| Name | Author | Source | Citation | Year |
|---|
| EUZYGNEMA | Gay | image |
| Harpochytrium zygnematacearum | Skuja | image |
| NEOZYGNEMA | Yamagishi | image |
| Neozygnema laevisporum | (Jao) Yamagishi | image |
| ZYGNEMA | Bory | image |
| ZYGNEMA | C. Agardh | image |
| ZYGNEMA | C. Agardh | image |
| ZYGNEMA | Hansgirg | image |
| ZYGNEMA sect. | EUZYGNEMA Gay | image |
| Zygnema 'velox' | | image |
| ZYGNEMA | | image |
| ZYGNEMA | | image |
| ZYGNEMA | | image |
| ZYGNEMA | | image |
| ZYGNEMA | | image |
| Zygnema abbreviatum | Hassall | image |
| Zygnema abreviatum | Bonhomme | image |
| Zygnema adnatum | (Vaucher) C. Agardh | Syst. Alg.: | 81 | 1824 |
| Zygnema adpectinatum | Transeau | image |
| Zygnema aegyptiacum | De Toni & Levi | image |
| Zygnema aequale | (Kützing) De Toni | image |
| Zygnema aequale | Hassall | image |
| Zygnema aequale var. subsalsa | Schmidle | image |
| Zygnema aestivum | A.H. Hassall | image |
| Zygnema affine | (Kützing) De Toni | image |
| Zygnema affine | Hassall | image |
| Zygnema affine | Kützing | image |
| Zygnema affine var. periodicum | Hepp | image |
| Zygnema africanum | Fritsch & Stephens | image |
| Zygnema airense | Compère | image |
| Zygnema algeriense | Gauthier-Lièvre | image |
| Zygnema alkaliense_('alkaliensis') | M. Noda | J. Fac. Sci., Niigata Univ., ser. 2, | 4: 139, pl. 7: figs. 7, 8 | 1963 |
| Zygnema allorgei | Gauthier-Lièvre | image |
| Zygnema altaica | Skvortzov & Noda | image |
| Zygnema altaica | Skvortzov | image |
| Zygnema alternatum | Hassall | image |
| Zygnema alternatum | Hassall | image |
| Zygnema americanum | (Transeau) Czurda | image |
| Zygnema amplum | Zeller | image |
| Zygnema angulare | Hassall | image |
| Zygnema angulatum | Hassall | image |
| Zygnema anomalum | (Hassall) Crouan frat. | image |
| Zygnema anomalum var. crassum | Wolle | image |
| Zygnema anomalum var. fertile 'Wolle' | | image |
| Zygnema aplanosporum | R. Stancheva, J.D. Hall & R. Sheath in R. Stancheva et al. | J. Phycol. | 48: 411, figs. 1: E-G; 2: A-I, O-Q; 3: A-I; 4: A-C | 2012 |
| Zygnema aquaticum | (Gauthier-Lièvre) R. Stancheva, J.D. Hall, R.M. McCourt & R.G. Sheath in Stancheva et al. | J. Phycol. | 50: 800 | 2014 |
| Zygnema arctum | C. Agardh | Syst.: | 79 | 1824 |
| Zygnema areolatum | Taft & Transeau | image |
| Zygnema argillarii | Kadlubowska | image |
| Zygnema atlanticum | Gauthier-Lièvre | image |
| Zygnema atrocoeruleum var. crassa | Misra | image |
| Zygnema atrocoeruleum | West & West | image |
| Zygnema azureum | Taft | image |
| Zygnema barcense | Gauthier-Lièvre | image |
| Zygnema bellis | Hassall | image |
| Zygnema bicolor | (J.E. Smith) C. Agardh | image |
| Zygnema bifarium | Bailey mss. | image |
| Zygnema biforme | Jao | image |
| Zygnema binuclearioides | A.B. Cribb | Queensland Naturalist | 21: 8, figs. 1-5 | 1974 |
| Zygnema bipunctatum | (Roth) Lyngbye | image |
| Zygnema bipunctatum var. gracile | (Vaucher) Lyngbye | image |
| Zygnema bipunctatum var. unipunctatum | Lyngbye | image |
| Zygnema bipunctatum var. unipunctatum | S.F. Gray | image |
| Zygnema biturigense | Ripart | image |
| Zygnema bohemicum | Czurda | image |
| Zygnema borinquenae | (Tiffany) Krieger | image |
| Zygnema borzae | Krieger | image |
| Zygnema brebissonii | Kützing | image |
| Zygnema brevissimum | Hassall | image |
| Zygnema bullosum_('bullosa') | Bory | image |
| Zygnema byssoideum | (Harvey) De Toni | image |
| Zygnema caerulescens | (J.E. Smith) C. Agardh | image |
| Zygnema californicum | R. Stancheva, J.D. Hall & R. Sheath in R. Stancheva et al. | J. Phycol. | 48: 415, figs. 1: A-D; 2: J-N; 3: J,K | 2012 |
