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REDISCOVERY AND TAXONOMIC REASSESSMENT OF FOUR ANGIOSPERMS IN THE SAVANNAS OF JALAPÃO, CENTRAL BRAZIL

Published online by Cambridge University Press:  01 December 2017

G. M. Antar ,
M. F. Santos  and
P. T. Sano
G. M. Antar*
Affiliation:
Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, Rua do Matão 277, São Paulo – SP, 05508-090, Brazil.
M. F. Santos
Affiliation:
Departamento de Biologia, Campus Sorocaba, Universidade Federal de São Carlos, Rodovia João Leme dos Santos (SP 264), km 110, Sorocaba – SP, 18052–780, Brazil.
P. T. Sano
Affiliation:
Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, Rua do Matão 277, São Paulo – SP, 05508-090, Brazil.
*
E-mail for correspondence: guilherme.antar@gmail.com
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Abstract

Globally, the Cerrado is the most diverse savanna in terms of plant species, as well as one of the most threatened as the result of human impact; it is therefore considered a priority area for conservation. Some areas of the Cerrado have still not been subject to botanical collections and detailed studies, the Jalapão region being one of these. We describe four recently rediscovered species previously known only from type specimens collected at least 160 years ago: Hyptis caduca Epling (Lamiaceae), Duguetia rotundifolia R.E.Fr. (Annonaceae), Diospyros ovalis Hiern (Ebenaceae) and Rhabdodendron gardnerianum (Benth.) Sandwith (Rhabdodendraceae). Comments on their ecology, conservation status and occurrence are provided, together with a distribution map. New morphological data have been recorded, and all species are considered to be under some degree of threat. These rediscoveries highlight the importance of further fieldwork in poorly sampled and highly biodiverse regions such as Jalapão and neighbouring areas, as well as the urgent need for conservation of the highly threatened Cerrado biome.

Keywords

CerradoconservationDiospyrosDuguetiaHyptisnew recordsRhabdodendronTocantins
Type
Articles
Information
Edinburgh Journal of Botany , Volume 75 , Issue 1 , March 2018 , pp. 55 - 71
Copyright
Copyright © Trustees of the Royal Botanic Garden Edinburgh (2017) 

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