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Type: Article
Published: 2018-04-13
Page range: 176–182
Abstract views: 25
PDF downloaded: 1

Paepalanthus thomasianus, a new species of Paepalanthus subg. Platycaulon (Eriocaulaceae) from São Paulo State, Brazil

Departamento de Ciências da Vida, Universidade Regional do Noroeste do Estado do Rio Grande do Sul, Ijuí, Rio Grande do Sul, Brazil.
Laboratório de Sistemática Vegetal, Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil.
Everlasting plants endemism IUCN Red List taxonomic novelty Monocots

Abstract

We describe and illustrate the new species Paepalanthus thomasianus (P. subg. Platycaulon, Eriocaulaceae) from São Paulo, Brazil, and compare it with other morphologically similar species. P. thomasianus is characterized mainly by its leaf indumentum, composed by long multicellular trichomes. Undulations formed by the vascular bundles in the leaf surface and the wide ratio between the leaf base and the middle region of the leaf are also useful to recognize the species. The morphological variation, habitat, geographic distribution, and conservation status of this new species are discussed.