Actinomycetes in the desert of Kuwait.

The distribution of actinomycetes in two desert localities in Kuwait was investigated. The genus Streptomyces was dominant in the two studied localities. Attempts to classify this genus in groups and species were made. Species producing straight or wavy spore chains were dominating in the two localities. Species producing oval spores and smooth spore surfaces were widely distributed. The most frequent is the cinereus series. Streptomyces aburaviensis and S. wedmorensis were more frequent in Cyperus locality, while S. calvus was the dominant one in Rhanterium locality. Each locality was characterized by different groups and species.