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Abstract
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.
This research was made possible by grants from the National Geographic Society’s Committee for Research and Exploration, the Smithsonian Institution’s Biological Diversity of the Guianas Program, the Linnaean Society of London and the Humboldt State University Foundation to TWH and by an Explorer’s Club Exploration and Field Research Grant to MCA. Mimi Chin, Christopher Andrew, Leonard Williams, Valentino Joseph, Francino Edmond and Luciano Edmond provided field assistance in Guyana. MCA also thanks DE Aime, Clydecia McClure and Jordan Mayor for field assistance in 2004. We are grateful for the help of Christian Feuillet who provided Latin translations and two anonymous reviewers who provided valuable comments. Research permits were granted by the Guyana Environmental Protection Agency. This paper is No. 159 in the Smithsonian Institution’s Biological Diversity of the Guiana Shield ProgramPUBLICation series.
