Cells single. In top view generally trigonal or tri-radiate (or more than triradiate). Hollow processes with terminal spines. Pronounced isthmus separates semicells. Another large, heterogeneous genus in need of revision/splitting.
Most taxa are plankters in oligotrophic lakes, sometimes in great abundance.
Staurastrum sexangulare var. supernumerarium |
Staurastrum paradoxum var. cingulum |
Staurastrum gladiosum |
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