Reclassification of Actinomyces humiferus (Gledhill and Casida) as Cellulomonas humilata nom. corrig., comb. nov.

The placement of Actinomyces humiferus within the genus Actinomyces has alw ays been controversial. A. humiferus differs from typical members of the ge nus both phenotypically and in possessing a relatively high DNA G+C content . Comparative 16S rRNA gene sequencing has shown that A. humiferus is relat ed only distantly to other species of the genus Actinomyces and is, in fact . a member of the genus Cellulomonas. On the basis of phylogenetic evidence , it is proposed that A. humiferus be reclassified in the genus Cellulomona s as Cellulomonas humilata nom. corrig.. comb. nov.