Order Zygnematales
Family Closteriaceae Bessey
Genus Closterium Nitzsch ex Ralfs
- Closterium acerosum (Schrank) Ehrenberg ex Ralfs – planktonic, benthic; lakes; common (own data).
- Closterium aciculare West – benthic, planktonic; Vodoprovodnoye (Potable water) Lake, Verkhneye Ershovskoe lake; sporadic (own data).
- Closterium ehrenbergii Meneghini – planktonic, benthic; bogs, lakes; rare (own data).
- Closterium kuetzingii Brébisson – planktonic; bogs, lakes; common (own data).
- Closterium leiblenii Kützing – planktonic; bogs, lakes; common (own data).
- Closterium littorale Gay – benthic, planktonic; Verkhneye (Upper) Lake; rare (own data).
- Closterium lunula (O. F.Müller) Nitzsch – planktonic, benthic; bogs, lakes; common (own data).
- Closterium moniliferum (Bory) Ehrenberg – planktonic, benthic; freshwater; common (own data).
- Closterium parvulum Nägeli – benthic, planktonic; bogs, lakes; common (own data).
- Closterium setaceum Ehrenberg ex Ralfs – in marine plankton (Конопля, 1974).
- Closterium tumidulum Gay – benthic; bogs; rare (own data).
- Closterium venus Kützing – benthic, planktonic; bogs, lakes; common (own data).
Family Desmidiaceae Ralfs
Genus Actinotaenium (Nägeli) Teiling
- Actinotaenium cucurbita (Brébisson ex Ralfs) Teiling – planktonic; bogs, lakes; common (own data).
Genus Bambusina Kützing
- Bambusina borreri (Ralfs) Cleve – benthic, planktonic; bogs, lakes; common, sometimes dominant (own data: Bambusina brebissonii Kützing).
Genus Cosmarium Corda
- Cosmarium botrytis Meneghini – planktonic; freshwater supralittoral basins, pools, bogs, lakes; common (own data).
- Cosmarium brebissonii Meneghini – benthic; freshwater supralittoral basin; Rugozerskaya Bay; sporadic (own data).
- Cosmarium depressum (Nägeli) Lundell – planktonic; bogs, lakes; common (own data).
- Cosmarium granatum Brébisson – planktonic; freshwater supralittoral basins, bogs, lakes; common (own data).
- Cosmarium meneghinii Brébisson – planktonic; supralittoral basins, bogs, lakes; common (own data).
- Cosmarium nasutum Nordstedt – in sphagnums; Verkhneye (Upper) Lake; rare (own data).
- Cosmarium obtusatum (Schmidle) Schmidle – planktonic; supralittoral basins, bogs, lakes; common (own data).
- Cosmarium ochthodes Nordstedt – planktonic; freshwater; everywhere; common (own data).
- Cosmarium praegrande Lundelll – bogs, Verkhneye (Upper) Lake; rare (own data).
- Cosmarium pseudoretusiforme Grönblad – в выжимке из сфагновых мхов, sporadic, the bog near the Eremeevskaya bay.
- Cosmarium punctulatum Brébisson – planktonic; brooks, boggy pools (own data).
- Cosmarium pygmaeum Archer – planktonic; freshwater supralittoral basins, bogs, lakes; common (own data).
- Cosmarium pyramidatum Brébisson – planktonic; freshwater; common (own data).
- Cosmarium reniforme (Ralfs) Archer – planktonic; bogs; common (own data).
- Cosmarium striolatum (Nägeli) Archer – planktonic; Krugloe lake; sporadic (own data).
- Cosmarium subarctoum (Lagerheim) Raciborski – planktonic; Krugloe lake; sporadic (own data).
- Cosmarium turgidum Brébisson – planktonic; bogs; rare (own data).
- Cosmarium ungerianum (Nägeli) de Bary – planktonic; bogs; common (own data).
Genus Cosmocladium Brébisson
- Cosmocladium constrictum (Archer) Joschua – planktonic; Vodoprovodnoye (Potable water) Lake; rare (own data).
- Cosmocladium pulchellum Brébisson – planktonic, benthic; boggy pools; rare (own data).
- Cosmocladium pusillum L. Hilse – planktonic, rare, Vodoprovodnoye (Potable water) Lake.
- Cosmocladium saxonicum de Bary – planktonic; Vodoprovodnoye (Potable water) Lake; sporadic (own data).
