New taxa of Hymenochaete (Agaricomycetes, Hymenochaetales) with a note on H. caucasica

Five new species of Hymenochaete, H. cystidiata, H. fuscotestacea, H. leppii, H. patellaris, and H. spinulosetosa, and a new subspecies, H. muroiana subsp. africana, are described. Hymenochaete caucasica is redescribed and accepted as a distinct species and not a synonym of H. minuscula.