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Home / Cyanophyceae / Filaments / Unbranched / Untapered / Visible_sheath / Aulosira / |
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Name derivation: |
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From the Greek aulos , a pipe, tube, and seira , a chain |
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Classification: |
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Aulosira Kirchner ex Bornet and Flahault 1886; 10 of 19 species descriptions are currently accepted taxonomically (Guiry and Guiry 2013).Order Nostocales; Family Nostocaceae |
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Morphology: |
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Uniseriate trichomes enclosed in firm individual sheaths, occurring singly or sometimes in clusters, but never in mats. Occasional heterocysts occur at regular intervals along the trichome and are slightly larger than the vegetative cells. |
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Habitat: |
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Benthic in unpolluted lakes and ponds, among plants and sticks. Several species are important nitrogen fixers in rice fields. Especially abundant in the tropics. |
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References: |
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Guiry, M.D. and G.M. Guiry 2013. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 04 September 2013. |
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