Taxonomic studies in the Miconieae (Melastomataceae). X. Revision of the species of the Miconia crotonifolia complex

The systematics of Miconia angustilamina, M. crotonifolia, M. macrocarpa and M. umbellata, species traditionally considered within either Clidemia and Heterotrichum (M. angustilamina, M. umbellata) or Tetrazygia and Tetrazygiopsis (M. crotonifolia, M. macrocarpa) are investigated. These species, which are considered to be closely related and constitute the M. crotonifolia complex, are taxonomically revised. The circumscription of M. umbellata is expanded to include Heterotrichum cymosum (often considered a Puerto Rican endemic) and that of M. macrocarpa is expanded to include Tetrazygia tuerckheimii, which is recognized as an ecologically differentiated subspecies. The species of the M. crotonifolia complex are restricted to the Greater Antilles and are the most diverse on Hispaniola.