Aiphanes leiostachys
| Aiphanes leiostachys | |
|---|---|
| Conservation status | |
| Scientific classification | |
| Kingdom: | Plantae |
| (unranked): | Angiosperms |
| (unranked): | Monocots |
| (unranked): | Commelinids |
| Order: | Arecales |
| Family: | Arecaceae |
| Subfamily: | Arecoideae |
| Tribe: | Cocoseae |
| Subtribe: | Bactridinae[2] |
| Genus: | Aiphanes |
| Species: | A. leiostachys |
| Binomial name | |
| Aiphanes leiostachys Burret | |
Aiphanes leiostachys is a species of palm that is endemic to Colombia. Known from only a few forest fragments in the Cordillera Central, it is threatened by habitat loss and forest management practices.
Description
Aiphanes lindeniana is a small palm 3.5 to 5 metres (11 to 16 ft) tall with stems about 3 centimetres (1.2 in) in diameter, which are sparsely covered with slender spines up to 3 cm (1.2 in) long. Individuals are usually multi-stemmed, with up to 10 stems, but occasionally are single-stemmed. Stems bear about 11 leaves which consists of a leaf sheath, a petiole and a rachis. Leaf sheaths, which wrap around the stem, are 18 cm (7 in) long and are densely covered with black spines up to 1 cm (0.39 in) long. Petioles are green, 14 to 16 cm (6 to 6 in) long, and are covered with spines up to 5 cm (2.0 in) long. Rachises are 102 to 108 cm (40 to 43 in) and covered with spines. Leaves each bear 17 to 20 pairs of leaflets which are arranged in three vertical rows.[3]
The male flowers, which are white with a purplish-brown corolla, are 1.5 to 2 millimetres (0.059 to 0.079 in) long. The female flowers are slightly larger—2.5 to 3 mm (0.098 to 0.118 in) long. The fruit have not been described.[3]
Taxonomy
The species was first described by German botanist Max Burret in 1932, based on a collection made in 1880. Since the original collection was destroyed when the Berlin Herbarium was bombed during the Second World War, a neotype has been designated.[3]
Distribution and status
Aiphanes leiostachys is endemic to Colombia where it is known from only a few forest fragments in the Cordillera Central[1] in an area that has largely been deforested.[3] Given its limited range and the continuing pressures of forest conversion for agriculture and plantation forestry, it is classified as an endangered species.[1]
See also
References
- ↑ 1.0 1.1 1.2 Bernal, R. 1998. Aiphanes leiostachys. 2006 IUCN Red List of Threatened Species. Downloaded on 20 July 2007.
- ↑ Asmussen, Conny B.; John Dransfield; Vinnie Deickmann; Anders S. Barfod; Jean-Christophe Pintaud; William J. Baker (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.
- ↑ 3.0 3.1 3.2 3.3 Borchsenius, Finn; Rodrigo Bernal (December 1996). "Aiphanes (Palmae)". Flora Neotropica 70.