| Zygnema calosporum | Jao | image |
| Zygnema capense | (Grunow) Wille | image |
| Zygnema capense | Hodgetts | image |
| Zygnema capucinum | (C. Agardh) Duby | image |
| Zygnema carinatum | Taft | image |
| Zygnema carinthiacum | Beck-Mannagetta | image |
| Zygnema carinthiacum | Beck-Mannagetta | image |
| Zygnema carteri | Czurda | image |
| Zygnema catenaeforme | Hassall | image |
| Zygnema catenatum | Transeau | image |
| Zygnema chalybeospermum f. inflata | R.N. Singh | image |
| Zygnema chalybeospermum | Hansgirg | image |
| Zygnema chalybeospermum var. gracile | Hansg. | image |
| Zygnema chalybeospermum var. gracile | Hansgirg | SitzBer. K. Böhm. Ges. Wiss., Math.-Naturw. Cl. | 1891: 326 | 1891 |
| Zygnema chungii | Li | image |
| Zygnema circumcarinatum | Czurda | image |
| Zygnema coeruleum | Czurda | image |
| Zygnema collinsianum | Transeau | image |
| Zygnema collinsianum var. ornatum | L.C. Li | image |
| Zygnema commune | Czurda | image |
| Zygnema commune | Hassall | Ann. mag. Nat. Hist. | 10{62}: 39 | 1842 |
| Zygnema compressum | Czurda | image |
| Zygnema compressum | Lyngbye | image |
| Zygnema condensatum | (Vaucher) C. Agardh | image |
| Zygnema congolense | Gauthier-Lièvre | image |
| Zygnema conspicuum | (Hassall) Transeau | image |
| Zygnema crassissima | (Ardiss. & Straff.) De Toni | image |
| Zygnema crassiusculum | E.N. Transeau | image |
| Zygnema crassum | (Kützing) De Toni | image |
| Zygnema crassum | Kützing | image |
| Zygnema crouanii | Desmazieres | image |
| Zygnema crouanii | Rabenhorst | image |
| Zygnema cruciata [(Vaucher)] [C. | Agardh] | image |
| Zygnema cruciatum | (Vaucher) C. Agardh | image |
| Zygnema cruciatum f. crassior | Rabenhorst | image |
| Zygnema cruciatum f. irregulare | Teodoresco | image |
| Zygnema cruciatum f. leiosporum | Collins | image |
| Zygnema cruciatum f. leiosporum | Collins | image |
| Zygnema cruciatum f. leiosporum | F.S. Collins | Tufts Coll. Stud. (Sci.) | 3: 71, no fig. | 1912 |
| Zygnema cruciatum f. tenuior | Rabenhorst | image |
| Zygnema cruciatum var. articulatum | C. Agardh | image |
| Zygnema cruciatum var. breviarticulatum_('brevi-articulatum') | C. Agardh | image |
| Zygnema cruciatum var. caeruleum | Transeau | image |
| Zygnema cruciatum var. crassius | Kützing | image |
| Zygnema cruciatum var. hausmannii_('hausmanni') | De Notaris | image |
| Zygnema cruciatum var. olivascens | Grognard bei Craveri | image |
| Zygnema cucurbitum | Jao | image |
| Zygnema curvatum | C. Agardh | image |
| Zygnema cyaneum | Czurda | image |
| Zygnema cyanosphaeroidicum_('cyanosphaeroidica') | O. Bock & W. Bock | Arch. Hydrobiol. | 52: 441, text-fig. 2 | 1956 |
| Zygnema cyanosporum | Cleve | image |
| Zygnema cylindricum | Transeau | image |
| Zygnema cylindrospermum | (West & West) Krieger | image |
| Zygnema cylindrosporum | Czurda | image |
| Zygnema cylindrosporum var. crassum_('crassa') | Bhashyakarla Rao | image |
| Zygnema cyrenaicum | Gauthier-Lièvre | image |
| Zygnema czurdae | Randhawa | image |
| Zygnema daliense | Jao & Lee Yaoyin | image |
| Zygnema deciminum | (Müll.) C. Agardh | image |
| Zygnema deciminum | (Müller) C. Agardh in Liljeblad, | Utkast Svensk. Fl. ed. 3: | 595 | 1816 |
| Zygnema deciminum | Schousboe | image |
| Zygnema deciminum_('decimina') [(Müll.)] [C. | Agardh] | image |
| Zygnema decussatum | (Transeau) Czurda | image |
| Zygnema decussatum | (Vaucher) C. Agardh | Syn. Alg. Scand.: | XXXII | 1817 |
| Zygnema diductum | Hassall | image |
| Zygnema dillwynii | Kützing | image |
| Zygnema djalonense_('djalonensis') | Gauthier-Lièvre | image |
