Additional new species of the lichen genus Pertusaria from China

Abstract

Pertusaria lacerocarpa Q. Ren (diagnostic characters for the species are a grey or ash-grey thallus corticolous; disciform apothecia with pink discs of which are slightly pruinose; a K– epihymenium; 1-spored asci with cylindric or ellipsoid spores, the walls of which are smooth and not trimmed; and the presence of hypothamnolic acid), P. montana Q. Ren (diagnostic characters for the species are a white or whitish-grey thallus muscicolous; disciform apothecia with pink discs of which are epruinose or slightly pruinose; a K– epihymenium; 1-spored asci with ellipsoid or cylindric spores, the walls of which are smooth and trimmed; and the presence of gyrophoric acid) and P. yulongensis Q. Ren (diagnostic characters for the species are a grey to black-grey thallus corticolous; verruciform apothecia with concave and black apices; a K+ violet epihymenium; 8-spored asci with dominantly biseriate spores, the walls of which are smooth and not trimmed; and the presence of fumarprotocetraric acid) from high mountains in China are described and illustrated as new to science.