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WoRMS taxon details
basis of record
Guiry, M.D. & Guiry, G.M. (2023). 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 editor or global species database
LSID urn:lsid:algaebase.org:taxname:97658 [details]From regional or thematic species database
Description Trichomes free-floating, aggregated in parallel in elongated, band-like colonies, up to 2 cm long and 3 mm wide, olive-green, flexuous. Trichomes straight or bent, cylindrical, slightly constricted at the cross-walls, isopolar, on both ends with long, cylindrical, terminal cells, at the ends cylindrical-rounded. Cells cylindrical to slightly barrel-shaped, ± isodiametric with olive-green protoplast and numer¬ous aerotopes, 4-12.1 x 4.4-8 μm; apical cells elongated and up to 24.3 gm long, without aerotopes, almost hyaline, usually with characteristic remains of cytoplasm in form of an irregular, lengthwise string. Heterocytes intercalary, solitary, usu¬ally 1 (up to 3) in a trichome, cylindrical, 10-18 x 5-8.5 μm. Akinetes intercalary, long cylindrical, distant from heterocytes, 40-220 x 6-10.8 μm. — Several varieties and forms were described, the taxonomic position of which is unclear (var. hercynium Kützing ex Forti 1907, var. haerdtlii Fjerdingstad 1966, f. incurvatum Černov 1950, f. macrosporum Fedorov 1970). The var. minus Nair probably does not belong to Aphanizomenon. [details]
Distribution Freshwater, in eutrophic reservoirs, light adapted (in water with high transparency and usually accompanied with large species of zooplankton), often in almost monospecific populations; common, but only in temperate zones of both hemispheres, all data from tropical regions are misinterpretations. [details]
Harmful effect Producer of the neurotoxin anatoxin-a and PSP [details]
Remark Heterocysts, nitrogen fixing filamentous form [details]From other sources
Environment Freshwater algae, N. India [details]
Published in AlgaeBase  (from synonym Aphanizomenon americanum E.G.Reinhard, 1896)
Published in AlgaeBase (from synonym Aphanizomenon cyaneum Ralfs ex Bornet & Flahault, 1888)
Published in AlgaeBase (from synonym Nostoc papyraceum S.F.Gray, 1821)
Published in AlgaeBase (from synonym Byssus flos-aquae Linnaeus, 1753)
Published in AlgaeBase (from synonym Conferva flosaquae (Linnaeus) Roth, 1806)
Published in AlgaeBase (from synonym Oscillatoria flosaquae (Linnaeus) C.Agardh, 1812)
Published in AlgaeBase (from synonym Nostoc flosaquae (Linnaeus) Lyngbye, 1819)
Published in AlgaeBase (from synonym Anabaena flosaquae (Linnaeus) Bory, 1822)
Published in AlgaeBase
Published in AlgaeBase (from synonym Sphaerozyga flosaquae (Linnaeus) Corda, 1836)
Published in AlgaeBase (from synonym Limnochlide flosaquae (Linnaeus) Kützing, 1843)
Published in AlgaeBase (from synonym Trichormus flosaquae (Linnaeus) Ralfs, 1850)
Published in AlgaeBase (from synonym Micraloa flosaquae (Linnaeus) Trevisan, 1845)
Published in AlgaeBase (from synonym Aphanizomenon holtsaticum Richter, 1891)
To Barcode of Life (1 barcode)
To Biodiversity Heritage Library (11 publications) (from synonym Anabaena flosaquae (Linnaeus) Bory, 1822)
To Biodiversity Heritage Library (8 publications)
To GenBank (16 nucleotides; 8147 proteins)
To GenBank (27 nucleotides; 7803 proteins) (from synonym Anabaena flosaquae (Linnaeus) Bory, 1822)
To PESI
To ITIS
From editor or global species database
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