Spongipellis sibirica, comb. nova (Basidiomycetes), and its affinities tothe polypore genera Tyromyces, Aurantioporus and Climacocystis

摘要

The species was recently described as Tyromyces sibiricus Penzina & Ryvarden. The new combination Spongipellis sibirica (Penzina & Ryvarden) Penzina & Kotir. is proposed, based on microscopic characteristics, e.g., thick-walled, cyanophilous spores and the structure of the contextual hyphae. The microscopical details are described and illustrated, and comparisons made with the similar-looking species Aurantioporus fissilis (Berk. & M. A. Curtis) H. Jahn, Climacocystis borealis (Fr.) Kotl. & Pouzar and Spongipellis spumea (Sowerby: Fr.) Pat. The affinities to the genus Tyromyces P. Karsten are briefly discussed; S. sibirica lacks the special, spiny encrustations, characteristic of the species of Tyromyces. The species was earlier known from the type locality only. In this paper it is reported from Siberia, Buryat Rep., Lake Baykal, Russian Far East, Kamchatka and China.