Coprinopsis neocinerea sp. nov., an ammonia fungus from Southern Vietnam.

Coprinopsis neocinerea sp. nov. (Basidiomycota, Agaricales , Psathyrellaceae), is a new Coprinoid ammonia fungus from broadleaf mixed forest in Vietnam. In macro- and micromorphology, this species is similar to C. cinerea , but differs in having upheaved and humpbacked abaxial side shape of basidiospores. Phylogenetic analysis with nuclear ribosomal internal transcribed spacer (ITS) data also supports this new taxon. • One new ammonia fungus Coprinopsis neocinerea from Vietnam is described. • Phylogenetic analysis supported species in genus Coprinopsis subsection Lanatuli. • This new species is distinct by having an upheaved and humpacked basidiospores. [ABSTRACT FROM AUTHOR]