| Zygnema dubium | Bory de St.-Vincent | image |
| Zygnema dubium | Hassall | image |
| Zygnema duplicato-ornatum | Y.J. Ling | image |
| Zygnema durandoi | Gauthier-Lièvre | image |
| Zygnema ellipsoideum | Jao | image |
| Zygnema ellipticum | F. Gay | Mon. loc. Conj.: | 85, pl. IV: fig. 1 | 1884 |
| Zygnema ellipticum | Gay | image |
| Zygnema elongatum | (Vaucher) Berkeley | image |
| Zygnema elongatum | (Vaucher) Hassall | image |
| Zygnema elongatum_('longatum') | (Vaucher) C. Agardh | Syn. alg. Scand.: | XXXII, 101 | 1817 |
| Zygnema emersum_('emersa') | Skvortzov & Noda | image |
| Zygnema emersum_('emersa') | Skvortzov | image |
| Zygnema epigaeum | Carmichael mss. | image |
| Zygnema ericetorum | (Roth) Hansgirg | image |
| Zygnema ericetorum f. fluitans | (Kützing) De Toni | image |
| Zygnema ericetorum subsp. genuinum | Hansgirg | image |
| Zygnema ericetorum subsp. terrestre | (Kirchner) Hansgirg | image |
| Zygnema ericetorum var. fluitans | (Kützing) Hansgirg | image |
| Zygnema ericetorum var. terrestre | (Kirchner) De Toni | image |
| Zygnema ericetorum var. torulosum | Bornet | image |
| Zygnema eumetabletos | Skuja | image |
| Zygnema excommune | Transeau | image |
| Zygnema excompressum | Transeau | image |
| Zygnema excrassum | Transeau | image |
| Zygnema exile | Delastre mscr. | image |
| Zygnema extenue | Jao | image |
| Zygnema exuvielliforme | (Jao) Krieger | image |
| Zygnema fanicum | Li | image |
| Zygnema fasciatum | C. Agardh | image |
| Zygnema favosum | Jao & Chian Chengyu | image |
| Zygnema fertile | Fritsch & Rich | image |
| Zygnema fertile | Fritsch & Rich | image |
| Zygnema flavescens | Hassall | image |
| Zygnema flavum | Taft | image |
| Zygnema foveolatum | C.C. Jao & H.J. Hu | Oceanol. et Limnol. Sin. | 9: 194, pl. I: figs. 3, 4 | 1978 |
| Zygnema frigidum | Taft | image |
| Zygnema frigidum var. turgidum | Margalef | image |
| Zygnema gangeticum | Bhashyakarla Rao | image |
| Zygnema gedeanum | Czurda | image |
| Zygnema genuflexum | (Roth) C. Agardh | Liljeblad, Utkast Svensk Fl. ed. 3: | 595 | 1816 |
| Zygnema genuflexum_('genuflexa') [(Roth)] [C. | Agardh] | image |
| Zygnema germanicum | Czurda | image |
| Zygnema giganteum | Randhawa | image |
| Zygnema globosum | Czurda | image |
| Zygnema gorakhporense | R.N. Singh | image |
| Zygnema gracile | (Vaucher) C. Agardh in Liljeblad | Utkast Svensk Fl. ed. 3: | 595 | 1816 |
| Zygnema gracile | (Vaucher) Duby | image |
| Zygnema gracile | C. Agardh | image |
| Zygnema gracile | Hassall | image |
| Zygnema gracile_('gracilis') [(Vaucher) | C. Agardh] | image |
| Zygnema grevilleanum | Hassall | image |
| Zygnema grevillei_('grevillii') 'Hassall' | | image |
| Zygnema guangzhouense_('guangzhouensis') | Zhu | image |
| Zygnema guineense | (Gauthier-Lièvre) R. Stancheva, J.D. Hall, R.M. McCourt & R.G. Sheath in Stancheva et al. | J. Phycol. | 50: 800 | 2014 |
| Zygnema gymnesicum_('gymnesica') | Margalef | image |
| Zygnema hansgirgii_('hansgirgi') | Schmidle | image |
| Zygnema hassallii | Bennett | image |
| Zygnema hassallii | Jenner | image |
| Zygnema hassallii | Jenner ex Hassall | image |
| Zygnema hausmannii | (de Notaris) Czurda | image |
| Zygnema heydrichii var. indicum | Randhawa | image |
| Zygnema heydrichii_('heydrichi') | Schmidle | image |
| Zygnema himalayense_('himalayensis') | Randhawa | image |
| Zygnema hodgettsii | Krieger | image |
| Zygnema hupehense | C.C. Jao & H.J. Hu | Oceanol. et Limnol. Sin. | 9: 195, pl. I: figs. 5-7 | 1978 |
| Zygnema hypnosporum_('hypnospora') | Rich | image |
| Zygnema immersum | (Hassall) Wittrock | image |
