The Entolomataceae of the Pakaraima Mountains of Guyana IV: new species of Calliderma, Paraeccilia and Trichopilus.

This paper is the fourth in a series documenting the Entolomataceae taxa (Agaricales, Basidiomycota) from Guyana. Six new species in three genera are described-Calliderma caeruleosplendens, Paraeccilia unicolorata, Trichopilus tibiiformis, T. fasciculatus, T. vividus, and T. luteolamellatus-occurring primarily in mixed tropical rainforests of the Potaro River Basin in the Pakaraima Mountains. Macromorphological, micromorphological and habitat data are provided for each. None of these genera had been reported from Guyana.