Two brown-spored species of the Lichen Genus Polyblastiopsis.

Abstract

Two taxa of pyrenocarpous lichens with brown, muriform spores, previously included in the genus Anthracothecium, are trans- ferred to the genus Polyblastiopsis. An emended description of Polyblastiopsis is given. A new species, Polyblastiopsis muelleri, is described and a new combination, Polyblastiopsis monosporum, is made.