"Actinomyces umbrinus" Sveshnikova in Gauze et al. 1957 Dataset NCBI Taxonomy Classification phylum Actinomycetota class Actinomycetes order Kitasatosporales family Streptomycetaceae genus Streptomyces species Streptomyces umbrinus Name Homonyms Actinomyces umbrinus "Actinomyces umbrinus" Sveshnikova in Gauze et al. 1957