Thrinax

Thrinax is a genus in the palm family, native to the Caribbean. It is closely related to the genera Coccothrinax, Hemithrinax and Zombia.[2] Flowers are small, bisexual and are borne on small stalks.

Thrinax
Thrinax radiata
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Monocots
Clade:	Commelinids
Order:	Arecales
Family:	Arecaceae
Subfamily:	Coryphoideae
Tribe:	Cryosophileae
Genus:	Thrinax L.f. ex Sw.
Species
Thrinax excelsa Thrinax parviflora Thrinax radiata
Synonyms[1]
Porothrinax H.Wendl. ex Griseb.

Taxonomy

Cryosophileae     Trithrinax         Itaya     Sabinaria         Chelyocarpus       Cryosophila         Schippia       Thrinax       Leucothrinax     Hemithrinax             Zombia     Coccothrinax

Simplified phylogeny of the Cryosophileae based on four nuclear genes and the matK plastid gene.[3]

In the first edition of Genera Palmarum (1987), Natalie Uhl and John Dransfield placed the genus Thrinax in subfamily Coryphoideae, tribe Corypheae and subtribe Thrinacinae.[4] Subsequent phylogenetic analyses showed that the Old World and New World members of Thrinacinae are not closely related and as a consequence, Thrinax and related genera were transferred into their own tribe, Cryosophileae.[5] In 2008, Leucothrinax morrisii (formerly T. morrisii) was split from Thrinax after phylogenetic studies showed that its inclusion in Thrinax would render that genus paraphyletic.[6]

Species

Thrinax consists of three species.

Image	Scientific name	Distribution
	Thrinax excelsa	Jamaica
	Thrinax parviflora	Jamaica
	Thrinax radiata	Greater Antilles, the Bahamas, south Florida, Mexico and Central America.

References

1. "Thrinax". World Checklist of Selected Plant Species. Royal Botanic Gardens, Kew. Retrieved 10 April 2010.
2. Henderson, Andrew; Gloria Galeano; Rodrigo Bernal (1995). Field Guide to the Palms of the Americas. Princeton, New Jersey: Princeton University Press. ISBN 978-0-691-08537-1.
3. Cano, Ángela; Bacon, Christine D.; Stauffer, Fred W.; Antonelli, Alexandre; Serrano‐Serrano, Martha L.; Perret, Mathieu (2018). "The roles of dispersal and mass extinction in shaping palm diversity across the Caribbean". Journal of Biogeography. 45 (6): 1432–1443. doi:10.1111/jbi.13225. ISSN 1365-2699.
4. Uhl, Natalie E.; John Dransfield (1987). Genera Palmarum: a classification of palms based on the work of Harold E. Moore Jr. Lawrence, Kansas: The L. H. Bailey Hortorium and the International Palm Society.
5. Dransfield, John; Natalie W. Uhl; Conny B. Asmussen; William J. Baker; Madeline M. Harley; Carl E. Lewis (2005). "A New Phylogenetic Classification of the Palm Family, Arecaceae". Kew Bulletin. 60 (4): 559–69. JSTOR 25070242.
6. Lewis, Carl E.; Scott Zona (2008). "Leucothrinax morrisii, a new name for a familiar Caribbean palm". Palms. 52 (2): 84–88.