Thrinax

For other uses, see Thrinax (disambiguation).
Thrinax
Thrinax radiata
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Monocots
(unranked): Commelinids
Order: Arecales
Family: Arecaceae
Subfamily: Coryphoideae
Tribe: Cryosophileae[1]
Genus: Thrinax
L.f. ex Sw.
Species

Thrinax ekmaniana
Thrinax excelsa
Thrinax parviflora
Thrinax radiata

Synonyms[2]

Porothrinax H.Wendl. ex Griseb.

Thrinax is a genus in the palm family, native to the wider Caribbean. It is closely related to the genera Coccothrinax, Hemithrinax and Zombia.[3] Flowers are small and bisexual, and are borne on small stalks.

Thrinax consists of four species. Three of them are single-island endemics - Thrinax ekmaniana is exclusively endemic to hills Mogotes de Jumagua, Cuba while Thrinax excelsa and Thrinax parviflora are endemic to Jamaica. The fourth species, Thrinax radiata, is more widespread - it is present in the Greater Antilles, the Bahamas, south Florida, Mexico and Central America.

Taxonomy






Coccothrinax



Hemithrinax



Leucothrinax




Zombia





Thrinax




Schippia



Cryosophila






Itaya




Chelyocarpus


Simplified phylogeny of the tribe Cryosophileae (except Trithrinax) based on the nuclear genes PKR and RPB2.[4]

In the first edition of Genera Palmarum (1987), Natalie Uhl and John Dransfield placed the genus Thrinax in the subfamily Coryphoideae, the tribe Corypheae and the subtribe Thrinacinae[5] Subsequent phylogenetic analysis showed that the Old World and New World members of the Thrinacinae are not closely related. As a consequence of this, Thrinax and related genera have been placed in their own tribe, Cryosophileae.[1] 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]

References

  1. 1 2 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.
  2. "Thrinax". World Checklist of Selected Plant Species. Royal Botanic Gardens, Kew. Retrieved 10 April 2010.
  3. Henderson, Andrew; Gloria Galeano; Rodrigo Bernal (1995). Field Guide to the Palms of the Americas. Princeton, New Jersey: Princeton University Press. ISBN 0-691-08537-4.
  4. Roncal, Julissa; Scott Zona; Carl E. Lewis (2008). "Molecular Phylogenetic Studies of Caribbean Palms (Arecaceae) and Their Relationships to Biogeography and Conservation". Botanical Review 74 (1): 78–102. doi:10.1007/s12229-008-9005-9.
  5. 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.
  6. Lewis, Carl E.; Scott Zona (2008). "Leucothrinax morrisii, a new name for a familiar Caribbean palm". Palms 52 (2): 84–88.
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