Studies in Mycology No. 25

The genus Rhizopus Ehrenb. is revised, mainly using the strains maintained in the CBS culture collection. In the Rh. stolonifer group only two species are maintained, both with several varieties. The variable species Rh. oryzae is described. Numerous older taxa are treated as synonyms. Keys to the accepted taxa are provided



The complex around Rhizopus microsporus has been revised. Two species are recognized, viz. Rh. homothallicus and Rh. microsporus, the latter with three additional varieties: var. chinensis, var. oligosporus and var. rhizopodiformis.