Can anyone help me identify this species of Staurastrum?

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Rehman Ullah Khan

Staurastrum elongatum

Pavel Svoboda

I don´t think that it is St. elongatum (just compare your picture and species at: http://www.desmids.nl/maand/english/staurastrum_elongatum.html - e.g. the shape of semicells, thickness of the spines etc.). It looks like reproducing St. pingue (e.g. http://www.digicodes.info/staurastrum_pingue.html).

Maria Verdugo Althöfer

Thanks, i was thincking also in reproducing!!

Geddada Mohan Narasimha Rao

It is a micro algal form belongs to Chlorophyce and genus is Staurastrum and i am not sure it may be elongatum, after intensive examination only we came to conclusion.