Roystonea dunlapiana: Difference between revisions
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|species = '''''R. dunlapiana''''' |
|species = '''''R. dunlapiana''''' |
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|binomial = ''Roystonea dunlapiana'' |
|binomial = ''Roystonea dunlapiana'' |
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|binomial_authority = [[P.H.Allen]] |
|binomial_authority = [[Paul H. Allen|P.H.Allen]] |
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'''''Roystonea dunlapiana''''' |
'''''Roystonea dunlapiana''''', commonly known as '''yagua''' or '''cabiche''' is a species of [[Arecaceae|palm]] which is native to southern [[Mexico]] and [[Central America]]. It is the only species in the genus ''[[Roystonea]]'' which is absent from the insular [[Caribbean]]. |
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==Description== |
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The species is found in [[estuary|estuaries]] and coastal [[swamp]]s in southern Mexico, [[Honduras]] and [[Nicaragua]], and is reported to be "likely to occur in Belize".<ref name = Zona/> |
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''Roystonea dunlapiana'' is a large palm which reaches heights of {{convert|20|m|0}}. Stems are grey-white and about {{convert|38|cm}} in diameter. The upper portion of the stem is encircled by leaf sheaths, forming a green portion known as the [[crownshaft]] which is about {{convert|2|m|ft|abbr=on}} long. Individuals have about 15 leaves with {{convert|4|m|ft|adj=on}} [[rachis]]es; the leaves hang well horizontal. The {{convert|1|m|ft|abbr=on}} [[inflorescence]]s bear white male flowers with purplish [[anther]]s; the female flowers are undescribed. Fruit are {{convert|12|-|14.7|mm}} long and {{convert|7.1|-|9.5|mm|abbr=on}} wide, and are purplish black when ripe.<ref name = Zona>{{cite journal | quotes = no | last = Zona | first = Scott | year = 1996 | month = December | title = Roystonea (Arecaceae: Arecoideae) | journal = Flora Neotropica | volume = 71 |pages = 1–35 }}</ref> |
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==Taxonomy== |
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''Roystonea'' is placed in the [[subfamily]] Arecoideae and the [[tribe_(biology)|tribe]] Roystoneae.<ref name = Roncal2008>{{cite journal| quotes = no| last = Roncal| first = Julissa| coauthors = Scott Zona; Carl E. Lewis| year = 2008| title = Molecular Phylogenetic Studies of Caribbean Palms (Arecaceae) and Their Relationships to Biogeography and Conservation | journal = The Botanical Review| volume = 74| issue = 1| pages = 78–102| doi = 10.1007/s12229-008-9005-9}}</ref> 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.<ref name = Asmussen>{{cite journal| quotes = no| last = Asmussen| first = Conny B.| coauthors = John Dransfield; Vinnie Deickmann; Anders S. Barfod; Jean-Christophe Pintaud; William J. Baker| year = 2006| title = A new subfamily classification of the palm family (Arecaceae): evidence from plastid DNA phylogeny| journal = Botanical Journal of the Linnean Society| volume = 151| issue = 1| pages = 15–38| doi = 10.1111/j.1095-8339.2006.00521.x}}</ref> As of 2008, there appear to be no molecular phylogenetic studies of ''Roystonea''<ref name = Roncal2008/> and the relationship between ''R. dunlapiana'' and the rest of the genus is uncertain. |
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The species was first described by [[United States|American]] botanist [[Paul H. Allen]] in 1952. Allen's description of ''R. dunlapiana'', together with his description of [[Roystonea regia|''R. regia'' var. hondurensis'']] (now synonymised with typical ''R. regia'') was the first record of ''Roystonea'' species native to Central America.<ref name = Zona/> |
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===Common names=== |
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The species is commonly known as ''yagua'' or ''cabiche'' in [[Honduras]].<ref name = Zona/> |
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==Distribution== |
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''Roystonea dunlapiana'' is native to southern [[Mexico]], [[Honduras]] and [[Nicaragua]]. In his monograph of the genus, [[Scott Zona]] reported that it is "likely to occur in Belize". It grows in [[estuary|estuaries]] and coastal [[swamp]]s. It is the only species in the genus ''Roystonea'' which is absent from the insular Caribbean.<ref name = Zona/> |
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==References== |
==References== |
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Revision as of 20:55, 17 April 2009
| Roystonea dunlapiana | |
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| Roystonea dunlapiana | |
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| Species: | R. dunlapiana
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| Binomial name | |
| Roystonea dunlapiana | |
Roystonea dunlapiana, commonly known as yagua or cabiche is a species of palm which is native to southern Mexico and Central America. 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 20 metres (66 ft). Stems are grey-white and about 38 centimetres (15 in) in diameter. The upper portion of the stem is encircled by leaf sheaths, forming a green portion known as the crownshaft which is about 2 m (6.6 ft) long. Individuals have about 15 leaves with 4-metre (13 ft) rachises; the leaves hang well horizontal. The 1 m (3.3 ft) inflorescences bear white male flowers with purplish anthers; the female flowers are undescribed. Fruit are 12–14.7 millimetres (0.47–0.58 in) long and 7.1–9.5 mm (0.28–0.37 in) wide, and are purplish black when ripe.[1]
Taxonomy
Roystonea is placed in the subfamily Arecoideae and the tribe Roystoneae.[2] 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.[3] As of 2008, there appear to be no molecular phylogenetic studies of Roystonea[2] 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.[1]
Common names
The species is commonly known as yagua or cabiche in Honduras.[1]
Distribution
Roystonea dunlapiana is native to southern Mexico, Honduras and Nicaragua. 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.[1]
References
- ^ a b c d Zona, Scott (1996). "Roystonea (Arecaceae: Arecoideae)". Flora Neotropica. 71: 1–35.
{{cite journal}}: Unknown parameter|month=ignored (help); Unknown parameter|quotes=ignored (help) - ^ a b Roncal, Julissa (2008). "Molecular Phylogenetic Studies of Caribbean Palms (Arecaceae) and Their Relationships to Biogeography and Conservation". The Botanical Review. 74 (1): 78–102. doi:10.1007/s12229-008-9005-9.
{{cite journal}}: Unknown parameter|coauthors=ignored (|author=suggested) (help); Unknown parameter|quotes=ignored (help) - ^ Asmussen, Conny B. (2006). "A new subfamily classification of the palm family (Arecaceae): evidence from plastid DNA phylogeny". Botanical Journal of the Linnean Society. 151 (1): 15–38. doi:10.1111/j.1095-8339.2006.00521.x.
{{cite journal}}: Unknown parameter|coauthors=ignored (|author=suggested) (help); Unknown parameter|quotes=ignored (help)
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