Auerodendron pauciflorum
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Auerodendron pauciflorum is the extinction endangered species of the genus auerodendron within the family of Buckthorn family . It is endemic to Puerto Rico .
description
Auerodendron pauciflorum is a shrub that reaches a height of 5 meters. The leaf stalks are 2 to 2.5 inches long. The leaf blade is ovate or elliptically ovate. The parchment-like, smooth, net-like veined leaves are 15 centimeters long and 3.5 to 6 centimeters wide. At the apex they are rounded, sharply pointed or pointed hump. At the base they are rounded or truncated and often asymmetrical. The two to three flowers are axially arranged. The inflorescence axes are 5 to 7 mm long, the flower stalks are 6 to 7 mm long. The bell-shaped flower tube is 2 mm long. The 2.5 mm long corolla lobes are triangular-lanceolate and keel-shaped on the inside. The 2 mm long obovate petals are truncated and bulged at the apex and nail-shaped at the base. The habit of the fruit is unknown.
Occurrence and habitat
The only place where Auerodendron pauciflorum is found is in the Guajataca State Forest near Quebradillas in Puerto Rico. The species grows on limestone soils.
status
Auerodendron pauciflorum is only known from a population consisting of ten specimens. Most of the land on which the species occurs is owned by a development company. The causes of danger are the poor reproduction rate and the tourist development of the region. Seedlings have never been found, but efforts are being made to grow the plant from tissue cultures.
literature
- Henri Alain Liogier: Descriptive Flora of Puerto Rico and Adjacent Islands: Spermatophyta . Editorial UPR, 1994. ISBN 0847723364
- US Fish and Wildlife Service: Endangered and Thraatened Wildlife and Plants Determination of Endangered Status for the Plant Auerodendron pauciflorum PDF, online, 811 kB
- US Fish and Wildlife Service: Recovery Plan for Myrcia paganii and the Auerodendron pauciflorum PDF, online, 3.41 MB
Web links
- Auerodendron pauciflorum in the endangered Red List species the IUCN 2008. Posted by: World Conservation Monitoring Center, 1998. Retrieved on 5 August, 2008.