Sirogonium Sticticum
''Sirogonium'' is a genus of filamentous charophyte green algae of the order Zygnematales. It is found in freshwater areas on all continents but Antarctica. ''Spirogyra'' measures approximately 32–115 μm The micrometre ( international spelling as used by the International Bureau of Weights and Measures; SI symbol: μm) or micrometer (American spelling), also commonly known as a micron, is a unit of length in the International System of Unit ... in width. Each cell contains 2–10 chloroplasts in a ribbon, in contrast to the closely related genus '' Spirogyra'', which has chloroplasts in a coil. Species The following species are currently accepted: * '' Sirogonium calosporum'' Zhu * '' Sirogonium ceylanicum'' Wittrock * '' Sirogonium decoratum'' Prescott * '' Sirogonium denticulatum'' W.J.Zhu * '' Sirogonium floridanum'' (Transeau) G.M.Smith * '' Sirogonium fuscosporum'' Woodhead & Tweed * '' Sirogonium guangzhouense'' Zhu * '' Sirogonium hui'' (L.C.Li) Transeau ...
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