| Zygnema inaequale | Hassall | image |
| Zygnema indicum var. damodarii_('damodari') | Kachroo | image |
| Zygnema indicum_('indica') | Misra | image |
| Zygnema inflatum | (Vaucher) C. Agardh | image |
| Zygnema insigne | (Hassall) Kützing | image |
| Zygnema insigne f. kazachstanicum | Rundina | image |
| Zygnema insigne | Hassall | image |
| Zygnema insigne var. confusosporum_('confusospora') | Habeeb | image |
| Zygnema insignisporum | Couch | image |
| Zygnema insolitum | Jao & Y.J. Ling | image |
| Zygnema intermedium | Hassall | image |
| Zygnema interruptum | A.H. Hassall | image |
| Zygnema interscalare | Roemer | image |
| Zygnema irregulare | H. Krieger | Verh. Bot. Vereins Prov. Brandenburg | 81: 173, fig. 8 | 1941 |
| Zygnema irregulare | Krieger | image |
| Zygnema iyengarii_('iyengari') | Randhawa | image |
| Zygnema jaoi | Krieger | image |
| Zygnema javanicum | (Martens) De Toni | image |
| Zygnema jenneri | Hassall | image |
| Zygnema jenneri | Hassall ms. | image |
| Zygnema jilinense | Jao & Wei Yinxin | image |
| Zygnema kabylicum | Gauthier-Lièvre | image |
| Zygnema kashmirense_('kashmirensis') | Misra | image |
| Zygnema khannae f. minus_('minor') | C.C. Jao & H.J. Hu | Oceanol. et Limnol. Sin. | 9: 197, pl. II: figs. 3, 4 | 1978 |
| Zygnema khannae | Skuja | image |
| Zygnema kiangsiense | L.C.Li | image |
| Zygnema kolhapurense | Kamat | image |
| Zygnema kwangtungense | Ley | image |
| Zygnema labbei | Gauthier-Lièvre | image |
| Zygnema lacustre | Y.-X. Wei & Y.-K. Yung in Wei, Yung, Jackson, & Sawa | Canad. J. Bot. | 67: 3235, figs. 3, 4, 44, 45 | 1989 |
| Zygnema lacustre | Y.X. Wei & Yung | image |
| Zygnema laetevirens_('laete-virens') | Klebs | Untersuch. Bot. Inst Tübingen | 2: 335, pl. III: fig. 14 | 1886 |
| Zygnema laeve | Y.J. Ling | image |
| Zygnema laevisporum | Jao | image |
| Zygnema lamellatum | (C.B. Rao) Krieger | image |
| Zygnema lawtonianum | Taft | image |
| Zygnema laxiporum | Zhu | image |
| Zygnema leiospermum | de Bary in Rabenhorst | Alg. Sachs. [exsicc.] | 63/64: no. 638 | 1857 |
| Zygnema leiospermum | de Bary | Untersuch. Conjugaten: | 77, pl. 1: figs. 7-14 | 1858 |
| Zygnema leiospermum f. megasporum_('megaspora') | W. West | image |
| Zygnema leiospermum f. minus_('minor') | W. West | image |
| Zygnema leiospermum var. fragile | Chodat & Zender | image |
| Zygnema leiospermum var. fragile | R. Chodat & Zender | image |
| Zygnema lenticulare | C.C. Jao & H.J. Hu | Oceanol. et Limnol. Sin. | 9: 195, pl. I: figs. 8, 9 | 1978 |
| Zygnema lineare_('linearis') | Suhr | image |
| Zygnema littoreum | Lyngbye | image |
| Zygnema longatum | (Vaucher) C. Agardh | image |
| Zygnema longisporum | C.C. Jao & H.J. Hu | Oceanol. et Limnol. Sin. | 9: 196, pl. II: fig. 1 | 1978 |
| Zygnema lotienense | C.C. Jao & H.J. Hu | Oceanol. et Limnol. Sin. | 9: 197, pl. I: fig. 12 | 1978 |
| Zygnema luteosporum | Czurda | image |
| Zygnema lutescens | (Kützing) De Toni | image |
| Zygnema lutescens | (Vaucher) C. Agardh | image |
| Zygnema maghrebianum | (Gauthier-Lièvre) R. Stancheva, J.D. Hall, R.M. McCourt & R.G. Sheath in Stancheva et al. | J. Phycol. | 50: 801 | 2014 |
| Zygnema magniporum | H.W. Liang in H.W. Liang, Y.X. Wei, & H.J. Hu | Oceanol. et Limnol. Sin. | 10: 174, pl. I: fig. 14 | 1979 |
| Zygnema magniporum | Liang | image |
| Zygnema maharastrense | Kamat | image |
| Zygnema mairei | Gauthier-Lièvre | image |
| Zygnema majus | Czurda | image |
| Zygnema malformatum | Hassall | image |
| Zygnema malleolum | Hassall | image |
| Zygnema margalefianum | M. Aboal | Arch. Hydrobiol. Suppl. | 93 (Algol. Stud. 65): 24, figs. 1-16 | 1992 |
