103 polypores described by P. Ch. Hennings have been examined based on the available types. Nineteen species are accepted, 63 species are reduced to synonymy, the types of 19 species could not be found, while two names are illegitimate. Two new combinations are proposed: Tyromyces aquosus (Henn.) Ryvarden and Diplomitoporus daedaleiformis (Henn.) Ryvarden. These two species are provided with descriptions, while published recent descriptions are referred to for the other 17 accepted species.
Ryvarden L. (2012): Type studies in Polyporaceae 27. Species described by P. Ch. Hennings. – Czech Mycology 64(1): 13–21.
