ABSTRACT: The taxonomic position of two species currently assigned to the Hyaloscyphaceae, Dasyscyphus involucratus and Trichopeziza myricae is reassessed, two new Dermateaceous genera Involucroscypha and Obscurodiscus are erected to accommodate them and the corresponding new combinations Involucroscypha involucrata and Obscurodiscus myricae are proposed.

KEYWORDS: taxonomy, Hyaloscyphaceae. Dermateaceae, new genera

NOMENCLATURAL NOVELTIES:
Involucroscypha Raitv., p. 46
Involucroscypha involucrata (B. Erikss.) Raitv., p. 47
Obscurodiscus Raitv., p. 49
Obscurodiscus myricae (P. Karst.) Raitv., p. 49