Crepidotus crocophyllus found in Costa Rica and Mexico and revision of related species in subsection Fulvifibrillosi.

The study of Crepidotus specimens collected in Costa Rica and Mexico revealed that C. crocophyllus occurs in the tropical and subtropical forests of both countries. Type specimens of seven species related to C.

Calvatia sporocristata sp. nov. (Gasteromycetes) from Costa Rica.

Calvatia sporocristata, Gasteromycetes, is described and illustrated as a new species. Its taxonomic characters are discussed and compared with other closely related species of the genus. Few studies have been carried out on tropical Gasteromycetes.