Ceraceomyces atlanticus (Amylocorticiales, Basidiomycota), a new species from the Atlantic Rain Forest, Brazil

Ceraceomyces is characterized by resupinate basidioma with pellicular aspect, thin hymenial layer and loose subiculum, smooth or merulioid hymenial surface, monomitic hyphal system with clamped hyphae, narrowly clavate basidia, and subglobose to narrowly ovate to ellipsoid basidiospores. Five species are reported for South America, four of which are known from Brazil, and Ceraceomyces atlanticus is here introduced as a new species. Macro- and micro-descriptions, line drawings and a LSU phylogenetic tree for Amylocorticiales are provided.