Home / Cyanophyceae / Filaments / Unbranched / Untapered / Heterocysts / Visible_Sheath / Wollea
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Name derivation:
Classification:
Wollea Bornet and Flahault 1886; 5 of 9 species descriptions are currently accepted taxonomically (Guiry and Guiry 2013). Order Nostocales Family Nostocaceae
Morphology:
Photosynthetic parallel untapered trichomes embedded in a common mucilage sheath. Individual trichomes have no sheath. Intercalary heterocysts are surrounded on both sides by short series of akinetes.
Similar genera:
The non-heterocyte-bearing Microcoleus also has bundles of parallel trichomes embedded in a common sheath.
Habitat:
Stagnant freshwater, attached to a substrate or planktonic.
References:
Bornet, É. And C. Flahault 1886 '1888'. Revision des Nostocacées hétérocystées contenues dans les principaux herbiers de France. Annales des Sciences Naturelles, Botanique, Septième Série 7: 177-262. Guiry, M.D. and G.M. Guiry 2013. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 06 August 2013.