Two new species of Peperomia Ruiz & Pavon (Piperaceae) from southeastern Brazil and four new synonymies

Of the 173 species of Peperomia in Brazil, 108 are endemic. Two new species of Peperomia are described from the state of Espírito Santo: P. aggregata and Peperomia spiritus-sancti, the latter one also occurring in Minas Gerais. Both species show characteristics of Peperomia subg. Leptorhynchum (Dahlst.) Trel. ex Samain. Illustrations and morphological comparisons are presented. Four new synonymies are proposed.