Two new species of <i>Pyrenula</i> with a red or orange thallus from Vale do Catimbau National Park, Pernambuco, Brazil

Abstract

Abstract The new species Pyrenula reginae and P. rubromamillana are described from NE Brazil. Both have a conspicuous red or orange thallus, an inspersed hamathecium and relatively small ascospores, but they differ clearly in colour and ascoma organization.