Hemipogon trilobatus sp. nov. (Apocynaceae: Asclepiadoideae), a new microendemic from Chapada dos Veadeiros, Central Brazil

  • Hemipogon s. str. (Apocynaceae: Asclepiadoideae) currently consists of three species sharing an erect herbaceous habit, narrow leaves and corona-less flowers with urceolate, internally bearded corolla, that are mainly distributed in savannahs of the Cerrado biodiversity hotspot, South America. Here, we describe and illustrate a new species of Hemipogon, H. trilobatus Bitencourt & Rapini sp. nov., from an open savannah in Chapada dos Veadeiros, Central Brazil. Hemipogon trilobatus sp. nov. differs from the other species of the genus mainly by the presence of a reduced staminal corona with 3-lobed lobes, but also by opposite leaves and triangular anthers. Distribution and habitat data, as well as a key and a comparative table to distinguish the four species currently accepted in Hemipogon s. str., are provided. Based on criteria B2ab(i,ii,iii,iv) of the International Union for Conservation of Nature (IUCN), the species is provisionally assessed as Critically Endangered.

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Author:Cássia Bitencourt, Amanda P. B. Santos, Cristiane Snak, Alessandro Rapini
Parent Title (English):European journal of taxonomy : 729:1-10
Series (Serial Number):European journal of taxonomy : EJT (729:1-10)
Publisher:Muséum National dHistoire Naturelle
Place of publication:Paris
Document Type:Part of Periodical
Date of Publication (online):2020/12/11
Date of first Publication:2020/12/11
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2020/12/11
Tag:Cerrado; Metastelmatinae; Neotropics; savannah; taxonomy
Page Number:10
First Page:1
Last Page:10
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 59 Tiere (Zoologie) / 590 Tiere (Zoologie)
Sammlungen:Sammlung Biologie / Sondersammelgebiets-Volltexte
Licence (German):License LogoCreative Commons - Namensnennung 4.0