Genus Desmidium C. Agardh
- Desmidium asymmetricum Grönblad – benthic; freshwater supralittoral basins; Probkina Gubka inlet; sporadic (own data).
- Desmidium grevillei (Kützing ex Ralfs) De Bary – planktonic, benthic; bogs, lakes; common (own data: Desmidium cylindricum Greville).
- Desmidium swartzii (C. Agardh) C. Agardh – benthic, planktonic; freshwater supralittoral basins, bogs, lakes; common (own data).
Genus Docidium Brébisson ex Ralfs
- Docidium baculum (Brébisson) Brébisson – benthic, planktonic; bogs, lakes; common, sometimes dominant (own data).
- Docidium undulatum Bailey – benthic, planktonic; bogs, lakes; common (own data).
Genus Euastrum Ehrenberg
- Euastrum bidentatum Nägeli – planktonic; bogs, lakes; common (own data).
- Euastrum divaricatum Lundell – planktonic, benthic; bogs, lakes; common (own data).
- Euastrum elegans (Brébisson in Meneghini) Kützing – planktonic, benthic; bogs, lakes; common (own data).
- Euastrum oblongum (Greville in Hooker) Ralfs – planktonic; bogs, lakes; rare (own data).
- Euastrum pectinatum (Brébisson) Brébisson – planktonic; Verkhneye (Upper) Lake; common; bogs; rare (own data).
- Euastrum verrucosum Ehrenberg – planktonic; bogs, lakes; common (own data).
Genus Haplotaenium T. Bando
- Haplotaenium minutum (Ralfs) Bando – benthic, planktonic; bogs, lakes; rare (own data: Pleurotaenium minutum (Ralfs) Hilse).
Genus Heimansia Coesel
- Heimansia pusilla (L. Hilse) Coesel – planktonic; Vodoprovodnoye (Potable water) Lake; rare (own data: Cosmocladium pusillum Hilse).
Genus Hyalotheca Ehrenberg
- Hyalotheca dissiliens (Smith) Brébisson – planktonic; bogs, lakes; common (own data).
- Hyalotheca mucosa Ralfs – benthic, planktonic; boggy pools, lakes; common (own data Hyalotheca mucosa (Dillwyn) Ehrenberg).
Genus Micrasterias C. Agardh
- Micrasterias crux-melitensis (Ehrenberg) Trevisan – planktonic; bogs, lakes; common (own data).
- Micrasterias papillifera Brébisson – planktonic; bogs, lakes; common (own data).
- Micrasterias rotata (Greville) Ralfs – planktonic; bogs near the WSBS power line swath; sporadic (own data).
- Micrasterias truncata Ralfs – planktonic; bogs, lakes; common (own data: Micrasterias truncata (Corda) Brébisson).
Genus Pleurotaenium Nägeli
- Pleurotaenium ehrenbergii (Ralfs) Delponte – bogs, lakes; common (own data).
- Pleurotaenium nodosum (Bailey) Lundell – benthic, planktonic; bogs, lakes; rare (own data).
Genus Sphaerozosma Corda ex Ralfs
- Sphaerozosma aubertianum West – benthic, planktonic; bogs, lakes; common (own data).
- Sphaerozosma commiscuum (Skuja) Palamar-Mordvintzeva [=Sphaerozosma excavatum Ralfs var. commiscuum Skuja] – benthic, sporadic, the bog near the Krugloe lake.
- Sphaerozosma filiforme (Ehrenberg) Bourrelly – planktonic; bogs, Verkhneye (Upper) Lake, Verkhneye Ershovskoe lake; rare (own data).
- Sphaerozosma vertebratum Brébisson ex Ralfs – benthic; a bog near the Verkhneye Ershovskoe lake; sporadic (own data).
Genus Spondylosium Brébisson ex Kützing
- Spondylosium planum (Wolle) W. West & G. S. West – planktonic; freshwater supralittoral basins, bogs, lakes; common (own data).
- Spondylosium pulchellum W. Archer – in sphagnums; the bog near the Verkhneye (Upper) Lake; rare (own data).
- Spondylosium pulchrum (Bailey) W. Archer. – planktonic, benthic; Nizhneye Ershovskoe lake, the bog near it; rare (own data).
Genus Staurastrum (Meyen) Ralfs
- Staurastrum gracile Ralfs ex Ralfs – benthic, planktonic; freshwater supralittoral basins, bogs, lakes; common (own data).