| Zygnema marocanum | (Gauthier-Lièvre) R. Stancheva, J.D. Hall, R.M. McCourt & R.G. Sheath in Stancheva et al. | J. Phycol. | 50: 801 | 2014 |
| Zygnema maximum | Hassall | image |
| Zygnema mayyanadense | (Kothari) R. Stancheva, J.D. Hall, R.M. McCourt & R.G. Sheath in Stancheva et al. | J. Phycol. | 50: 801 | 2014 |
| Zygnema mediterraneum | Gauthier-Lièvre | image |
| Zygnema melanosporum f. daliense_('dalense') | Misra | image |
| Zygnema melanosporum | Lagerheim | image |
| Zygnema micropunctatum | Transeau | image |
| Zygnema microsporum_('microspora') | Chevallier | image |
| Zygnema minimum | Hassall- | image |
| Zygnema mirabile | (Dillwyn) Sprengel | image |
| Zygnema mirabile | (W. West & G.S. West) Czurda | image |
| Zygnema mirabile | Hassall | image |
| Zygnema mirabile | Hassall | Brit. Freshw. Alg. | 1: 156, pl. XXV: figs. 1, 2, 3 | 1845 |
| Zygnema mirabile_('mirabilis') | A.H. Hassall | image |
| Zygnema mirandum | Taft | image |
| Zygnema mirificum | Jao | image |
| Zygnema misrae | Krieger | image |
| Zygnema momoniense | W. West | image |
| Zygnema monosphaerum_('monosphaera') | Schousboe | image |
| Zygnema montanum_(`montana') | B. Tracanna | Opera Lilloana | 35: 88, 128, pl. 38: figs. 5, 8 | 1985 |
| Zygnema mucigena | Randhawa | image |
| Zygnema mucosum_('mucosa') | Skvortzov & Noda | image |
| Zygnema mucosum_('mucosa') | Skvortzov | image |
| Zygnema neglectum | Hassall | image |
| Zygnema neocruciatum | Transeau | image |
| Zygnema neopectinatum | Transeau | image |
| Zygnema ningxiaense | Y.J. Ling & Y.M. Zheng | Oceanol. et Limnol. Sin. | 10: 285, pl. I: fig. 1 | 1979 |
| Zygnema nitidum | (Dillwyn) C. Agardh | image |
| Zygnema nitidum | (O.F. Mueller) C. Agardh | image |
| Zygnema nitidum | C. Agardh | image |
| Zygnema nitidum var. adnatum | (Agardh) Brébisson & Godey | image |
| Zygnema nitidum var. adnatum | (Vaucher) Brébisson & Godey | Alg. Falaise: | 15 | 1835 |
| Zygnema nitidum var. adnatum | (Vaucher) C. Agardh | Syst. Alg.: | 81 | 1824 |
| Zygnema nitidum var. adnatum | C. Agardh mss | image |
| Zygnema nitidum var. tenue | C. Agardh | image |
| Zygnema nitidum var. tenuius_('tenuior') | C. Agardh | image |
| Zygnema nivale | (Kützing) De Toni | image |
| Zygnema nobile | Jao & Wei Yinxin | image |
| Zygnema normanii var. lamellatum_('lamellata') | Bhashyakarla Rao | image |
| Zygnema normanii_('normani') | Taft | image |
| Zygnema norvegicum | (J.Z. Kadlubowska & A. Langangen) R. Stancheva, J.D. Hall, R.M. McCourt & R.G. Sheath in Stancheva et al. | J. Phycol. | 50: 801 | 2014 |
| Zygnema novae-caesareae | Habeeb | image |
| Zygnema numidicum | Gauthier-Lièvre | image |
| Zygnema obesum | C.C. Jao & H.J. Hu | Oceanol. et Limnol. Sin. | 9: 194, pl. I: figs. 1, 2 | 1978 |
| Zygnema ocellatum | H.W. Liang in H.W. Liang, Y.X. Wei, & H.J. Hu | Oceanol. et Limnol. Sin. | 10: 175, pl. I: figs. 10-13 | 1979 |
| Zygnema ocellatum | Liang | image |
| Zygnema olivaceum | H.W. Liang in H.W. Liang, Y.X. Wei, & H.J. Hu | Oceanol. et Limnol. Sin. | 10: 175, pl. I: figs. 8, 9 | 1979 |
| Zygnema olivaceum | Liang | image |
| Zygnema oranense_('oranensis') | Gauthier-Lièvre | image |
| Zygnema orbiculare | Hassall | image |
| Zygnema ordinarium | Berkeley | image |
| Zygnema ornatissimum | L.J. Bi | Oceanol. et Limnol. Sin. | 10: 354, pl. I: fig. 1 | 1979 |
| Zygnema ornatum | (Li) Transeau | image |
| Zygnema oudhense_('oudhensis') | Randhawa | image |
| Zygnema oudhense_('oudhensis') | Randhawa | image |
| Zygnema ovale | (Hassall) Kützing | image |
| Zygnema oveidanum | Transeau | image |
| Zygnema oveidanum_('ovoidanum') 'Transeau' | | image |
