A new species and a new record of Pyxine (Physciaceae) with norstictic acid from São Paulo State, Brazil

Abstract

In the course of a study of Pyxine species in São Paulo State, Brazil, Pyxine jolyana was recognized as a new species. It has norstictic acid in the medulla, a rare feature in South American species. Also, another species with norstictic acid, P. fallax, is recorded for the first time from the Neotropics. A world key to the Pyxine species that produce norstictic acid is presented.