Bibliographic Detail
Claassen, M.I., 1976
Reference:
Claassen, M.I. (1976). Freshwater algae of southern Africa: 3. Pleurotaenium breve Raciborski var. engleri (Schmidle) Krieger and Penium gonatozygiforme Claassen sp. nov. from Transvaal. Journal of South African Botany 42: 377-382.