| Zygnema pachydermum var. confervoides | W. West & G.S. West | image |
| Zygnema pachydermum | W. West & G.S. West | image |
| Zygnema pakistanicum_('pakistanica') | Khan & Faridi | image |
| Zygnema parvulum | (Kützing) Cooke | image |
| Zygnema parvum | Hassall | image |
| Zygnema pawhuskae | Taft | image |
| Zygnema pawhuskae | Taft | image |
| Zygnema pawneanum | Taft | image |
| Zygnema pawneanum var. africanum_('africana') | Gayral | image |
| Zygnema pectinatum | (Vaucher) C. Agardh | image |
| Zygnema pectinatum f. ellipsoideum_('ellipsoidea') | Gutwinski | image |
| Zygnema pectinatum f. ellipspoideum_('ellipsoidea') | Gutwinski | image |
| Zygnema pectinatum f. terrestre | (Rabenhorst) De Toni | image |
| Zygnema pectinatum subsp. anomalum | (Hassall) Hansgirg | image |
| Zygnema pectinatum subsp. conspicuum | (Hassall) Hansgirg | image |
| Zygnema pectinatum subsp. decussatum | (Vaucher) Hansgirg | image |
| Zygnema pectinatum subsp. genuinum | Hansgirg | image |
| Zygnema pectinatum var. anomalum | (Hassall) De Toni | image |
| Zygnema pectinatum var. confluens | Lyngbye | image |
| Zygnema pectinatum var. conspicuum | (Hassall) De Toni | image |
| Zygnema pectinatum var. crassum | Transeau | image |
| Zygnema pectinatum var. decussatum | (Vaucher) De Toni | image |
| Zygnema pectinatum var. terrestre | (Rabenhorst) Hansgirg | image |
| Zygnema pectinatum_('pectinata') [(Vaucher)] | C. Agardh | image |
| Zygnema peliosporum var. maximum_(`maxima') | B. Tracanna | Opera Lilloana | 35: 88, 128, pl. 38: figs. 2, 4, 6, 7 | 1985 |
| Zygnema peliosporum | Wittrock | image |
| Zygnema pellucidum | Hassall | image |
| Zygnema perforatum | Gauthier-Lièvre | image |
| Zygnema peruanum | (Kützing) De Toni | image |
| Zygnema pingshanense | Liang & Wang | image |
| Zygnema plakountiosporum | (Jao) Krieger | image |
| Zygnema polymorphum | Hassall | image |
| Zygnema porcatum | C.C. Jao & H.J. Hu | Oceanol. et Limnol. Sin. | 9: 196, pl. I: figs. 10, 11 | 1978 |
| Zygnema porcatum f. eremicum | Ling Yuanjie | image |
| Zygnema porticale [(Müller)] | Chevallier | image |
| Zygnema princeps | (Vaucher) Chevallier | image |
| Zygnema pseudocylindricum | Gauthier-Lièvre | image |
| Zygnema pseudodecussatum | Czurda | image |
| Zygnema pseudogedeanum | Gauthier-Lièvre | image |
| Zygnema pseudomougeotia | Gauthier-Lièvre | image |
| Zygnema pseudopectinatum | Czurda | image |
| Zygnema pulcherrimum_('pulcherrima') | Skvortzov & Noda | image |
| Zygnema pulcherrimum_('pulcherrima') | Skvortzov | image |
| Zygnema purpureum_('purpurea') | Wolle | image |
| Zygnema quadrangulatum f. minutum | Jao | image |
| Zygnema quadrangulatum | Jao | image |
| Zygnema quadratum | Hassall | image |
| Zygnema quadrispirale | Hassall | image |
| Zygnema quininum | (O.F.Müller) C. Agardh | image |
| Zygnema quininum | C. Agardh | image |
| Zygnema quininum var. crassisporum_('crassispora') | C. Agardh | image |
| Zygnema quininum var. elongatum_('longata') | (Vaucher) Lyngbye | Tent.: | 173 | 1819 |
| Zygnema quininum var. longatum | (Vaucher) Lyngbye | image |
| Zygnema ralfsii | (Hassall) Cooke | image |
| Zygnema ramosum | A. Ahmad & M.E. Goldstein in Desikachary & Raja Rao | Taxonomy of algae: | 482, pl. II: figs. 6-10 | 1980 |
| Zygnema randhawae | Krieger | image |
| Zygnema recedens | Schwabe | image |
| Zygnema recurvum | C. Agardh | image |
| Zygnema reinschii | De Toni | image |
| Zygnema reticulatum | Hallas | image |
| Zygnema reticulosporum | Gauthier-Lièvre | image |
| Zygnema reversum | Hassall | image |
| Zygnema rhynchonema | (Hansgirg) Hansgirg | image |
