Combination of Mascagnia and Triopterys (Malpighiaceae)

Abstract

The most recent phylogenetic analysis of Malpighiaceae shows the small Caribbean genus Triopterys to be nested within the larger continental genus Mascagnia. The morphology of Triopterys is consistent with that of Mascagnia, and the samara-shape for which Triopterys was named is not found in all its species, so the two genera are combined under the name Mascagnia. A key to the triopteroid species of Mascagnia is provided, and each species is treated with its correct name, full synonymy, and a diagnostic description. The new names or combinations M. adamsii, M. lucida, and M. paniculata are proposed, and lectotypes are designated for the names Malpighia paniculata, Mascagnia buchii, T. ovata, T. ovata f. acuminata, T. ovata f. obtusa, T. ovata var. domingensis, T. parvifolia, T. rigida f. nana, T. rigida f. oblonga, and T. rigida var. ovatifolia.