Dictyosphaerium Ehrenbergianum
''Dictyosphaerium'' is a genus of green algae, in the family Chlorellaceae. It occurs in freshwater habitats around the world and is planktonic. The name comes from the Greek roots ''diktyon'', meaning "net", and ''sphaira'', meaning "ball", referring to its morphology. Description ''Dictyosphaerium'' consists of irregular colonies of 4 to 64 cells in a common mucilaginous envelope 10–100 μm wide. Cells are roughly spherical to ellipsoidal, 1-10 μm in diameter, with one nucleus and a single pyrenoid-containing chloroplast. Cells are attached to the end of thin stalks; the stalks emerge from the center of the colony and continuously branch out. These stalks are formed from the remnants of the mother cell wall. ''Dictyosphaerium'' cells reproduce asexually by autospores. Two or four autospores are produced per sporangium; after release, the mother cell wall gelatinizes and develops into a thin strand, which are connected to the newly released cells. Taxonomy ''Dictyosphaerium ...
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