Acer tegmentosum

Korean Snakeskin Maple (Acer tegmentosum )

The Korean Snakeskin Maple (Acer tegmentosum ) is a plant of the genus maples ( Acer) in the family of Soapberry ( Sapindaceae ). It is native to eastern Asia.

• 4.1 Notes and references

Description

Vegetative characteristics

The Korean snakeskin maple grows as a deciduous tree that can reach heights of growth of up to 15 meters. The dark - gray bark has lenticels conspicuous by their, chalk white stripes on the part of the name " snake skin " refers. The branches have a smooth, during the winter bluish- white bark. The elliptical winter buds are blue.

The constantly against arranged on the branches leaves consist of a petiole and leaf blade of a. The bald petiole has a length of usually 4-7, rarely up to 13 centimeters. The paper-like, simple leaf blade with a length of 10 to 12 inches and a width of 7-9 inches three - or five-lobed with a rounded or almost heart-shaped Spreitenbasis. The leaf lobes are broadly ovate, rarely oval or triangular shaped - oval. Your tip is usually pointed and the leaf margin double serrate. The lobes are ovate and sometimes two small basal, lateral lobes are present. The upper leaf surface is bare and the bottom light green colored with yellowish hairs on the nerves branching. There are five main nerves and seven or eight pairs of lateral nerves present.

Generative features

Acer tegmentosum is andromonözisch. The flowering period is in April. The pendant, racemose inflorescence contains about 15 flowers. The very slender flower stalk is about 5 millimeters long. The five petals have a double perianth. Five sepals are having a length of about 3 millimeters and a width of about 1.5 millimeters long with a blunt tip. The five petals are obovate with a length of about 3 mm and a width of about 2 mm. It is a bald, intrastaminaler discus available. In the male flowers bald eight stamens and a rudimentary ovary are present. In the female flowers rudimentary stamens and a bald ovary and a short pen are available.

The yellowish-brown, winged nut fruit is with the wings of 2.5 to 3 inches long and 1 to 1.3 inches wide. The nut fruit itself is flat or slightly convex. The wings are obtuse spread to almost horizontal. The fruits ripen in September.

The chromosome number is 2n = 26

Occurrence

Acer tegmentosum is native to Siberia, Korea and China. In China, Acer tegmentosum thrives in pine and mixed forests at altitudes between 500 and 1000 meters in the provinces of Heilongjiang, Jilin and Liaoning.

System

The first description of Acer tegmentosum was 1856 Karl Johann Maximowicz in Bulletin de la Classe Physico - Mathématique de l' Academie Imperiale des Sciences de Saint- Pétersbourg, 15, pp. 125 A synonym for Acer tegmentosum Maxim. Acer is pensylvanicum var tegmentosum ( Maxim. ) WESM .. Acer tegmentosum belongs to the section Macrantha in the genus Acer.

Swell

• Tingzhi Xu, Yousheng Chen, Piet C. de Jong, Herman John Oterdoom & Chin- Sung Chang: Aceraceae in the Flora of China, Volume 11, 2008: Acer tegmentosum, p 540 ( section description, distribution and systematics)