Lysidice (plant)

Seed

Lysidice is a plant genus in the subfamily of carob plants ( Caesalpinioideae ) within the legume family ( Fabaceae ). The only two species occur in the southern and south-western China and in Vietnam of course.

• 4.1 Notes and references

Description

Appearance and leaves

Lysidice species grow as shrubs or trees.

The alternate arranged on the branches leaves are divided into petiole and leaf blade. The paired pinnate leaf blade contains three to five pairs of leaflets against permanent. The short- stalked leaflets are asymmetrical on both sides and have a slightly oblique base. The early or late sloping Stipules are small subulate or narrowly triangular.

Inflorescences and flowers

In terminal, paniculate inflorescences are usually many flowers together. Are located at the base of the inflorescence large, red or white bracts The stalked flowers are each about two small bracts that are located in the upper part of the flower stalk.

The hermaphrodite flowers are zygomorphic with a double perianth. The four sepals are fused into a tube; the four calyx teeth overlap like roof tiles and are reflexed after anthesis. Of the five petals are the three rear nailed long and obovate and the two front much smaller, reduced, scale-like or awl. There are only two fertile stamens and three to eight staminodes present. The two fertile stamens consist of free or shortly fused at their base, long stamens, which are bent back in the flower bud, and elliptical anthers, which open with a longitudinal slot. The unequal length staminodes are subulate without dust bag or have from one to three of them small, reduced dust bag and are circular. The only stalked carpel is flattened, elongated and contains 6-14 ovules. The thin, long style ends in a small capitate stigma.

Fruit and seeds

The stalked, thick leathery or woody legume is flat, oblong or obovate -oblong and the upper end is beaked. The legume opens at maturity and then the two fruit flaps are flat twist wavy or spiral. The shiny seeds are flat, long, sloping broadly elliptical or almost circular, factor is the significant does not thicken or to a narrow -edged ring. The little embryo has two flat cotyledons ( cotyledons ).

Systematics and distribution

The genus Lysidice was built in 1867 by Henry Fletcher Hance in: erected Journal of Botany, British and Foreign, Volume 5, 10, pp. 298-299 with the type species Lysidice rhodostegia. The genus name is Lysidice Lysi - for detach from the Greek words and di - for two, this refers to the two Fruit flaps, twist direction Fruchtstiel at maturity and release the seeds.

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

The two species occur in the southern and south-western China and in Vietnam of course. Lysidice rhodostegia is in tropical Africa, Caribbean, Central America and in Florida a neophyte.

There are only two types of Lysidice:

• Lysidice brevicalyx CFWei: The first description was in 1983 in Chao Fen Wei: Materials of Saraca, Lysidice and Cercis from China in Guihaia, 3, 1, pp. 12-13, Table 1 thrives in sparse to dense forests in valleys and along of streams at altitudes of 500 to 1000 meters in the Chinese provinces of Guangdong, Guangxi, Guizhou and Yunnan.
• Lysidice rhodostegia Hance: You naturally grows on mountain slopes, in scrub, on the roadside, in valleys along streams at elevations below 500 meters in Vietnam and the Chinese provinces of Guangdong, Guangxi ( Longzhou ), Guizhou and Yunnan.

Use

Lysidice rhodostegia is used as an ornamental plant.

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

Swell

• Dezhao Chen, Prof. Dianxiang Zhang & Ding Hou: Lysidice, pp. 22 - text Registered as 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 for Legumes of the World of Royal Botanical Gardens, Kew. ( Section systematics)