Two remarkable additions to the Pannariaceous flora of South America

Two new species am described: Erioderma glabrum ( from the Antillean region and Ecuador) and Parmeliella conopleoides (from Brazil, Venezuela, and Cos ta Rica). Both species are unusual in their respective genera. Erioderma gl abrum is the only glabrous species in the genus Erioderma, with no obvious close relations, while P. conopleoides is a species of the Parmeliella pann osa group and the first species in this genes known to have gymnidia.