Studies of two species of Phellinus in Western North America

The original description ofFomes occidentalisOverh, is validated by a Latin diagnosis. The new combinationsPhellinus occidentalis andPhellinus repandus are proposed. These fungi are known only from western North America. Morphological characters of basidiocarps and cultures of the two species are given with data on their distribution, substratum relationships, associated rot, and relation to similar species.