- Staurastrum furcatum Brébisson – freshwater supralittoral basins, bogs; rare (own data).
- Staurastrum inflexum Brébisson – freshwater, Verkhneye (Upper) Lake, Vodoprovodnoye (Potable water) Lake; planktonic (Бизина, 1998).
- Staurastrum lanceolatum W. Archer – planktonic; Verkhneye (Upper) Lake, Verkhneye Ershovskoe lake; rare (own data: Staurodesmus lanceolatus (Archer) Croasdale in Teiling).
- Staurastrum pelagicum W. West & G. S. West – planktonic; bogs, lakes; rare (own data).
- Staurastrum platycerum Joshua – freshwater, Verkhneye (Upper) Lake; planktonic (Бизина, 1998); . freshwater, supralittoral basins, bogs, lakes (own data).
- Staurastrum polymorphum Brébisson ex Ralfs – benthic, planktonic; freshwater supralittoral basins, bogs, lakes; common (own data).
- Staurastrum tetracerum Ralfs – planktonic; freshwater supralittoral basins, bogs, lakes; common (own data).
Genus Staurodesmus Teiling
- Staurodesmus brevispina (Brébisson ex Ralfs) Croasdale – planktonic, benthic; freshwater supralittoral basins, bogs, lakes; rare (own data).
- Staurodesmus connatus (P. Lundell) Thomasson – benthic; bogs; common (own data).
- Staurodesmus convergens (Ehrenberg ex Ralfs) S. Lilleroth – planktonic; bogs, lakes; common (own data).
- Staurodesmus cuspidatus (Brébisson ex Ralfs) Teiling – planktonic; bogs, lakes; common (own data).
- Staurodesmus dejectus (Brébisson ex Ralfs) Teiling var. apicularis (Brébisson) Teiling – benthic, planktonic; bogs, lakes; rare (own data).
- Staurodesmus dickiei (Ralfs) F. Lillieroth – planktonic, benthic; freshwater; rare (own data).
- Staurodesmus incus (Brébisson) Teiling – planktonic; bogs, lakes; common, sometimes dominant (own data).
- Staurodesmus indentatus (W. West & G. S. West) Teiling – planktonic; bogs, lakes; rare (own data).
- Staurodesmus subpygmaeus W. West – planktonic; bogs, lakes; rare (own data).
Genus Teilingia Bourrelly
- Teilingia excavata (Ralfs) Bourrelly – benthic; bogs, Verkhneye (Upper) Lake; rare (own data).
- Teilingia granulata (J. Roy & Bisset) Bourrelly – benthic, planktonic; bogs, lakes; common (own data).
- Teilingia spinulosa (Delp.) Bourrelly [=Sphaerozosma spinulosum Delp.] – planktonic, sporadic, Verkhneye (Upper) Lake, 4.08.2002.
- Teilingia wallichii (J. Jacobsen) Bourelly – planktonic; boggy freshwater supralittoral basin; Kastyan island; sporadic (own data: Teilingia wallichii var. wallichii).
Teilingia wallichii var. anglica (W. West & G. S. West) Kurt Först. – planktonic, benthic; freshwater supralittoral basins, bogs, lakes; rare (own data: Teilingia wallichii var. anglica (W. & G. S.West) Palamar-Mordvintzeva). Genus Tetmemorus Ralfs ex Ralfs
- Tetmemorus brebissonii Ralfs ex Ralfs – benthic; bogs; common (own data).
- Tetmemorus granulatus Brébisson ex Ralfs – benthic, planktonic; bogs, common; common (own data).
Genus Triploceras J. W. Bailey
- Triploceras gracile Bailey – benthic; bogs, lakes; rare (own data).
Genus Xanthidium C. G. Ehrenberg ex Ralfs
- Xanthidium aculeatum Ehrenberg – benthic, planktonic; bogs, lakes; common (own data).
- Xanthidium antilopaeum Kützing – benthic, planktonic; freshwater supralittoral basins, bogs, lakes; common (own data).
- Xanthidium armatum Rabenhorst ex Ralfs – benthic, planktonic; bogs, lakes; rare (own data).
- Xanthidium cristatum Brébisson ex Ralfs – benthic, planktonic; freshwater supralittoral basins, bogs, lakes; common (own data).
- Xanthidium fasciculatum Ehrenberg ex Ralfs – benthic, planktonic; bogs, lakes; common (own data).
