A new record for Guyana reveals the disjunct distribution of Tragia cearensis Pax & K. Hoffm. (Euphorbiaceae) 

By

Patrício Freire De Sá Cordeiro, Wesley
Athiê De Souza, Sarah Maria
Marques Torres, Alicia
Laurênio De Melo, André
Sales, Margareth

Type

Article

Date of Publication

2020-11-23

Original Publication

Check list : journal of species lists and distribution

Volume

16

Series / Issue

Issue: 6

Pages

1603--1608

Subjects

Plukenetieae , savanna , taxonomy , Tragiinae

Contributed by

Pensoft Publishers

Language

English

Published by

[São Paulo, Brazil] Luís Felipe Toledo 2005-

Identifiers

DOI: https://doi.org/10.15560/16.6.1603

 

Abstract

Tragia cearensis, which was known only from northeastern Brazil in caatinga (dryland) vegetation, has its distribution expanded after the discovery of its presence in the savanna of Guyana, providing the first evidence of a disjunct distribution between those dry areas among Tragia species. Tragia cearensis could be recognized by having long, capitate, glandular trichomes at the apex of the petiole, the absence of glandular trichomes on the inflorescences and apices of the branches, and verrucose seeds. A detailed description, additional taxonomic notes, illustrations, and a distribution map are presented.