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Mycologia. 2016 Jan-Feb;108(1):157-73. doi: 10.3852/15-075. Epub 2015 Oct 21.

New Boletaceae taxa from Guyana: Binderoboletus segoi gen. and sp. nov., Guyanaporus albipodus gen. and sp. nov., Singerocomus rubriflavus gen. and sp. nov., and a new combination for Xerocomus inundabilis.

Author information

Department of Biological Sciences, Humboldt State University, Arcata, California 95521
Department of Plant Pathology, University of Florida, Gainesville, Florida 32611.
Department of Agriculture, Faculty of Agriculture and Forestry, University of Guyana, Georgetown, Guyana.
University Program in Genetics & Genomics, Duke University, Durham, North Carolina 27708.
Department of Plant, Soil and Microbial Sciences, Michigan State University, East Lansing, Michigan 48824.
Department of Botany and Plant Pathology, Purdue University, West Lafayette, Indiana 47907.

Erratum in


Binderoboletus segoi gen. and sp. nov., Guyanaporus albipodus gen. and sp. nov. and Singerocomus rubriflavus gen. and sp. nov. (Boletaceae, Boletales, Basidiomycota) are described from the Pakaraima Mountains and adjacent lowlands of Guyana. Xerocomus inundabilis, originally described from the central Brazilian Amazon and based solely on the type collection, is redescribed from numerous collections from Guyana and transferred into Singerocomus. These boletes occur in Neotropical forests dominated by ectomycorrhizal trees in the genera Dicymbe (Fabaceae subfam. Caesalpinioideae), Aldina (Fabaceae subfam. Papilionoideae) and Pakaraimaea (Dipterocarpaceae). Three of the species were repeatedly found in a multiyear sporocarp survey in Dicymbe corymbosa-monodominant forest. Macromorphological, micromorphological, habitat and multilocus DNA sequence data are provided for each species. A molecular phylogenetic analysis based on a large taxon set across the Boletaceae justifies erection of the new genera.


Agaricomycetes; Boletineae; Caesalpinioideae; Dipterocarpaceae; Guiana Shield; ectomycorrhizal fungi

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