Three New Species of Paepalanthus sect. Diphyomene (Eriocaulaceae) from Minas Gerais, Brazil

Three new species of Paepalanthus Mart. sect. Diphyomene Ruhland (Eriocaulaceae) from Minas Gerais (Brazil) are described and illustrated. Paepalanthus arcuatus Trovo, defined by its curved leaves, is known only from the Serra do Cipo National Park and shares morphological characters with P. decussus Korn. Paepalanthus linearis Trovo, defined by its linear leaves, is known exclusively from Itacambira and resembles P. polycladus Silveira. Paepalanthus sericiscapus Trovo, defined by its sericeous scapes, is known only from the type specimens collected in the Serra da Canastra and resembles P. arcuatus. All the species are known only from their type localities and are assigned a preliminary conservation status of Critically Endangered. Morphological variation, habitat, geographic distribution, and conservation status are noted.