| Zygnema rivulare | Hassall | image |
| Zygnema rivulare_('rivularis') | Gauthier-Lièvre | image |
| Zygnema rostratum | Hassall | image |
| Zygnema saharae | Gauthier-Lièvre | image |
| Zygnema saharae var. scrobiculatum_('scrobiculata') | Gauthier-Lièvre | Bull. Soc. Hist. Nat. Affr. Nord | 32: 106, fig. 7E | 1941 |
| Zygnema saharae var. scrobiculatum_('strobiculata') | Gauthier-Lièvre | image |
| Zygnema salinum | (Kützing) De Toni | image |
| Zygnema schwabei | Krieger | image |
| Zygnema scrobiculatum | (Gauthier-Lièvre) J.Z. Kadłubowska | Flora Słodkowodna Polski | 12A: 415 | 1972 |
| Zygnema serpentinum | (O. F. Müll.) Dumortier | image |
| Zygnema serratum | Hassall | image |
| Zygnema seuratii | Gauthier-Lièvre | image |
| Zygnema shanxiense | Y.J. Ling | image |
| Zygnema shensiense | Jao | image |
| Zygnema shigaense | Yamagishi | image |
| Zygnema sinense | Jao | image |
| Zygnema skujae | Czurda | image |
| Zygnema smithii | (Transeau) Czurda | image |
| Zygnema sparsum | Jao & Lee Yaoyin | image |
| Zygnema sphaericum f. crassum_('crassa') | Misra | image |
| Zygnema sphaericum f. longiarticulatum_('longiarticulata') | Misra | image |
| Zygnema sphaericum f. megasporum_('megaspora') | Bhashyakarla Rao | image |
| Zygnema sphaericum f. microsporum_('microspora') | Venkataraman | image |
| Zygnema sphaericum_('sphaerica') | Misra | image |
| Zygnema sphagnophilum | (Gauthier-Lièvre) R. Stancheva, J.D. Hall, R.M. McCourt & R.G. Sheath in Stancheva et al. | J. Phycol. | 50: 801 | 2014 |
| Zygnema spirale | Fritsch | image |
| Zygnema spontaneum | Nordstedt | image |
| Zygnema srinagarense | Krieger | image |
| Zygnema stagnale | (Hassall) Kützing | image |
| Zygnema stagnale_('stagnalis') | M. Noda | J. Fac. Sci., Niigata Univ., ser. 2, | 4: 139, pl. 7: figs. 5, 6 | 1963 |
| Zygnema stellatum | Sprengel | image |
| Zygnema stelligera | Hardy in S.H. Lewis & T.J. Entwisle | Muelleria | 11: 87 | 1998 |
| Zygnema stellinum | (O.F. Müller) C. Agardh | image |
| Zygnema stellinum f. inflatum | Petkoff | image |
| Zygnema stellinum f. inflatum_('inflata') | Petkoff | image |
| Zygnema stellinum var. breviarticulatum | Kützing | image |
| Zygnema stellinum var. compressum | Gayral | image |
| Zygnema stellinum var. cylindrospermum | West & West | image |
| Zygnema stellinum var. genuinum | Kirchner | image |
| Zygnema stellinum var. punctatum | Filarszky | image |
| Zygnema stellinum var. rhynchonema | Hansgirg | image |
| Zygnema stellinum var. stagnale | (Hassall) Kirchner | image |
| Zygnema stellinum var. subtile | (Kützing) Kirchner | image |
| Zygnema stellinum var. tenue | (Kützing) Kirchner | image |
| Zygnema stellinum var. tetrachospermum | Kützing | image |
| Zygnema stellinum var. vaucheri | (C. Agardh) Kirchner | image |
| Zygnema stephensiae | Transeau | image |
| Zygnema sterile | Transeau | image |
| Zygnema striatum_('striata') | Olney | image |
| Zygnema striatum_('striata') | Olney | image |
| Zygnema subcruciatum | Transeau | image |
| Zygnema subcylindricum | H. Krieger | Verh. Bot. Vereins Prov. Brandenburg | 81: 174 | 1941 |
| Zygnema subcylindricum | Krieger | image |
| Zygnema subcylindrospermum | Prasad & Godward | image |
| Zygnema subcylindrospermum | Prasad & Godward | image |
| Zygnema subfanicum | Jao | image |
| Zygnema subfoveolatum | Chian | image |
| Zygnema subfoveolatum f. mengtzense | Chian | image |
| Zygnema subsalsum | (Schmidle) Krieger | image |
| Zygnema substellinum | Taft | image |
| Zygnema subtenue | Gauthier-Lièvre | image |
| Zygnema subtenue | Prasad & Godward | image |
| Zygnema subtenue | Prasad & Godward | image |
