A New Species of Dysmorphococcus (Phacotaceae,Volvocales) and Its Life Cycle

This paper deals with the morphology and life cycle of a new species ofDysmorphococcus oblatus Yu et Wei (Phacotaceae, Volvocales) from Africa. The alga seemsto be morphologically rather distinct from the other members (lorica, protoplast and numberof pyrenoid). Moreover, a comparison is made of overall morphological and reproductivecharacteristics of the present taxon with the other 8 known species of this genus. The culturalexperiment of the life cycle of this alga reveals certain attributes unrecorded for early described species of this genus. The alga is homothallic, and heterogametic and sexual reproduc-tion produces 32-64 male gametes and 2 female gametes.