View source for Order Fragilariales

===Family Fragilariaceae Greville===
Genus ''Asterionella'' Hassall
*''Asterionella formosa'' Hassall – freshwater; periphyton (Dressler, 2003).
*''Asterionella gracillima'' (Hantzsch) Heiberg — planktonic, common, lakes
*''Asterionella glacialis'' Castracane — marine, planktonic (Rat'kova, 2000).
Genus ''Catacombаs'' D. M. Williams & Round
*''Catacombаs gaillonii'' (Bory de Saint-Vincent) D. M. Williams & Round – marine, littoral; single finding (Бондарчук, 1970: Synedra gaillonii (Bory de Saint-Vincent) Ehrenberg).
Genus ''Ceratoneis'' Ehrenberg
*''Ceratoneis arcus'' Kützing – marine, littoral, diluted areas; sporadic (Бондарчук, 1970). Marine, mouth area of the Nilma River; planktonic; dominant (Лихачёва, 2003).
''C. arcus'' var. ''lineari'' Holmboe – single finding in fouling (Бондарчук, 1970).
Genus ''Ctenophora'' (A. Grunow) D. M. Williams & Round
*''Ctenophora pulchella'' (Ralfs ex Kützing) D. M. Williams & Round var. ''pulchella'' – marine, littoral; benthic, periphyton; rare, everywhere (Бондарчук, 1970: Synedra pulchella Ralfs ex Kützing; ''S. pulchella'' var. ''lanceolata'' O'Meara – very rare, together with type variation).
Genus ''Diatoma'' Bory de Saint-Vincent
*''Diatoma elongatum'' (Lyngbye) C. Agardh – marine, littoral, mouths of brooks; sporadic (Бондарчук, 1970).
*''Diatoma hyemalе'' (Roth) Heiberg – marine, littoral, mouths of brooks; sporadic (Бондарчук, 1970).
*''Diatoma tenuе'' C. A. Agardh – freshwater; periphyton (Dressler, 2003).
*''Diatoma vulgar''e Bory de Saint-Vincent — planktonic,benthic, common, sublittoral, freshwater
Genus ''Fragilaria'' Lyngbye
*''Fragilaria capucina'' Desmazières var. ''capucina'' – marine, littoral; benthic, periphyton; rare (Бондарчук, 1970). Freshwater; periphyton (Dressler, 2003: ''F. capucina'' var. ''mesolepta ''Rabenhorst and ''F. capucina'' var. ''vaucheriae'' (Kützing) Lange-Bertalot).
*''Fragilaria'' cf. ''capucina'' var. ''gracilis'' (Østrup) Hudsted – freshwater; periphyton (Dressler, 2003).
*''Fragilaria construens'' (Ehrenberg) Grunow – marine, littoral; often in significantly diluted areas (Бондарчук, 1970). Freshwater, Verkhneye (Upper) Lake, Vodoprovodnoye (Potable water) Lake; planktonic (Бизина, 1998). Freshwater; periphyton (Dressler, 2003: as F. construens (Ehrenberg) Hudsted f. construens and F. construens f. venter (Ehrenberg) Grunow).
*''Fragilaria crotonensis'' Kitton – marine, mouth area of the Nilma River; planktonic; dominant (Лихачёва, 2003). Freshwater; periphyton (Dressler, 2003).
*''Fragilaria hyalina'' (Kützing) Grunow ex Van Heurck – marine, littoral; benthic, periphyton; in some areas abundant (Бондарчук, 1970).
*''Fragilaria islandica'' Grunow ex Van Heurck – marine; planktonic (Конопля, 1974). Marine; planktonic; dominant (Возжинская, 1975).
*''Fragilaria parasitica'' var. ''subconstricta ''Grunow in Van Heurck – freshwater; periphyton (Dressler, 2003).
*''Fragilaria striatula'' Lyngbye – marine; littoral; in some areas abundant, particularly in fouling of filamentous macrophytes (Бондарчук, 1970).
*''Fragilaria'' сf. ''tenera'' (W.Smith) Lange-Bertalot – freshwater; periphyton (Dressler, 2003).
*''Fragilaria ulna'' (Nitzsch) Lange-Bertalot – freshwater; periphyton (Dressler, 2003: as F. ulna var. ulna s.l. and F. ulna var. angustissima).
Genus ''Fragilariforma'' D. M. Williams & F. E. Round
*''Fragilariforma virescens'' (Ralfs) D.M. Williams & Round – marine; littoral; benthic, periphyton; everywhere; not abundant (Бондарчук, 1970: as Fragilaria virescens Ralfs).
Genus ''Hannaea'' R. Patrick in R. Patrick & C. W. Reimer
*''Hannaea arcus'' (Ehrenberg) Patrick — marine, planktonic (Rat'kova, 2000).
