Portrait of the planktonic unicellular chlorellacean alga, Tetraedron trigonum(Nägeli) Hansgirg. The cell body is flat and triangular. The corners are drawn out as straight or slightly curved spines. There are multiple discoid plastids.Collected from a freshwater pond near Boise, Idaho.July 2005. DIC.
Portrait of the planktonic unicellular chlorellacean alga, Tetraedron trigonum (Nägeli) Hansgirg. The cell body is flat and triangular. The corners are drawn out as straight or slightly curved spines. There are multiple discoid plastids.Collected from a freshwater pond near Boise, Idaho.July 2005. DIC.
