IMA Fungus 6(2): 297-317, doi: 10.5598/imafungus.2015.06.02.03
New sequestrate fungi from Guyana: Jimtrappea guyanensis gen. sp. nov., Castellanea pakaraimophila gen. sp. nov., and Costatisporus cyanescens gen. sp. nov. (Boletaceae, Boletales)
expand article infoTerry W Henkel‡, Kevin R. Amses§, Todd F. Elliott|, Keisuke Obase, M. Catherine Aime#, Terry W. Henkel§
‡ Humboldt State University, Arcata, United States of America§ Humboldt State University, Department of Biological Sciences, Arcata| Warren Wilson College, Department of Integrative Studies, Asheville¶ University of Florida, Department of Plant Pathology, Gainesville# Purdue University, Department of Botany & Plant Pathology, West Lafayette
© Terry Henkel, Kevin Amses, Todd Elliott, Keisuke Obase, M. Aime, Terry Henkel.
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY-NC 4.0), which permits to copy and distribute the article for non-commercial purposes, provided that the article is not altered or modified and the original author and source are credited.
Citation: Henkel T, Amses KR, Elliott TF, Obase K, Aime MC, Henkel TW (2015) New sequestrate fungi from Guyana: Jimtrappea guyanensis gen. sp. nov., Castellanea pakaraimophila gen. sp. nov., and Costatisporus cyanescens gen. sp. nov. (Boletaceae, Boletales). IMA Fungus 6(2): 297-317. https://doi.org/10.5598/imafungus.2015.06.02.03
Open Access
Abstract
Jimtrappea guyanensis gen. sp. nov., Castellanea pakaraimophila gen. sp. nov., and Costatisporus cyanescens gen. sp. nov. are described as new to science. These sequestrate, hypogeous fungi were collected in Guyana under closed canopy tropical forests in association with ectomycorrhizal (ECM) host tree genera Dicymbe (Fabaceae subfam. Caesalpinioideae), Aldina (Fabaceae subfam. Papilionoideae), and Pakaraimaea (Dipterocarpaceae). Molecular data place these fungi in Boletaceae (Boletales, Agaricomycetes, Basidiomycota) and inform their relationships to other known epigeous and sequestrate taxa within that family. Macro- and micromorphological characters, habitat, and multi-locus DNA sequence data are provided for each new taxon. Unique morphological features and a molecular phylogenetic analysis of 185 taxa across the order Boletales justify the recognition of the three new genera.
Keywords
Boletineae, Caesalpinioideae, Dipterocarpaceae, ectomycorrhizal fungi, gasteroid fungi, Guiana Shield