Hymenochaete cruenta (syn.: H. mougeotii) has been considered a widely spread species in Eurasia and Australasia inhabiting both coniferous and angiospermic trees or bushes. A similar species, H. murashkinskyi was described by A. Pilát from Southern Siberia and later found also in the Russian Far East and China on Rhododendron spp. Study of herbarium specimens demonstrated that there are two closely related species with partly overlapping areas of distribution: H. cruenta on Abies (and other conifers?) in Eurasia, and H. sphaericola (syn.: H. murashkinskyi) on Rhododendron, Quercus and some other angiospermic trees in East, South-East and South Asia and Australasia.
Parmasto E. (2001): Hymenochaete cruenta and H. sphaericola, two sibling species of Hymenochaetales (Hymenomycetes, Basidiomycota). – Czech Mycology 52(4): 307–315.
