Medusandra
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| Scientific name | ||||||||||||
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Medusandra is a plant genus of the family of peridiscaceae . The two species of this genus are native only to the tropics of western Africa .
description
Medusandra species are deciduous trees with a yellow milky sap . The alternate, long-stalked leaves are large and simple to compound (if the leaves are understood as compound, then they have only one leaflet). The leaf margin is slightly serrated. The stipules are small.
The pendulous, kitten-like, racemose inflorescence has small bracts . The small, radial symmetry flowers are hermaphroditic and five-fold. The five sepals remain on the fruits. The five free petals are only small. There are five free stamens in each of two circles ; they are very unevenly shaped and five of them are converted into long staminodes . The three (or four) carpels have become a top permanent ovary grown. The three (or four) short styles are not fused, with small scars . The leathery, three-chamber capsule fruits contain only one large seed.
Systematics
The incorporation of the genus was unclear for a long time, at times they were led in a separate family Medusandraceae. The Angiosperm Phylogeny Group introduced her to the Peridiscaceae family in 2009 .
Only two species belong to the genus Medusandra :
- Medusandra mpomiana Letouzey & Satabié
- Medusandra richardsiana Brenan
swell
- As a family of the Medusandraceae on the AP website (engl.)
- Description as the family of the Medusandraceae at DELTA. (engl.)
Individual evidence
- ↑ a b Angiosperm Phylogeny Group : An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG III. In: Botanical Journal of the Linnean Society. Volume 161, No. 2, 2009, pp. 105-121, DOI: 10.1111 / j.1095-8339.2009.00996.x .
- ↑ Medusandraceae in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland.