A taxonomic revision of the genus Tamonea (Verbenaceae)

Abstract

A taxonomic revision of the genus Tamonea is provided. Tamonea is a small genus of Verbenaceae, placed in the tribe Casselieae. It is represented by six species, distributed in tropical and temperate America, from Mexico and the Caribbean in the north, to Brazil, Paraguay and Bolivia in the south. Four new combinations are introduced: Tamonea curassavica var. australis, T. curassavica var. cardenasii, T. curassavica var. parvifolia and T. curassavica var. yucatanensis; a new synonym is proposed for T. curassavica var. curassavica. The species Tamonea juncea is lectotypified. Detailed morphological descriptions are given for each taxon, in addition to a key for their identification, illustrations, actualized synonymy, distribution and specimens lists, as well as discussion about the relationship between closely related taxa. © 2008 The Linnean Society of London.