Roystonea dunlapiana
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Roystonea dunlapiana, commonly known as yagua or cabiche, is a species of palm which is native to Mexico, Nicaragua and Honduras.[1] It is the only species in the genus Roystonea which is absent from the insular Caribbean.
Description
Roystonea dunlapiana is a large palm which reaches heights of Script error: No such module "convert".. Stems are grey-white and about Script error: No such module "convert". in diameter. The upper portion of the stem is encircled by leaf sheaths, forming a green portion known as the crownshaft which is about Script error: No such module "convert". long. Individuals have about 15 leaves with Script error: No such module "convert". rachises; the leaves hang well horizontal. The Script error: No such module "convert". inflorescences bear white male flowers with purplish anthers; the female flowers are undescribed. Fruit are Script error: No such module "convert". long and Script error: No such module "convert". wide, and are purplish black when ripe.[2]
Taxonomy
Roystonea is placed in the subfamily Arecoideae and the tribe Roystoneeae.[3] The placement Roystonea within the Arecoideae is uncertain; a phylogeny based on plastid DNA failed to resolve the position of the genus within the Arecoideae.[4] As of 2008, there appear to be no molecular phylogenetic studies of Roystonea[3] and the relationship between R. dunlapiana and the rest of the genus is uncertain.
The species was first described by American botanist Paul H. Allen in 1952. Allen's description of R. dunlapiana, together with his description of R. regia var. hondurensis (now synonymised with typical R. regia) was the first record of Roystonea species native to Central America.[2]
Common names
The species is commonly known as yagua or cabiche in Honduras.[2]
Distribution
Roystonea dunlapiana is native to southern Mexico (Chiapas, Quintana Roo, Tabasco, Veracruz), Honduras and Nicaragua.[1] In his monograph of the genus, Scott Zona reported that it is "likely to occur in Belize". It grows in estuaries and coastal swamps. It is the only species in the genus Roystonea which is absent from the insular Caribbean.[2]
References
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