Holmes provides a comprehensive treatment of the thirty-four species of Mikania recognized in the Greater Antillean Islands of Cuba, Jamaica, Hispaniola, and Puerto Rico. Included is a key to species and full synonymy with typifications, descriptions, specimen citations, and distribution maps for most species. Line illustrations of selected species, a list of numbered collections, and a discussion of taxonomic criteria, distribution, dispersal, interrelationships between species, and a list of excluded species are also provided.