Resumo

MORALES, J. Francisco. Studies on the neotropical Apocynaceae XVIII: Two new species of Mandevilla (Apocynoideae, Mesechiteae) from Brazil. Darwiniana [online]. 2005, vol.43, n.1-4, pp.84-89. ISSN 0011-6793.

Two new species of Mandevilla (Apocynoideae, Mesechiteae) subgenus Exothostemon, endemic to Brasil, are described. Mandevilla abortiva is somewhat related with M. huberi, M. obtusifolia and M. pachyphylla, and their relationships are discussed. Mandevilla clandestina has been confused with M. scabra, but differs by its smaller flowers. Full descriptions, illustrations and specimens examined are given for both taxa.

Palavras-chave : Apocynaceae; Apocynoideae; Mesechiteae; Mandevilla; Brazil.

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