Eysenhardtia officinalis (Leguminosae, Papilionoideae), a new species from Mexico, is described and illustrated. This species appears similar to E. polystachya (Ortega) Sargent and E. texana Scheele, but differs in the number and morphology of the leaflets, the longer inflorescences, the…

Six new species of Leptoglossus Guerin from Brazil, Costa Rica, Mexico, Peru, and Venezuela are described. Diagnostic taxonomic characters of antennal segments, legs, male genital capsules, and dorsal views of some species are illustrated. Most of the species are placed…

The type species of Acolhua is discussed. The specimens considered to represent the type species Acolhua championi Distant by Slater & Brailovsky (1986) are shown to represent a previously undescribed species described as A. barrerai new species. The actual type…

A new monotypic arboreal and dioecious genus, endemic to Mexico, is described and illustrated: Heteroflorum, within the Leguminosae, Caesalpinioideae, Caesalpinieae, Peltophorum species group, including the new species H. sclerocarpum from the Balsas River basin and the Mexican coastal plains of…

Recent studies of the Asclepiadoideae (Apocynaceae) in southern and western Mexico have revealed a new species here described and illustrated as Gonolobus spiranthus JuarezJaimes, W. D. Stevens & Lozada-Perez. This species is distinguished by having a tubular corolla more than…

Six new species of Bernardia from Mexico are described and illustrated. Species are distinguished by a combination of characters such as habit, leaf shape and size, indumentum, venation pattern, gland position, length of staminate inflorescence, number of bracts, number of…

The taxonomy of the New World species of the genus Trichadenotecnum is revised. A total of 44 species, including 29 new species, were treated. These species are classified into 12 monophyletic species groups, eight of them newly proposed here. Two…

A new and narrowly endemic species from the Tehuantepec District of Oaxaca, Ipomoea tehuantepecensis L. Torres Colín, R. Torres Colín, M.P. Ramírez & J.A. McDonald, is described and illustrated. The new species belongs to a primitive assemblage of hairyseeded lianas…

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