Abstract
A taxonomical study of the genus Rhizopus was made by examining the morphological, cultural and physiological characteristics of 449 culture strains from 29 culture collections. As a result, a new system of classification of the genus Rhizopus was presented which distinguished 13 species and one new variety.
The strains examined were deposited in the following organization in 1959: IAM Culture Collection, Institute of Applied Microbiology, University of Tokyo, Bunkyo-ku, Tokyo, Japan.
