Agaricales of the Hawaiian Islands. 5. The genera Rhodocollybia and Gymnopus

Abstract

Four species of Collybia sensu lato are reported from the Hawaiian Islands: Rhodocollybia laulaha and Gymnopus menehune represent new species, while G. luxurians and G. subpruinosus are first reports. All four Hawaiian taxa are fully described, illustrated and compared with allied taxa. Marasmius subpruinosus, M. subcyathiformis and Clitocybe collybioides are formally transferred to Gymnopus. An artificial dichotomous key to Hawaiian Rhodocollybia and Gymnopus is presented.

Key Words:

• Collybia
• fungi
• systematics