%0 Journal Article
%T Two new species of Euphorbia sect. Nummulariopsis (Euphorbiaceae) from South America
%A Carrillo-Reyes
%A Pablo
%A Steinmann
%A Victor W.
%J Anales del Jard¨ªn Bot¨¢nico de Madrid
%D 2011
%I Consejo Superior de Investigaciones Cient¨ªficas
%X Two new species of sect. Nummulariopsis, Euphorbia guaraniorum and E. cordeiroae, are described and illustrated. Euphorbia guaraniorum appears to be related to E. portulacoides and is distinguished by its densely arranged ensiform leaves. It is known only from the Yacyret¨¢ and Ybycui Islands in southern Paraguay. Euphorbia cordeiroae, occurs in the state of Goi¨¢s, Brazil, and is similar to E. stenophylla, from which it differs in its higher stature and very narrow and loosely arranged leaves. Dos nuevas especies de la secci¨®n Nummulariopsis, Euphorbia guaraniorum y E. cordeiroae son descritas e ilustradas. Euphorbia guaraniorum parece estar relacionada con E. portulacoides, de la que se distingue por sus hojas ensiformes densamente agrupadas y se conoce solo de las islas Yacyret¨¢ e Ybycui, en el sur de Paraguay; E. cordeiroae, conocida s¨®lo del estado de Goi¨¢s, Brasil, se compara con E. stenophylla, de la que se diferencia por ser una planta m¨¢s alta y por sus hojas extremadamente delgadas y con un arreglo laxo.
%K Brazil
%K Euphorbia cordeiroae
%K E. guaraniorum
%K Paraguay
%K Portulacastrum
%K Brasil
%K Euphorbia cordeiroae
%K E. guaraniorum
%K Paraguay
%K Portulacastrum
%U http://rjb.revistas.csic.es/index.php/rjb/article/view/365/359