Lysidice (genus of plants)

Lysidice
	Seeds
Systematics
	Eurosiden I
Order :	Fabales (Fabales)
Family :	Legumes (Fabaceae)
Subfamily :	Carob family (Caesalpinioideae)
Tribe :	Detarieae
Genre :	Lysidice
Scientific name
	Lysidice
	Hance

Lysidice is a genus in the subfamily of caesalpinioideae (Caesalpinioideae) within the family of the Leguminosae (Fabaceae). The only two species occurnaturallyin southern and southwestern China and Vietnam .

description

Appearance and leaves

Lysidice species grow as shrubs or trees .

The alternate leaves arranged on the branches are divided into a petiole and a leaf blade. The paired pinnate leaf blade contains three to five pairs of opposite pinnate leaves. The short-stalked pinnate leaves are asymmetrical on both sides and have a slightly sloping base. The stipules, which fall off early or late, are small sub- leaves or narrow triangular.

Inflorescences and flowers

In terminal, paniculate inflorescences, there are usually many flowers together. At the base of the inflorescences there are large, red or white bracts. The stalked flowers are each over two small bracts , which are located in the upper area of the peduncle.

The hermaphrodite flowers are zygomorphic with a double flower envelope . The four sepals are fused into a tube; the four calyx teeth overlap like roof tiles and are bent back after the anthesis . Of the five petals, the three rear ones are long nailed and obovate and the two front ones are much smaller, reduced, scale-like or sub-like. There are only two fertile stamens and three to eight staminodes . The two fertile stamens consist of long stamens free or short overgrown at their base, which are bent back in the flower bud, and elliptical anthers that open with a longitudinal slit. The staminodes of unequal length are sub-like without anthers or one to three of them have small, reduced anthers and are circular. The only stalked carpel is flattened, elongated and contains 6 to 14 ovules . The thin, long stylus ends in a small head-like scar.

Fruits and seeds

The stalked, thick leathery or woody legume is flat, oblong or obovate-oblong and the upper end is beaked. The legume opens when ripe and then the two fruit flaps are flat twisting, wavy or spiral. The shiny seeds are flat, long, obliquely wide, elliptical or almost circular, the not or noticeably thickened to a narrow angular ring. The small embryo has two flat germ layers ( cotyledons ).

Systematics and distribution

The genus Lysidice was set up in 1867 by Henry Fletcher Hance in: Journal of Botany, British and Foreign , Volume 5, 10, pp. 298-299 with the type species Lysidice rhodostegia . The generic name Lysidice is derived from the Greek words lysi - separate for oneself and di - for two, this refers to the two fruit flaps that twist towards the fruit stalk when ripe and release the seeds.

The genus Lysidice belongs to the tribe Detarieae in the subfamily Caesalpinioideae within the family of Fabaceae .

The two species occur naturally in southern and southwestern China and Vietnam. Lysidice rhodostegia is a neophyte in tropical Africa, the Caribbean islands, Central America and Florida .

There are only two types of Lysidice :

Lysidice brevicalyx C.F.Wei : It was first described in 1983 in Chao Fen Wei: Materials of Saraca, Lysidice and Cercis from China in Guihaia , 3, 1, pp. 12-13, table 1. It thrives in light to dense forests in valleys and along of flowing waters at altitudes of 500 to 1000 meters in the Chinese provinces of Guangdong, Guangxi, Guizhou and Yunnan.
Lysidice rhodostegia Hance : It thrives naturally on mountain slopes, in scrub, on the roadside, in valleys along rivers at altitudes below 500 meters in Vietnam and in the Chinese provinces of Guangdong, Guangxi (Longzhou), Guizhou and Yunnan.

use

Lysidice rhodostegia is used as an ornamental plant.

Lysidice rhodostegia is used medicinally in China against rheumatic and arthritic pain and it has a decongestant effect ( detumescence ). The underground and green parts of the plant are slightly poisonous.

swell

Dezhao Chen, Prof. Dianxiang Zhang & Ding Hou: Lysidice , p. 22 - online with the same text as the printed work , Wu Zheng-yi, Peter H. Raven & Deyuan Hong (eds.): Flora of China , Volume 10 - Fabaceae , Science Press and Missouri Botanical Garden Press, Beijing and St. Louis, 2010. ISBN 978-1-930723-91-7 (Sections Description, Occurrence and Systematics)
Datasheet at Legumes of the World at Royal Botanical Gardens Kew. (Section systematics)

Individual evidence

↑ ^a ^b ^c ^d Dezhao Chen, Prof. Dianxiang Zhang & Ding Hou: Lysidice , p. 22 - online with the same text as the printed work , Wu Zheng-yi, Peter H. Raven & Deyuan Hong (eds.): Flora of China , Volume 10 - Fabaceae , Science Press and Missouri Botanical Garden Press, Beijing and St. Louis, 2010. ISBN 978-1-930723-91-7

↑ First publication scanned at biodiversitylibrary.org .

^ Lysidice at Tropicos.org. Missouri Botanical Garden, St. Louis, accessed January 27, 2014.

↑ ^a ^b ^c Data sheet from Legumes of the World at Royal Botanical Gardens Kew. ( Page no longer available , search in web archives ) Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice. Last accessed on January 27, 2014@1@ 2Template: Dead Link / www.kew.org

^ Lysidice in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved January 27, 2014 ..

↑ Species of the genus Lysidice at LegumeWeb - World Database of Legumes (ILDIS), Version 10.1 from November 1, 2005 .

↑ Entry in ILDIS - World Database of Legumes , Version 10.38 from July 20, 2010.

Web links

Commons : Lysidice - collection of pictures, videos and audio files