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盆架树Alstonia scholaris

时间:2013-07-16 09:06来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ):盆架树 学名( Scientific Name ): Alstonia scholaris (Linn.) R. Br. 英文名( English Common Name ): 别名( Chinese Common Name ): 面条树、糖胶树 异名( Synonym ): Echites scholaris L.;Pala scholaris (L.) R






中文名(Chinese Name):盆架树
学名(Scientific Name):Alstonia scholaris (Linn.) R. Br.
英文名(English Common Name):
别名(Chinese Common Name):面条树、糖胶树
异名(Synonym):Echites scholaris L.;Pala scholaris (L.) Roberty
科属(Family & Genus):夹竹桃科(Apocynaceae)鸡骨常山属
形态特征(Description):乔木,高达20米,直径约60厘米(在国外有记载高可达40米,直径1.25米);枝轮生,具乳汁,无毛。叶3-8片轮生,倒卵状长圆形、倒披针形或匙形,稀椭圆形或长圆形,长7-28厘米,宽2-11厘米,无毛,顶端圆形,钝或微凹,稀急尖或渐尖,基部楔形;侧脉每边25-50条,密生而平行,近水平横出至叶缘联结;叶柄长1.0-2.5厘米。花白色,多朵组成稠密的聚伞花序,顶生,被柔毛;总花梗长4-7厘米;花梗长约1毫米;花冠高脚碟状,花冠筒长6-10毫米,中部以上膨大,内面被柔毛,裂片在花蕾时或裂片基部向左覆盖,长圆形或卵状长圆形,长2-4毫米,宽2-3毫米;雄蕊长圆形,长约1毫米,着生在花冠筒膨大处,内藏;子房由2枚离生心皮组成,密被柔毛,花柱丝状,长4.5毫米,柱头棍棒状,顶端2深裂;花盘环状。蓇葖2,细长,线形,长20-57厘米,外果皮近革质,灰白色,直径2-5毫米;种子长圆形,红棕色,两端被红棕色长缘毛,缘毛长1.5-2厘米。花期6-11月,果期10月-翌年4月。
分布(Distribution):广西南部、西部和云南南部野生。生于海拔650米以下的低丘陵山地疏林中、路旁或水沟边尼泊尔、印度、斯里兰卡、缅甸、泰国、越南、柬埔寨、马来西亚、印度尼西亚、菲律宾和澳大利亚热带地区也有分布。
用途(Use):本种根、树皮、叶均含多种生物硷,供药用。树形美观,常作行道树或公园栽培观赏。乳汁丰富,可提制口香搪原料,故有称 “糖胶树”。
引自中国植物志英文版FOC Vol. 16 Page 155
Alstonia scholaris (Linnaeus) R. Brown, Mem. Wern. Nat. Hist. Soc. 1: 76. 1811.
糖胶树 tang jiao shu  | Apocynaceae  | Alstonia
Echites scholaris Linnaeus, Mant. Pl. 1: 53. 1767; Pala scholaris (Linnaeus) Roberty.
Trees to 40 m tall, glabrous. Bark gray; branchlets copiously lenticellate. Leaves in whorls of 3-10; petiole 1-3 cm; leaf blade narrowly obovate to very narrowly spatulate, 7-28 X 2-11 cm, leathery, base cuneate, apex usually rounded; lateral veins 25-50 pairs, at 80-90° to midvein. Cymes dense, pubescent; peduncle 4-7 cm. Pedicel usually as long as or shorter than calyx. Corolla white, tube 6-10 mm; lobes broadly ovate or broadly obovate, 2-4.5 mm, overlapping to left. Ovaries distinct, pubescent. Follicles distinct, linear, to 57 cm X 2-5 mm. Seeds oblong, margin ciliate, ends with tufts of hairs 1.5-2 cm. Fl. Jun-Nov, fr. Oct-Dec. 2n = 22, 44*.
Mixed forests, village groves; 200-1000 m. SW Guangxi, S Yunnan; cultivated in Fujian, Guangdong, Hainan, Hunan, Taiwan [Cambodia, India, Malaysia, Myanmar, Nepal, New Guinea, Philippines, Sri Lanka, Thailand, Vietnam; Australia]
The bark and leaves are used to treat headache, influenza, bronchitis, and pneumonia. The wood is used for making coffins.
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