Amesiodendron chinense
| Amesiodendron chinense | ||||||||||||
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Amesiodendron chinense |
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| Systematics | ||||||||||||
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| Scientific name of the genus | ||||||||||||
| Amesiodendron | ||||||||||||
| Hu | ||||||||||||
| Scientific name of the species | ||||||||||||
| Amesiodendron chinense | ||||||||||||
| ( Merr. ) Hu |
Amesiodendron chinense is, according to current research, the only kind of monotypic genus Amesiodendron from the family of the soap tree plants (Sapindaceae).
distribution
The homeland of the species Amesiodendron chinense is in Southeast Asia : South China , Indonesia , Laos , Malaysia , Myanmar , Thailand and Vietnam .
description
Amesiodendron chinense grows as an evergreen tree . The leaves are pinnate in pairs (without a single terminal leaflet). The leaf spindle has a round cross-section. The leaflets are dentate or have entire margins. There are no stipules .
Amesiodendron chinensis is monoecious ( monoecious ). The inflorescence is an often branched thyrsus . The flowers are polygamous, so there are unisexual and hermaphrodite flowers on the same plant. The flowers are radial symmetry . The flower base is cup-shaped and thin-walled. There are five free, non-overlapping sepals and five, rarely six or seven petals . The male and hermaphrodite flowers have eight, sometimes nine protruding stamens . The stamens are usually of different lengths. The anthers are ellipsoid. In the female and hermaphrodite flowers, the ovary is in three parts with three chambers. There is one fruit plant per chamber. The stylus barely protrudes from the ovary.
The capsule fruit , which consists of the three chambers that have grown together only at the base , usually contains only one or two developed chambers. The pericarp is firm and lignified. The flat spherical seeds are not covered by an aril ; their covering is pale brown and leathery.
Systematics
The genus was established in 1936 by the Chinese botanist Hu Xiansu . The American botanist Oakes Ames (1874–1950) is honored with the generic name .
In 1979 the botanist Lo differentiated two species Amesiodendron integrifoliolatum and Amesiodendron tienlinense in the genus. However, since the different characteristics of the two species described by Lo were also described elsewhere for the species Amesiodendron chinense , the Flora of China currently follows this view and sees the first two species descriptions only as synonyms of the only recognized species Amesiodendron chinense Hu .
swell
- Entry in the Flora of China (English).
Web link
- Amesiodendron chinense onthe IUCN 2013 Red List of Threatened Species . Listed by: World Conservation Monitoring Center, 1998. Retrieved September 30, 2013.