Snow algae of the Windmill Islands, continental Antarctica 3. Chloromonas polyptera (Volvocales, Chlorophyta)

Abstract

A new name, Chloromonas hohamii, is proposed to accommodate a common North American snow alga previously incorrectly referred to as Chloromonas polyptera. Chloromonas hohamii differs in having the motile vegetative cells with a cup-shaped chloroplast opening in the anterior end of the cell, shorter, narrower, ellipsoidal to elongate to somewhat fusiform, sexual spores with non-spiralled wall flanges, shorter and narrower daughter cells derived from the spores, and it grows in snow of significantly lower pH and conductivity.