| Zygnema subtenue | Prasad | image |
| Zygnema subtile | Kützing | image |
| Zygnema subventricosum | Hassall | image |
| Zygnema sudanense | (Gauthier-Lièvre) R. Stancheva, J.D. Hall, R.M. McCourt & R.G. Sheath in Stancheva et al. | J. Phycol. | 50: 801 | 2014 |
| Zygnema synadelphum | Skuja | image |
| Zygnema talguppense | (Iyengar) Krieger | image |
| Zygnema tenue f. compressum | Gauthier-Lièvre | image |
| Zygnema tenue | Kützing | image |
| Zygnema tenue var. compressum | Gauthier-Lièvre | image |
| Zygnema tenuissimum | Grunow | image |
| Zygnema tenuissimum | Hassall | image |
| Zygnema terrestre_('terrestris') | Randhawa | image |
| Zygnema tetraspermum | P.F. Reinsch | image |
| Zygnema tetraspira | Schousboe | image |
| Zygnema tholosporum | Magnus & Wille | image |
| Zygnema thwaitesii | Olney | image |
| Zygnema thwaitesii | Olney | image |
| Zygnema tibeticum | Jao & Wei Yinxin | image |
| Zygnema transeauianum | Couch | image |
| Zygnema tropicum | V. Martens | image |
| Zygnema tumidulum | Jao | image |
| Zygnema tunetanum | (Gauthier-Lièvre) R. Stancheva, J.D. Hall, R.M. McCourt & R.G. Sheath in Stancheva et al. | J. Phycol. | 50: 801 | 2014 |
| Zygnema tuomeyi | Bailey | image |
| Zygnema undulatum | V. Martens | image |
| Zygnema vaginatum f. crassum_('crassa') | Paruk. | image |
| Zygnema vaginatum | Klebs | image |
| Zygnema variabile_('variabilis') | Skvortzov & Noda | image |
| Zygnema variabile_('variabilis') | Skvortzov | image |
| Zygnema varians | A.H. Hassall | image |
| Zygnema varians | Hassall | image |
| Zygnema vaucheri var. brebissonii | (Kützing) Rabenhorst | image |
| Zygnema vaucheri var. stagnale | (Hassall) Cooke | image |
| Zygnema vaucheri var. subtile | (Kützing) Rabenhorst | image |
| Zygnema vaucheri var. tenue | (Kützing) Rabenhorst | image |
| Zygnema vaucheri_('Vaucherii') | C. Agardh | Syst.: | 77 | 1824 |
| Zygnema vaucheri_('vaucherii') | C. Agardh | image |
| Zygnema venustum | C.C. Jao & H.J. Hu | Oceanol. et Limnol. Sin. | 9: 197, pl. II: fig. 2 | 1978 |
| Zygnema vermiculatum | L.J. Bi | Oceanol. et Limnol. Sin. | 10: 355, pl. I: fig. 2(A,B) | 1979 |
| Zygnema verrucopunctatum | Prasad & Godward | image |
| Zygnema verrucopunctatum | Prasad & Godward | image |
| Zygnema verrucosum | Jao | image |
| Zygnema vesicatum | Hassall | image |
| Zygnema woodsii | Hassall | Brit. Freshw. Alg. | 1: 153, pl. XXXIII: fig. 2 | 1845 |
| Zygnema woodsii | Hassall ms. | image |
| Zygnema yuciense | Y.J. Ling | image |
| Zygnema yunnanense | Li | image |
| ZYGNEMACEA | Haeckel | image |
| ZYGNEMACEAE 'Kützing' | | image |
| ZYGNEMACEAE | (subfamilies) | image |
| ZYGNEMACEAE | Balsamo | image |
| ZYGNEMACEAE | F. Cohn | image |
| ZYGNEMACEAE | Haechel | image |
| ZYGNEMACEAE | Haeckel | image |
| ZYGNEMACEAE | Kützing | image |
| ZYGNEMACEAE | Kützing | image |
| ZYGNEMACEAE | Naegeli | image |
| ZYGNEMACEAE | Rabenhorst | image |
| ZYGNEMALES | Bessey | image |
| ZYGNEMAPHYCEAE | Round | image |
| ZYGNEMATACEA | Fjerdingstad | image |
| ZYGNEMATACEAE | Engler | image |
| ZYGNEMATALES | G.M. Smith | image |
| ZYGNEMATEAE | Wille | image |
| ZYGNEMATIDEA | Walton | image |
| ZYGNEMATINEAE | Papenfuss | Calif. Acad. Sci., Centyry of Progress in the natural sciences 1853-1953: | 127 | 1955 |
| ZYGNEMATOIDEAE | Yamagishi | image |
| ZYGNEMATOPHYCEAE | C. van den Hoek, D.G. Mann, & H.M. Jahns | Algae: | 461 | 1995 |
| ZYGNEMATOPHYCEAE | D.G. Vodeničarov | image |
| ZYGNEMATOPHYCEAE | Round ex M.D. Guiry | Algae | 28: 5 | 2013 |
| ZYGNEMATOPHYTA | Whittaker & Margulis | image |
| ZYGNEMATOPHYTINA | D.G. Vodeničarov | image |