Genus ''Martyana'' F. E. Round in F. E. Round et al.
*''Martyana atomus'' (Héribaud-Joseph) Round, 1990 - marine. Found in semi-isolated from the sea coastal stratified lake Kislo-Sladkoe (Mindolina et al., 2023).
*''Martyana martyi'' (Héribaud) F.E. Round – marine, littoral; benthic, periphyton; rare, everywhere (Бондарчук, 1970: as Opephora martyi Héribaud).
Genus ''Meridion'' C. Agardh
*''Meridion circulare'' (Greville) C. Agardh – marine, littoral; sporadic in mouths of brooks (Бондарчук, 1970).
Genus ''Opephora'' P. Petit
*''Opephora marina'' (Gregory) Petit var. ''marina'' – marine, littoral; benthic, periphyton; rare, everywhere (Бондарчук, 1970; ''O. marina'' var. ''minuta'' – together with type variation, but less often). Marine, littoral; benthic (Сабурова, 1995).
Genus ''Pseudostaurosira'' D. M. Williams & F. E. Round
*''Pseudostaurosira brevistriata'' (Grunow) D.M. Williams – marine, littoral; diluted areas; benthic, periphyton; often (Бондарчук, 1970: as ''Fragilaria brevistriata'' Grunow). Freshwater; periphyton (Dressler, 2003: F. brevistriata).
*''Pseudostaurosira cf. elliptica'' - freshwater. Found in anaerobic zone of semi-isolated coastal stratified lake Kislo-Sladkoe (Mindolina et al., 2023).
Genus ''Staurosirella'' D. M. Williams & F. E. Round
*''Staurosirella pinnata'' (Ehrenberg) D.M. Williams & Round – freshwater; periphyton (Dressler, 2003: as Fragilaria pinnata Ehrenberg var. рinnata). Also found in anaerobic zone of semi-isolated coastal stratified lake Kislo-Sladkoe (Mindolina et al., 2023).
Genus ''Synedra'' Ehrenberg
*''Synedra camtschatica'' Grunow var. ''camtschatica'' – marine, littoral, sublittoral; periphyton; often (Бондарчук, 1970: ''S. kamtschatica'' Grun.; ''S. camtschatica'' var. ''finnmarchica'' Cleve & Grunow – together with type variation, less often).
*''Synedra crystallina'' (C. Agardh) Kützing – marine, littoral; rare (Бондарчук, 1970).
*''Synedra famelica'' Kützing – marine, littoral, significantly diluted areas; sporadic (Бондарчук, 1970).
*''Synedra fulgens'' (Greville) W. Smith – marine, littoral, sublittoral; periphyton; rare (Бондарчук, 1970).
*''Synedra tabulata'' (C. Agardh) Kützing var. tabulata – marine, littoral, sublittoral; periphyton; everywhere, dominant (Бондарчук, 1970, 1971, 1980б). Marine; planktonic; spring (Конопля, 1971). Marine; planktonic (Конопля, 1974).
''S. tabulata'' var. ''acuminata'' Grunow – together with type variation, less often (Бондарчук, 1970).
''S. tabulata'' var. ''affinis'' Rz. – littoral; rare (Бондарчук, 1970).
''S. tabulata'' var. ''grandis'' Mereschk. – littoral; in some areas often (Бондарчук, 1970).
''S. tabulata'' var. ''fasciculata'' (Kützing) Grunow – together with type variation, less often (Бондарчук, 1970).
''S. tabulata'' var. ''obtusa'' Rant. – together with type variation, rare (Бондарчук, 1970).
''S. tabulata'' var. ''parva'' (Kützing) Grunow – often, in some areas abundant (Бондарчук, 1970).
*''Synedra tenera'' W. Smith – marine, littoral, significantly diluted areas; rare (Бондарчук, 1970).
*''Synedra ulna'' (Nitzsch) Ehrenberg var. ulna – marine, littoral; rare (Бондарчук, 1970). Marine; mouth area of the Nilma River; planktonic; dominant (Лихачёва, 2003).
''S. ulna'' var. ''aequalis'' (Kützing) Hustedt – sporadic (Бондарчук, 1970).
''S. ulna'' var. ''danica'' (Kützing) Grunov – together with type variation; rare (Бондарчук, 1970).
Genus ''Tabularia'' (F. T. Kützing) D. M. Williams & F. E. Round
*''Tabularia investiens'' (W. Smith) D. M. Williams & Round – marine, littoral, sublittoral; periphyton; everywhere, not abundant (Бондарчук, 1970: as Synedra investiens W. Smith).
Genus ''Ulnaria'' F. T. Kützing
*''Ulnaria acus'' (Kützing) M. Aboal – marine, littoral, diluted areas; sporadic (Бондарчук, 1970: as ''Synedra acus'' Kützing).

[[rus: Порядок Fragilariales]]