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Genus: Dolichospermum | Cyanobacteria
Species: Dolichospermum circinalis, from Lopez Lake, CA. Order: Nostocales Family: Nostocaceae Description: Colonies grow in filamentous clumps of multi-cell chains. Cells are cylindrical or barrel shaped. The end cells are often much longer than mid-chain cells, and may be hyaline (having a glass-like appearance). Dolichospermum, formerly Anabaena, is one of four cyanobacteria genera that can produce toxins. Cell Size: 4-50um; varies with type of cell (vegetative smallest, akinetes largest) Distribution: Common worldwide. 110 species have been described. Both benthic and planktonic species can be found in North America. |
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