Biology:Podocarpus coriaceus
| Podocarpus coriaceus | |
|---|---|
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Gymnospermae |
| Division: | Pinophyta |
| Class: | Pinopsida |
| Order: | Araucariales |
| Family: | Podocarpaceae |
| Genus: | Podocarpus |
| Species: | P. coriaceus
|
| Binomial name | |
| Podocarpus coriaceus Rich. & A.Rich.
| |
Podocarpus coriaceus, commonly known as the yucca plum pine,[2] is a species of conifer, an evergreen tree in the family Podocarpaceae. It is found in the Dominican Republic, Guadeloupe, Martinique, Montserrat, Puerto Rico, and Saint Kitts and Nevis.
Description
Podocarpus coriaceus is a small tree rarely exceeding 10 m (33 ft) in height. The bark is thick and smooth when young, growing fissured and flaky with age. The branches are spreading, and often contorted. The leathery leaves grow in opposite pairs and are up to 120 mm (5 in) long and 14 mm (0.6 in) wide. They have parallel sides and straight margins, the upper surface being dark green and the underside dull green. The pollen cones and seed cones grow in the axils of the leaves, the seed cones having short stalks and developing into succulent red fruits about 8 by 6 mm (0.3 by 0.2 in), each containing a single seed.[3]
Distribution and habitat
This tree is endemic to the West Indies where it has a unique distribution. It is found in the arc of islands from Trinidad to Hispaniola but is completely absent from some islands that would appear to have suitable mountains with ideal growing conditions. It occurs on Trinidad, Tobago, St Lucia, Martinique, Dominica, Guadeloupe, Montserrat, Saint Kitts and Nevis, Hispaniola, and Puerto Rico. It mostly occurs above 500 m (1,640 ft) but also grows lower than this on Nevis, Trinidad and Tobago. In Puerto Rico, it occurs in the mountains in the west and in the Sierra de Luquillo in the east, but not the main Cordillera Central range in the centre of the island where the highest mountains are. The reasons for this patchy distribution are unclear.[4] On some islands it grows on poor sandy soil and in Puerto Rico grows in the "elfin forest" on exposed mountain ridges and summits where the vegetation is scrubby and less than 10 m (30 ft) in height.[1]
Status
As a common species in the islands on which it grows, facing no particular threats, the conservation status of P. coriaceus is assessed by the International Union for Conservation of Nature as being of "least concern.[1]
References
- ↑ 1.0 1.1 1.2 Farjon, A. (2013). "Podocarpus coriaceus". IUCN Red List of Threatened Species 2013: e.T42496A2982986. doi:10.2305/IUCN.UK.2013-1.RLTS.T42496A2982986.en. https://www.iucnredlist.org/species/42496/2982986. Retrieved 15 November 2021.
- ↑ "Podocarpus coriaceus". Natural Resources Conservation Service PLANTS Database. USDA. https://plants.usda.gov/core/profile?symbol=POCO3. Retrieved 9 October 2015.
- ↑ Farjon, Aljos (2010). A Handbook of the World's Conifers. BRILL. p. 1102. ISBN 978-90-474-3062-9. https://books.google.com/books?id=HDGwCQAAQBAJ&pg=PT1102.
- ↑ Farjon, Aljos; Filer, Denis (2013). An Atlas of the World's Conifers: An Analysis of their Distribution, Biogeography, Diversity and Conservation Status. BRILL. p. 135. ISBN 978-90-04-21181-0. https://books.google.com/books?id=uUNWAgAAQBAJ&pg=PA135.
Wikidata ☰ Q5410614 entry
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