ABSTRACT
DNA renaturation experiments gave evidence to conclude that Rhizopus arrhizus, R. oryzae, R. delemar, Amylomyces rouxii, R. delemar var. minimus, R. delemar var. multiplicisporus, R. arrhizus var. delemar, R. chungkuoensis var. isofermentarius, and R. javanicus var. kawasakiensis can be accommodated in three taxa, namely, R. arrhizus var. arrhizus, R. arrhizus var. rouxii, and R. arrhizus var. delemar.
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