Family Mesotaeniaceae Oltmanns
Genus Cylindrocystis Meneghini
- Cylindrocystis brebissonii Meneghini – planktonic; Vodoprovodnoye (Potable water) Lake; common (own data).
- Cylindrocystis crassa de Bary – planktonic; boggy freshwater supralittoral basin; sporadic (own data).
Genus Mesotaenium Nägeli
- Mesotaenium endlicherianum Nägeli – planktonic, benthic; bogs, lakes; common (own data).
- Mesotaenium kramstai Lemmermann – planktonic; Verkhneye (Upper) Lake; rare (own data).
- Mesotaenium macrococcum (Kützing) Roy & Bisset – benthic; Krugloe lake; rare (own data).
- Mesotaenium mirificum Archer – benthic; Krugloe lake; common (own data).
Genus Netrium (Nägeli) Itzigsohn & Rothe
- Netrium digitus (Ehrenberg) Itzigsohn & Rothe – planktonic, benthic; bogs, lakes; common (own data).
- Netrium interruptum (Brébisson) Lütkemüller – planktonic, benthic; bogs, Verkhneye (Upper) Lake; common (own data).
- Netrium oblongum (de Bary) Lütkemüller – bogs, lakes; common (own data).
Genus Roya W. & G. S.West
- Roya obtusa (Brébisson) W. & G. S.West – in sphagnum, bogs, Verkhneye (Upper) Lake, Krugloe lake; common (own data).
Family Peniaceae Haeckel
Genus Genicularia de Bary
- Genicularia spirotaenia de Bary – planktonic; bogs, lakes; common (own data).
Genus Gonatozygon de Bary
- Gonatozygon aculeatum Hastings – planktonic; bogs, lakes; rare (own data).
- Gonatozygon brebissonii de Bary – planktonic; bogs, lakes; common (own data).
Gonatozygon brebissonii var. kjellmanii (Wille) Raciborski – planktonic; bogs; rare (own data: Gonatozygon kjellmani Wille).
- Gonatozygon kinahanii (Archer) Rabenhorst – planktonic; Verkhneye (Upper) Lake, Vodoprovodnoye (Potable water) Lake; rare (own data).
- Gonatozygon monotaenium de Bary – planktonic; bogs, lakes; common (own data).
Genus Penium Brébisson
- Penium cylindrus Brébisson ex Ralfs – bogs, Vodoprovodnoye (Potable water) Lake ; common (own data).
- Penium polymorphum Perty – benthic, planktonic; bogs; common (own data).
Family Zygnemataceae Kützing
Genus Mougeotia C. Agardh
- Mougeotia genuflexa (Roth) C.Agardh – freshwater pool; sporadic (own data).
Genus Spirogyra Link
- Spirogyra calospora Cleve – benthic; freshwater pool; WSBS settlement; sporadic (own data).
- Spirogyra crassa (Kützing) Kützing – benthic; freshwater supralittoral basin; Kislaya inlet; sporadic (own data).
- Spirogyra decimina (O. F. Müller) Link – benthic; supralittoral basins, pools; rare (own data).
- Spirogyra grevilleana (Hassall) Kützing – benthic; Verkhneye (Upper) Lake; rare (own data).
- Spirogyra mirabilis (Hassall) Kützing – benthic; bogs, lakes; common (own data).
- Spirogyra tenuissima (Hassall) Kützing – benthic; Vodoprovodnoye (Potable water) Lake; common (own data).
- Spirogyra varians (Kützing) Kützing – benthic; freshwater supralittoral pools; Ermolinskaya Inlet; rare (own data).
Genus Zygnema C. Agardh 1817
- Zygogonium ericetorum Kützing – benthic; bogs; rare (own data: Zygnema ericetorum (Roth) Hansgirg).
- Zygnema pectinatum (Vaucher) C. Agardh – supralittoral basins, bogs, lakes; common (own data).
- Zygnema peliosporum Wittrock – planktonic; Verkhneye (Upper) Lake; rare (own data).
Family Zygnematophyceae incertae sedis
Genus Spirotaenia Brébisson ex Ralfs
- Spirotaenia bryophila (Brébisson) Lütkemüller – in sphagnum; bogs, lakes; rare (own data).
- Spirotaenia condensata Brébisson in Ralfs – planktonic, benthic; rare; in sphagnum; common; bogs, lakes Krugloe lake, Verkhneye (Upper) Lake (own data).
Spirotaenia truncata Archer – in sphagnum; bogs, lakes; common (own data).