Chimonobambusa armata
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| Chimonobambusa armata | ||||||||||||
| ( Gamble ) Hsueh & TPYi |
Chimonobambusa armata is a bamboo species from the genus Chimonobambusa with mostly 3 to 5 meter high stalks and about 20 centimeters long blade blades. The range of the species is in India , Myanmar and China .
description
Chimonobambusa armata is persistent and forms leptomorphic rhizomes . The woody stalks reach a height of mostly 3 to 5, rarely up to 10 meters, and a diameter of 1 to 3 centimeters. The internodes are medium green and 12 to 14 inches long. They are round or square in cross section, hairless and sometimes warty. The nodes are thickened and show woody root thorns from the base to about the middle of the stalk. At the vaginal scar under the knot there is a ring of felt-like, reddish-yellow hair and the permanent base of the straw sheath. For each bud, three horizontally aligned, roughly equal side branches are formed that are less thick than the stalk. The straw sheaths are longer than the internodes, paper-like, green and purple in color. They are densely hairy reddish yellow with bristles with reddish yellow eyelashed edges. They fall off late and have no auricles . The bristles at the tip (oral setae) are reddish yellow. The ligule is 2 to 3 millimeters long. The blade of the blade is sub-triangular and 1 to 3 centimeters long. Three to five leaves are formed per branch. The leaf sheaths are about 7 centimeters long, glabrous and show clear leaf veins. The auricles are only weakly developed, the bristles at the end of the sheath (oral setae) clearly. The leaf blade is light green, narrowly lanceolate, about 20 centimeters long and 1.5 centimeters wide, pointed, paper-like to thinly paper-like and ciliate. Four or five pairs of nerves are formed per leaf.
The inflorescences are 7 to 9 inches long. The spikelets ( spikelets with basal buds that can form further spikelets) grow in bundles and are 5 to 8 centimeters long. They are linear and form on the basis of three or four upwardly increasing bracts . Several glumes and seven to ten florets are formed per spikelet . The florets at the tip of the spikelet are reduced. The lemma is 8 to 9 millimeters long. The palea is about the same size, thinly paper-like and has a blunt or slightly two-part tip. The erectile tissue is translucent and has white lashed edges. The ovary is ovoid-ellipsoid, the stylus divided short and close to the base. Two scars are formed. The fruits are caryopses with a fleshy pericarp .
Distribution and ecology
The natural range of the species is in India, Myanmar and China. In China, the species is found in Yunnan Province and the Tibet Autonomous Region at an altitude of 1,300 to 2,000 meters.
Systematics and research history
Chimonobambusa armata is a species from the genus Chimonobambusa , Tribus Arundinarieae , subfamily bamboo (Bambusoideae). The species was first described in 1896 by the British James Sykes Gamble as Arundinaria armata ( Basionym ) and assigned to the genus Chimonobambusa in 1983 by Xue Jiru and Yi Tongpei in the Journal of Bamboo Research . Other synonyms of the species are Oreocalamus armatus (Gamble) THWen , Chimonocalamus armatus (Gamble) RBMajumdar and Chimonobambusa strigosa Hsueh & HDZhang .
Individual evidence
- ↑ a b c d Zheng-de Zhu, Chris Stapleton: Chimonobambusa armata In: Flora of China. Volume 22, p. 156.
- ↑ a b W. D. Clayton, M. Vorontsova, KT Harman, H. Williamson: Chimonobambusa armata. In: GrassBase - The Online World Grass Flora. Royal Botanic Gardens, accessed February 28, 2015 .
- ↑ Chimonobambusa armata. In: The International Plant Name Index. Retrieved February 28, 2015 .
- ↑ Rafaël Govaerts (ed.): Chimonobambusa armata. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved May 22, 2020.
literature
- Wu Zheng-yi, Peter H. Raven, Deyuan Hong (Eds.): Flora of China . Volume 22: Poaceae . Science Press / Missouri Botanical Garden Press, Beijing / St. Louis 2006, ISBN 1-930723-50-4 , pp. 156 (English).
Web links
- Chimonobambusa armata at Tropicos.org. Missouri Botanical Garden, St. Louis, accessed February 28, 2015.