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The paper deals with little-known taxa of resupinate tinder fungi which were regarded till now in artificial genus Ceriporiopsis. These fungi have rather uniform superficial characteristics (light-colored prostrate annual basidiomata with tubular hymenophore and wide ellipsoid basidiospores), but differ each from others by thin features of key structures and plectological organization. A total of four taxonomical entities, ?eriporiopsis balaenae, C. consobrina, Fibuloporia cremea, and Porpomyces mucidus were analyzed highlighting their spore and hyphal wall features, microchemical reactions and features of plectenchymatic organization. It is shown that Ceriporiopsis balaenae is a synonym of C. consobrina, and this entity should be placed together with Fibuloporia cremea in independent genus, whereas Porpomyces mucidus has rather isolated position. A new genus, Niemelaea is created for Ceriporiopsis consobrina and Fibuloporia cremea, and three new combinations, Niemelaea consobrina, N. consobrina var. balaeneae, and N. cremea are proposed. The differences of new genus from the rest Ceriporiopsis units was presented. [ABSTRACT FROM AUTHOR]

Herein we present a checklist of aphyllophoroid fungi of the Pinega Reserve, in the territory of North European Russia. We present 328 species from 158 genera in the checklist. Each record includes data on distribution within key reserve localities, the host/substrate association and the frequency pattern. Most findings are documented by herbarium specimens. A predictive estimation of the Pinega Reserve aphyllophoroid diversity, based on Turing coefficient calculation, resulted in an interval of 360-370 species. [ABSTRACT FROM AUTHOR]

Observations of wood-rotting basidiomycetes in the boreal forests of the Eastern European North (Russia, Arkhangelsk Region) reveal some rare, but little known taiga species, namely Athelia alnicola, Byssocorticium atrovirens, Ceriporiopsis jelicii, Ginnsia viticola, Hypochnella violacea, Lopharia cinerascens, Phlebia deflectens, Ph. ochraceofulva, Postia persicina, Scytinostroma portentosum. The morphology, substrate preferences and the distribution of the species revealed are discussed. [ABSTRACT FROM AUTHOR]