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

Authors: Petersen, Ronald Country: United States of America DOI: 10.3897/mycokeys.107.122634 Published: Jan. 1, 2024 Source: MycoKeys OpenAlex: View in OpenAlex

Collection: Pensoft Publishers

Keywords: Gymnopus · Topics: Mycorrhizal Fungi and Plant Interactions, Plant Pathogens and Fungal Diseases, Plant Diversity and Evolution

Two small gymnopoid fungi from the southern Appalachian Mountains and Massachusetts, Collybiopsis complicata 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).

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