Fulvifomes wrightii (Hymenochaetales), a new species related to F. robiniae from Argentina and Paraguay

Abstract

Morphological revision and phylogenetic analysis based on nITS and nLSU of specimens previously considered to be a species related to Fulvifomes robiniae from South America revealed a new species of Fulvifomes, i.e. Fulvifomes wrightii. It grows on Libidibia paraguariensis, a Fabaceae distributed in the Chaco Region. The new species is characterised by a perennial, ungulate basidioma with a rimose pileal surface, 6–7 pores per mm, a homogenous context, indistinct stratified tubes and abundant crystals in tube trama and hymenia. Illustrations, taxonomic analyses and a key to the Fulvifomes species recorded from the Americas is provided.