Mycologia
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DOI: 10.3852/mycologia.99.4.622
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Mycologia, 99(4), 2007, pp. 622-627.
© 2007 by The Mycological Society of America

Tylopilus orsonianus sp. nov. and Tylopilus eximius from Guyana


Tara D. Fulgenzi
Terry W. Henkel 1

     Department of Biology, Humboldt State University, Arcata, California 95521–8299

Roy E. Halling

     Institute of Systematic Botany, New York Botanical Garden, Bronx, New York 10458–5126

Tylopilus orsonianus sp. nov. and Tylopilus eximius (Boletaceae, Basidiomycota) are described for the first time from the Pakaraima Mountains of Guyana. Both boletes occur in forests dominated by ectomycorrhizal trees in the genus Dicymbe (Caesalpiniaceae). A key to Tylopilus species distinguishes those known to occur in Guyana.

Key words: Boletaceae, Caesalpiniaceae, ectomycorrhizae, Guiana Shield, neotropics, taxonomy

1 Corresponding author. E-mail: twh5{at}humboldt.edu






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Copyright © 2007 by The Mycological Society of America.