THE FOURTEEN SPECIES OF ZIZIPHUS INCLUDING SARCOMPHALUS (RHAMNACEAE) INDIGENOUS TO THE WEST INDIES

Taxonomic treatment is presented for the 14 species of Ziziphus P. Mill. (Rhamnaceae: Dicotyledoneae) recognized in the West Indies, with key, synonymies, and statements of distribution. New combinations include Z. crenata (Sarcomphalus crenaius Urb.), Z. microdictya (S. microdictyus Urb. & Ekm.), Z. acutifolia (S. acutifolius Griseb.), Z. bidens (S. bidens Urb.), Z. obovata (S. obovatus Urb.), Z. havanensis var. bullata (S. bullatus Urb.), and Z. taylori (S. taylori Britt.). New names include Z. urbani (S. parvifolius Urb. & Ekm.) and Z. grisebachiana (S. divaricatus Griseb.). The available evidence of evolutionary relationships is assessed.