Parvoplaca nigroblastidiata, a new corticolous lichen (Teloschistaceae) in Europe, Turkey and Alaska
In a recent phylogenetic analysis of the family Teloschistaceae based on three molecular markers, 31 genera were newly described or resurrected. One of these genera was Parvoplaca, currently including four species in which anthraquinones may be present or absent in the apothecia. We have re-analyzed the genus and propose one new species, P. nigroblastidiata Arup, Halc & Vondrak, and one new co