Dypsis onilahensis | |
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Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Monocots |
Clade: | Commelinids |
Order: | Arecales |
Family: | Arecaceae |
Genus: | Dypsis |
Species: | D. onilahensis |
Binomial name | |
Dypsis onilahensis | |
Synonyms [2] | |
Chrysalidocarpus brevinodisH.Perrier Contents |
Dypsis onilahensis is a species of palm tree in the family Arecaceae. [3] It is endemic to Madagascar as is reflected in the species name (onilahensis) referring to the Onilahy River, south of Toliara. It is threatened by habitat loss.
Dypsis onilahensis is a pinnate leaved, clustering palm typically growing in clusters of 3 - 10 trees with adult trees in ideal conditions growing to 10 – 20 m high in height with stems of around 15 cm in diameter. Stems are typically grey at the base and dark green towards the crown with ringed bands and surrounding the circumference of the stem. Leaves grow up to 2 m in length with up to 70 pinnae (leaflets) of 30 cm or more and arch pendulously downwards giving the palm a graceful weeping appearance.
Dypsis onilahensis is native to North West and West Madagascar as well as South-Central Madagascar. In the northern part of its range it may be found growing in riverine forest at between 50 – 300 m altitude and between 750m - 2400 m in riverine or evergreen forest remnants in the central mountains and southern parts of its range.
It is classed as vulnerable in the wild. Although its potential native range is large the habitat is prone to destruction by fire. Numbers are estimated at less than a thousand. A population in the Isalo National Park is well-protected, but numbers less than a few hundred individuals. Outside of Madagascar D. onilahensis is fairly common in cultivation in sub-tropical and warm temperate climates including South Africa, California, southern Florida and Australia.
Dypsis decaryi is a species of flowering plant in the Arecaceae family. It is commonly known as the triangle palm. It is indigenous to the Madagascan rainforest. Some specimens grow to a height of some 15 metres (49 ft) in the wild. It is relatively new to cultivation however, so outside its native habitat it rarely achieves anything like that height. The leaves are about 2.5 metres in length, growing almost upright from the trunk and arching gracefully outward about a metre from their tips. The leaf bases are arranged in three vertical columns set about 120 degrees apart on the main stem, forming a triangular shape in cross section. This shape has given rise to the palm's common name.
Dypsis basilonga is a species of flowering plant in the family Arecaceae. It is endemic to Madagascar. It grows in humid, mossy habitat on mountains. It is threatened by overharvesting.
Dypsis canaliculata is a species of flowering plant in the family Arecaceae. It is found only in Madagascar, where it is thought that fewer than 10 individual plants exist. It was previously collected from two disjunct populations, one in Manongarivo and one in Ampasimanolotra. Both were growing on sandstone in lowland forest regions. In 2001 another small population was discovered in Zahamena National Park, and this is now the only known surviving group. To date no flowers from D. canaliculata have ever been collected for science.
Dypsis canescens, also known as Chrysalidocarpus canescens, is a species of flowering plant in the family Arecaceae. It is endemic to the Sambirano region of northwestern Madagascar. It was identified in 1913. It is probably extinct, given that it has not been seen for half a century.
Dypsis ceracea is a species of flowering plant in the family Arecaceae. It is found only in Madagascar. It is threatened by habitat loss.
Dypsis commersoniana is a species of flowering plant in the family Arecaceae. It is found only in Madagascar. It is threatened by habitat loss.
Dypsis crinita is a species of flowering plant in the family Arecaceae. It is found only in Madagascar. It is threatened by habitat loss.
Dypsis heteromorpha is a species of flowering plant in the family Arecaceae. It is found only in Madagascar. It is threatened by habitat loss.
Dypsis ligulata is a species of flowering plant in the family Arecaceae. It is found only in Madagascar. It is threatened by habitat loss.
Dypsis madagascariensis is a species of flowering plant in the family Arecaceae. It is found only in Madagascar. It is threatened by habitat loss.
Dypsis mananjarensis is a species of flowering plant in the family Arecaceae. It is found only in Madagascar. It is threatened by habitat loss.
Dypsis mangorensis is a species of flowering plant in the family Arecaceae. It is found only in Madagascar. It is threatened by habitat loss.
Dypsis nauseosa is a species of flowering plant in the family Arecaceae. It is found only in Madagascar. It is threatened by habitat loss.
Dypsis nossibensis is a species of flowering plant in the family Arecaceae. It is found only in the Lokobe Forest in north-west Madagascar and is threatened by habitat loss. Fewer than 25 trees have been counted.
Dypsis perrieri is a species of flowering plant in the family Arecaceae. It is found only in Madagascar. It is threatened by habitat loss.
Dypsis rivularis is a species of flowering plant in the Arecaceae family. It is palm endemic to Madagascar, where it grows in forests near rivers. It is threatened by habitat loss. There are fewer than 100 mature individuals estimated to remain.
Dypsis sahanofensis is a species of flowering plant in the family Arecaceae. It is found only in Madagascar. It is threatened by habitat loss.
Dypsis tsaratananensis is a species of flowering plant in the family Arecaceae. It is found only in Madagascar.
Dypsis utilis is a species of flowering plant in the family Arecaceae. It is found only in Madagascar. It is threatened by habitat loss.
Dypsis brevicaulis is a species of flowering plant in the Arecaceae family. It is a dwarf palm found on only three sites in Madagascar, with fewer than fifty plants ever found in the wild. The plant is part of the IUCN Sampled Red List Index for Plants, a study of representative species from all over the world which is studying extinction trends for plants.