Revisiting Paepalanthus subsect. Polycladus (Eriocaulaceae): re-circumscription, nomenclatural notes and description of a noteworthy new species

• Marcelo Trovó ^[1] ; Livia Echternacht ^[2] ; Paulo Takeo Sano ^[3] ; Fabiane Nepomuceno da Costa ^[4]
  1. [1] Universidade Federal do Rio de Janeiro

     Universidade Federal do Rio de Janeiro

     Brasil

     
  2. [2] Universidade Federal de Ouro Preto

     Universidade Federal de Ouro Preto

     Brasil

     
  3. [3] Universidade de São Paulo

     Universidade de São Paulo

     Brasil

     
  4. [4] Universidade Federal dos Vales do Jequitinhonha e Mucuri

     Universidade Federal dos Vales do Jequitinhonha e Mucuri

     Brasil

     

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• Localización: Folia geobotánica: A journal of plant ecology and systematics, ISSN-e 1874-9348, ISSN 1211-9520, Vol. 54, Nº 3-4, 2019, págs. 307-318
• Idioma: inglés
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• Resumen

  • Paepalanthus subsect. Polycladus was proposed based on a few and incomplete specimens of P. polygonus. In this manuscript we re-circumscribe the group, include the remarkable new species Paepalanthus lychnophorellus and exclude P. grao-mogolensis, providing also a complete description of Paepalanthus polygonus. One new synonym is proposed (P. spiralifolius = P. polygonus) and one lectotypification is designated (P. polygonus). Paepalanthus subsect. Polycladus is compared with morphologically similar taxa. An identification key, illustrations, photographs, distribution maps, and comments on the distribution, habitat preferences, conservation and taxonomy are provided for the two species of the subsection.