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Two new species of Collybiopsis (Agaricales, Omphalotaceae) from Eastern North America

Ronald H Petersen¹, Karen W Hughes¹

¹Ecology & Evolutionary Biology, University of Tennessee, Knoxville, TN 37996-1100, USA University of Tennessee Knoxville United States of America.

|July 31, 2024

Abstract:

Two small gymnopoid fungi from the southern Appalachian Mountains and Massachusetts, Collybiopsiscomplicata sp. nov. and C.prolapsis sp. nov., are identified and described. A new generic nrITS-LSU phylogeny of Collybiopsis places C.complicata and C.prolapsis in a small clade together with C.minor, and an unknown taxon from Arkansas. This clade adds to the growing circumscription of Collybiopsis (= Marasmiellus).

Keywords:

Gymnopus Marasmiaceae Omphalotaceae new species phylogeny taxonomy

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