Tracy Commock, Philip E. Rose, Kanchi N. Gandhi, Keron C. St. E. Campbell, Kenneth J. Wurdack, Javier Francisco-Ortega, Brett Jestrow
Harvard Papers in Botany 22 (2), 137-140, (31 December 2017) https://doi.org/10.3100/hpib.v22iss2.2017.n8
KEYWORDS: Caribbean Islands, tropical islands, nomenclature, taxonomy, systematics
Recent systematic treatments for Jamaica have shown that the island is home to seven endemic genera of seed-plants [viz., Dendrocousinsia (Euphorbiaceae), Jacmaia (Asteraceae), Odontocline (Asteraceae), Portlandia (Rubiaceae), Salpixantha (Acanthaceae), Tetrasiphon (Celastraceae), and Zemisia (Asteraceae)]. These taxa account for over 23 species, with three genera (Jacmaia, Tetrasiphon, and Zemisia) being monotypic. Further study of these taxa revealed that five names need typification: (1) Tetrasiphon jamaicensis Urb.; (2) Senecio fadyenii Griseb.; (3) S. fadyenii var. dolichanthus Krug & Urb.; (4) S. hollickii Britton ex Greenm. [all the three Senecio taxa included in Odontocline]; and (5) Gymnanthes elliptica Sw. Lectotypes for these names are designated here. Furthermore, G. elliptica is transferred to Dendrocousinsia and the new combination is made here: D. elliptica (Sw.) Commock & K. Wurdack.