | S.R. Stidolph | Diatom Res. | 7: 347, figs. 1-21, 32-38 | 1992 |
| Gyrosigma sterrenburgii | Stidolph | image | ||
| Gyrosigma stidolphii | F.A.S. Sterrenburg | Diatom Res. | 7: 146, figs. 21-25, 43-47 | 1992 |
| Gyrosigma stidolphii | Sterrenburg | image | ||
| Gyrosigma stompsii | Cholnoky | image | ||
| Gyrosigma strigilis | (W. Smith) Cleve | image | ||
| Gyrosigma strigilis | (W. Smith) Griffith & Henfrey | Microgr. Dict.: | 302 | 1855 |
| Gyrosigma strigilis var. capense_('capensis') | (P. Petit) Cleve | K. Svenska Vet.-Akad. Handl., ser. 4, | 26{2}: 115 | 1894 |
| Gyrosigma strigilis var. excentriraphe | T.G. Chin & S.-C. Liu | Journal of the University of Amoy (Xiamen) | 3: 139, fig. F | 1979 |
| Gyrosigma strigilis var. smithii | (Grunow) Cleve | image | ||
| Gyrosigma strigilis var. tropicum_('tropica') | (Grunow) Cleve | image | ||
| Gyrosigma strigosum | (W. Smith) Griffith & Henfrey | Microgr. Dict.: | 302 | 1855 |
| Gyrosigma subangustum | Hustedt | Duke Univ. Mar. Sta. Bull. | 6: 35, pl. 10: fig. 10 | 1955 |
| Gyrosigma subrectum | (Brébisson) B. Van de Vijver & W.-H. Kusber | Notulae Algarum | 263: 2 | 2022 |
| Gyrosigma subsalinum | (M. Peragallo) J. Frenguelli & H.A. Orlando ex S.L. VanLandingham | Cat. Diatoms | 4: 2013 | 1971 |
| Gyrosigma subsalinum | J. Frenguelli & H.A. Orlando | Publ. Inst. Antárt. Argent. | 5: 94 | 1958 |
| Gyrosigma subsalinum var. antarcticum_(`antarctica') | J. Frenguelli & H.A. Orlando | Publ. Inst. Antárt. Argent. | 5: 94, pl. II: fig. 49; pl. XI: figs. 9, 10 | 1958 |
| Gyrosigma subsalsum | (Wislouch & Kolbe) A. Cardinal, M. Poulin, & L. Bérard-Therriault in M. Poulin | Diatom Research | 17: 466 | 2002 |
| Gyrosigma subsalsum | (Wislouch & Kolbe) A. Cardinal, M. Poulin, & L. Bérard-Therriault | Naturaliste Canad. | 113: 177 | 1986 |
| Gyrosigma subtile | (Brébisson ex Kützing) G. Reid in G. Reid & D.M. Williams | Phycol. Res. | 51: 139 | 2003 |
| Gyrosigma sulcatum | (Grunow) Heiden | image | ||
| Gyrosigma sulcatum var. tenuirostre_('tenuirostris') | (Grunow) Heiden | image | ||
| Gyrosigma temperei | Cleve | image | ||
| Gyrosigma tenuirostrum | (Grunow) Cleve-Euler | image | ||
| Gyrosigma tenuissimum | (W. Smith) Cleve | image | ||
| Gyrosigma tenuissimum | (W. Smith) Griffith & Henfrey | Microgr. Dict.: | 303 | 1855 |
| Gyrosigma tenuissimum var. angustissima | Simonsen | image | ||
| Gyrosigma tenuissimum var. angustissimum_('angustissima') | R. Simonsen | Kieler Meeresf. | 15: 83, pl. 12: fig. 7 | 1959 |
| Gyrosigma tenuissimum var. genuinum_('genuina') | Cleve-Euler | image | ||
| Gyrosigma tenuissimum var. gundulae | P.E. Hargraves & F.A.S. Sterrenburg in Sterrenburg et al. | Phytotaxa | 172: 76, figs. 28-36 | 2014 |
| Gyrosigma tenuissimum var. hyperboreum_('hyperborea') | (Grunow) Cleve | image | ||
| Gyrosigma tenuissimum var. latiusculum | Mereschkowsky | image | ||
| Gyrosigma tenuissimum var. subtilissimum_('subtilissima') | (Grunow) Cleve | image | ||
| Gyrosigma terryanum | (H. Peragallo) Cleve | image | ||
| Gyrosigma terryanum f. fontanum | Reimer | image | ||
| Gyrosigma thuringica | (Kützing) Rabenhorst | image | ||
| Gyrosigma tubicola_(`tubicolum') | F.A.S. Sterrenburg & M.A. Tiffany | Diatom Research | 19: 278, figs. 6-10, 15-18 | 2004 |
| Gyrosigma turgidum_('turgida') | (S. Stidolph) S. Stidolph | Nova Hedwigia | 47: 380 | 1988 |
| Gyrosigma uncinatum | Ricard | image | ||
| Gyrosigma variipunctatum | Hagelstein | N.Y. Acad. Sci., Sci. Surv. Porto Rico & Virgin Is. | 8: 367, pl. 5: fig. 8 | 1939 |
| Gyrosigma variistriatum | Hagelstein | N.Y. Acad. Sci., Sci. Surv. Porto Rico & Virgin Is. | 8: 367, pl. 5: fig. 9 | 1939 |
| Gyrosigma waitangianum_('waitangiana') | S.R. Stidolph | Nova Hedwigia | 56: 142, figs. 1-5 | 1993 |
| Gyrosigma waitangianum_('waitangiana') | Stidolph | image | ||
| Gyrosigma wansbeckii | (Donkin) Cleve | image | ||
| Gyrosigma wansbeckii var. minutum_(`minuta') | A. Cardinal, M. Poulin, & L. Bérard-Therriault | Naturaliste Canad. | 113: 179, figs. 45, 46 | 1986 |
| Gyrosigma wansbeckii var. peisonis | (Grunow) Cleve | image | ||
| Gyrosigma wansbeckii var. subsalinum_('subsalina') | (H. Peragallo) Cleve | K. Svenska Vet.-Akad. Handl., ser. 4, | 26{2}: 119 | 1894 |
| Gyrosigma wormleyi | (Sullivant) Boyer | image | ||
| Gyrosigma xiamenense | Bing Liu, F.A.S. Sterrenburg & Bangqin Huang | Phytotaxa | 222: 261, figs. 2-30 | 2015 |
| NAVICULA subg. | GYROSIGMA (Hassall) Kützing | image | ||
| Nitzschia gyrosigma | T. Ohtsuka | Phycol. Res. | 53: 144, figs. 29-43 | 2005 |
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