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Genus: Staurastrum| Chlorophyte, desmid Species: Staurastrum johnsonii, collected at Pinto Lake, California Order: Desmidiales Family: Desmidiaceae Description: A member of the placoderm group of desmids, cells are composed of two halves called semicells. Between the semicells are deep median incisions. Cells have 3-part symmetry and often have elaborate ornamentation. |
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