SNOW ALGAE OF THE WINDMILL ISLANDS, CONTINENTAL ANTARCTICA - 3 - CHLOROMONAS POLYPTERA (VOLVOCALES, CHLOROPHYTA)

A new name, Chloromonas hohamii, is proposed to accommodate a common N orth American snow alga previously incorrectly referred to as Chloromo nas polyptera. Chloromonas hohamii differs in having the motile vegeta tive cells with a cup-shaped chloroplast opening in the anterior end o f the cell, shorter, narrower, ellipsoidal to elongate to somewhat fus iform, sexual spores with non-spiralled wall flanges, shorter and narr ower daughter cells derived from the spores, and it grows in snow of s ignificantly lower pH and conductivity.