Freshwater algae of Southern Africa. IV. Some Micrasteriae from Rhodesia, including a new species

Abstract

Micrasterias ambadiensis (Gronblad & Scott) Thomasson, M. crux-melitensis (Ehrenberg) Hassall forma minor Turner, M. decemdentata (Nageli) Archer, M. pinnatifida (Kutzing) Ralfs var. incudiformis West & West, M. radiata Hassall var. brasiliensis Gronblad sensu lato, and M. tropica Nordstedt var. tropica are discussed. A new species, M. schweickerdtii Claassen, is described.