Abstract—In an account of 13 taxa (12 species and one variety) of Dalechampia occurring in Madagascar, ten species were lectotypified, two were synonymized, and one species was reestablished. Information about typifications as well as maps of distribution for
each species are provided herein. Illustrations and a key for identifying species of Dalechampia in Madagascar are also provided.
A synopsis of the Dalechampia from Northeastern Brazil is presented here, with discussions of their diagnostic features. The study was based on the analysis of herbarium material (including historical collections and types), specimens collected in the field, and bibliographic documentation. Twenty-eight species distributed among five sections were recognized, 19 of them endemic to Brazil. Most of the species are found in Caatinga and Atlantic Forest vegetation. A key for species identifications is provided, together with illustrations, and information on their geographic distributions and conservation statuses.
Abstract—A new species of Dalechampia from southeastern Brazil, belonging to Dalechampia sect. Dioscoreifoliae, is described and illustrated here. Dalechampia margarethiae is a twining vine occurring exclusively in Espírito
Santo state. Its pseudanthia are similar to those of D. peckoltiana and D. pentaphylla, but D. margarethiae differs in a set of important characters, including having cylindrical, down-curved style tips, staminate flowers at anthesis having unreflexed sepals with
stamens born on unelongated columns, whitish floral resin, and simple, entire, cordate leaves.
Resumo Os limites interespecíficos de diversos táxons de Dalechampia foram analisados e esclarecidos. Foram reconhecidas 14 espécies para o gênero, dentre as quais dez são endêmicas do Brasil. A maioria apresenta ampla distribuição, sendo registradas em diversas sub-regiões do estado de Pernambuco, ocorrendo principalmente na Zona da Mata e no Agreste, em ambientes ensolarados. Os caracteres mais utilizados para a diferenciação das espécies foram o fomato da folha, da coluna estilar e das estípulas bracteais, além do número de sépalas pistiladas. Neste trabalho, são fornecidos chave para identificação, descrições, comentários sobre afinidades morfológicas, distribuição geográfica das espécies e ilustrações.
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