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 antanambensis is a species of flowering plant in the Arecaceae family. It is a palm endemic to Madagascar, where it grows in rainforests. The whole population occurs within Mananara-Nord National Park and there are fewer than 50 mature individuals estimated to remain.
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 decipiens, the Manambe palm, is a species of flowering plant in the Palm family (Arecaceae). It is found only in the central highlands of Madagascar, between Fianarantsoa and Andilamena at 1,200 to 1,700 meters elevation. The species is threatened by habitat loss, increasing frequency of fires, and over-exploitation of its seeds for the horticultural trade. Its most unique characteristic is that it commonly produces twin trunks like the letter "V", each trunk being up to 65 feet in height and up to 28 inches DBH. There can also be three trunks, or a single trunk.
Dypsis dransfieldii is a species of flowering plant in the Arecaceae family. It is a palm endemic to Madagascar that grows on white sands in lowland forest habitat. Populations are protected in Masoala National Park.
Dypsis faneva is a species of flowering plant in the Arecaceae family. It is a palm endemic to Madagascar, where it grows in rainforests. It is threatened by habitat destruction. Fewer than 70 mature individuals are thought to remain.
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 nauseosa is a species of flowering plant in the family Arecaceae. It is found only in Madagascar. It is threatened by habitat loss.
Dypsis onilahensis is a species of palm tree in the family Arecaceae. 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 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 singularis is a species of flowering plant in the Palm Family. It is found only on the island of Madagascar. It is threatened by habitat loss. It is remarkable for its height to width ratio; the greatest of any tree. It is up to 19ft 8in tall while being only 2/5ths of a inch in diameter, a length/width ratio of 600 fold.
Masoala is a genus of flowering plant in the family Arecaceae. It contains the following species, both endemic to Madagascar:
Orania ravaka is a species of flowering plant in the family Arecaceae.
Ravenea lakatra is a species of flowering plant in the Arecaceae family. It is a palm endemic to Madagascar. It is threatened by habitat loss and overcollection. There are probably fewer than 30 mature plants remaining in the wild.
Ravenea louvelii is a species of flowering plant in the Arecaceae family. It is a palm endemic to Madagascar, where it is known from a single location. There are fewer than 10 individuals left. They are believed to be in Andasibe-Mantadia National Park on the Western margin of central Madagascar. They are protected by restriction of access to the location.
Ravenea musicalis, or the river palm, is a species of flowering plant in the family Arecaceae. Also known by the Antanosy word "torendriky," meaning "submerged trunk", R. musicalis is known for being the only truly aquatic palm tree. Like many mangrove trees, R. musicalis seeds germinate within the fruit, and the seedling takes root underwater. as much as eight feet below the surface. Endemic to Madagascar, R. musicalis was first discovered in 1993 by Henk Beentje on an expedition funded by the McDonald's restaurant. although of course it was ethnoknown by the Antanosy People for centuries. This palm is listed in the IUCN Red List. This tree is harvested by local people primarily for building material and food. Over-harvesting, habitat degradation and habitat loss threaten the remaining populations. Horticulturalists prize R. musicalis for its rarity and unique life history.
Satranala decussilvae is a species of flowering plant in the Arecaceae family. It is a palm endemic to Madagascar. It is the only species in the genus Satranala, and is threatened by habitat loss. There are perhaps 200 mature individuals remaining.
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.
John Dransfield is an honorary research fellow and former head of palm research at the Royal Botanic Gardens, Kew, United Kingdom, as well as being an authority on the phylogenetic classification of palms.
