Erythrochiton gymnanthus
Encyclopedia
Erythrochiton gymnanthus is an endangered tree or shrub from the family Rutaceae
Rutaceae
Rutaceae, commonly known as the rue or citrus family, is a family of flowering plants, usually placed in the order Sapindales.Species of the family generally have flowers that divide into four or five parts, usually with strong scents...

. It is endemic to Costa Rica
Costa Rica
Costa Rica , officially the Republic of Costa Rica is a multilingual, multiethnic and multicultural country in Central America, bordered by Nicaragua to the north, Panama to the southeast, the Pacific Ocean to the west and the Caribbean Sea to the east....

. The genus Erythrochiton
Erythrochiton
Erythrochiton is a genus of plant in family Rutaceae. It contains the following species :* Erythrochiton giganteus, Kaastra & A.H.Gentry* Erythrochiton brasiliensis Nees & Mart.* Erythrochiton gymnanthus...

 consists of only twelve species and it native to the Neotropical region.

Description

Erythrochiton gymnanthus reaches a height between 1.5 and 6 metres. The young branches are glabrous. Each branch bearing a leaf tuft. The alternate unifoliate leaves are 14.5 to 36.4 centimetre in length and 3.5 to 11 centimetres in width. The leaves are obovate or oblanceolate, sometimes narrow oblanceolate. They are cuneate and decurrent at base. The adaxial surface smooth of the petiole is 0.5 to 3 cm. The flowers are white. The corolla is 4.5 to 6 centimetre in diameter. The fruit is a capsule which is formed by 4 to 5 glabrous carpels measuring 1.6 to 1.9 cm. The flowering time is from April to July.

Distribution and habitat

Erythrochtion gymnanthus is endemic to the Central Pacific Conservation Area
Central Pacific Conservation Area
Central Pacific Conservation Area is an administrative area which is managed by SINAC for the purposes of conservation in the southwestern part of Costa Rica, on the Pacific coast...

 of Costa Rica
Costa Rica
Costa Rica , officially the Republic of Costa Rica is a multilingual, multiethnic and multicultural country in Central America, bordered by Nicaragua to the north, Panama to the southeast, the Pacific Ocean to the west and the Caribbean Sea to the east....

, in particular the regions of Barranca and Miramar and in the Carara National Park
Carara National Park
Carara National Park is a National Park in the Central Pacific Conservation Area located near the Pacific coast of Costa Rica.Carara National Park was established on April 27, 1978 as a biological reserve, but its growing popularity after 1990 forced the government to upgrade its category to...

. It grows mostly in elevations from 20 to 100 metres in humid forests.

Status

Erythrochtion gymnanthus is threatened due to leaf diseases and the fragmentation of its habitat.

External links

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