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WoRMS taxon details

Phormidium uncinatum Gomont ex Gomont, 1892

661044  (urn:lsid:marinespecies.org:taxname:661044)

accepted
Species
marine, brackish, fresh, terrestrial
Gomont, M. (1892 (1893)). Monographie des Oscillariées (Nostocacées Homocystées). Deuxième partie. - Lyngbyées. <em>Annales des Sciences Naturelles, Botanique.</em> 7(16): 91-264. [details]  OpenAccess publication 
Description Thallus dark green to brownish black, widely expanded, adherent, thin, firm or floating and (sometimes) fasciculate,...  
Description Thallus dark green to brownish black, widely expanded, adherent, thin, firm or floating and (sometimes) fasciculate, attached by the base, thick. Filaments straight or slightly bent. Sheaths mucilaginous, firm or diffluent. Trichomes blue-green or dirty green, (4) 5.5-9 (9.5) μm wide, not constricted at the often granulated cross-walls, briefly attenuated at the ends and hooked or feebly coiled, rapidly motile, with anticlockwise rotation and strong oscillation. Cells 1/2-1/3x as long as wide, rarely up to subquadrate, 2-6 μm long. Apical cells capitate, mostly with obtuse, rarely rounded-conical calyptra. [details]

Distribution Occurrence: Freshwater, periphytic on rocks, stones, wood, hydrophytes and other substrates in flowing and stagnant waters...  
Distribution Occurrence: Freshwater, periphytic on rocks, stones, wood, hydrophytes and other substrates in flowing and stagnant waters (rarely on moist soils, in brackish swamps and in thermal springs?); distributed worldwide, possibly cosmopolitan.  [details]
Guiry, M.D. & Guiry, G.M. (2024). AlgaeBase. World-wide electronic publication, National University of Ireland, Galway (taxonomic information republished from AlgaeBase with permission of M.D. Guiry). Phormidium uncinatum Gomont ex Gomont, 1892. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=661044 on 2024-06-16
Date
action
by
2012-09-05 09:21:21Z
created
2015-03-31 11:11:42Z
changed
2015-06-26 12:00:51Z
changed

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original description Gomont, M. (1892 (1893)). Monographie des Oscillariées (Nostocacées Homocystées). Deuxième partie. - Lyngbyées. <em>Annales des Sciences Naturelles, Botanique.</em> 7(16): 91-264. [details]  OpenAccess publication 

context source (ERMS) Gkelis, S.; Ourailidis, I.; Panou, M.; Pappas, N. (2016). Cyanobacteria of Greece: an annotated checklist. <em>Biodiversity Data Journal.</em> 4: e10084., available online at https://doi.org/10.3897/bdj.4.e10084 [details]   

context source (RAS) Australian Antarctic Data Centre. , available online at https://data.aad.gov.au/aadc/biodiversity/ [details]   

basis of record Guiry, M.D. & Guiry, G.M. (2024). AlgaeBase. <em>World-wide electronic publication, National University of Ireland, Galway.</em> searched on YYYY-MM-DD., available online at http://www.algaebase.org [details]   
 
 Present  Present in aphia/obis/gbif/idigbio   Inaccurate  Introduced: alien  Containing type locality 
   

From regional or thematic species database
Description Thallus dark green to brownish black, widely expanded, adherent, thin, firm or floating and (sometimes) fasciculate, attached by the base, thick. Filaments straight or slightly bent. Sheaths mucilaginous, firm or diffluent. Trichomes blue-green or dirty green, (4) 5.5-9 (9.5) μm wide, not constricted at the often granulated cross-walls, briefly attenuated at the ends and hooked or feebly coiled, rapidly motile, with anticlockwise rotation and strong oscillation. Cells 1/2-1/3x as long as wide, rarely up to subquadrate, 2-6 μm long. Apical cells capitate, mostly with obtuse, rarely rounded-conical calyptra. [details]

Distribution Occurrence: Freshwater, periphytic on rocks, stones, wood, hydrophytes and other substrates in flowing and stagnant waters (rarely on moist soils, in brackish swamps and in thermal springs?); distributed worldwide, possibly cosmopolitan.  [details]

Harmful effect A strain of this benthic species was isolated from a drinking water reservoir in Pernambuco State, Brazil and found to produce the saxitoxin variant GTX1 (Borges et al. 2015). Cells were identified by both morphological and molecular methods [details]

Remark Gliding motility [details]

From other sources
Environment In brackish swamps, Akyab; in soils Lahore, Shembaganur, Red soil, Vandalur near Madras; freshwater algae, N. India. [details]

Environment Rupes cataractarum, canales molendarios, rivulos rapide fluentes, etiam lacunas aqua pluviali repletas per Norvegiam, Sueciam, Belgiam, Galliam occidentalem et meridionalem, Germaniam, Hungariam, Carpathicos montes, lstriam, Africam borealem, etiam ditiones Connecticut et Massachusetts Americae foederatae. [details]
    Definitions

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