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蜿蜒杜鹃 wanyandujuan(散鳞杜鹃)

被子植物门 Angiospermae
双子叶植物纲 Dicotyledoneae
合瓣花亚纲 Sympetalae
杜鹃花目 Ericales
杜鹃花科 Ericaceae
杜鹃属 Rhododendron
相关名称 Common Names
拉丁名
Rhododendron bulu Hutch.
中文名
蜿蜒杜鹃
拼音
wanyandujuan
别名
散鳞杜鹃
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描述 Description

105.蜿蜒杜鹃(新拟)散鳞杜鹃(西藏植物志)

Rhododendron bulu Hutch. in Rhodod. Soc. Not. 3, No. 5: 280. 1932; Philipson et M. N. Philipson in Not. Bot. Gard. Edinb. 34: 46. 1975; Cullen in ibid. 39: 104. 1980; Davidian, Rhodod. Spec. 1: 175. 1982;西藏植物志3: 667. 图267, 1-6, 1986.

常为蜿蜒状蔓生灌木,罕直立,高30-160厘米。当年生枝亮褐色,密被鳞片。叶芽鳞脱落。叶散生短枝,叶片椭圆形,椭圆状卵形或长圆状椭圆形,长(8-)12-23毫米,宽3-6(-8)毫米,顶端圆钝,具不明显的小短尖,边缘常有微缺刻,基部宽楔形,上面暗绿色,无光泽,密被近邻接或重叠的脱落性的鳞片,下面淡黄色,具不整齐的稍不连接、连接或重叠的灰白色、淡黄色或麦秆色的鳞片,并混生少数较大的黄褐色鳞片;叶柄长1-3(-4)毫米。花序顶生或腋生于最上部的2-3片叶腋,伞形,有花1-3(-5)朵;花梗长1-2毫米,被短柔毛及淡色鳞片;花萼小,带红色,裂片卵形,三角形至近圆形,长1-2(-4)毫米,外面被淡色鳞片,边缘被淡色鳞片及疏缘毛;花冠漏斗状,长(9-)11-12(-15)毫米,粉红带紫色,洋红色至深紫色或偶为白色,喉部被短柔毛,外面偶被短柔毛,花管长2.5-3(-5)毫米,裂片长(7-)8-10(-12)毫米,外面被淡白色鳞片;雄蕊(8-)10,不等长,花丝基部被毛;子房长(1.5-)2-2.5毫米,基部有狭的柔毛带,上部密被淡色鳞片,花柱长12-17毫米,常较雄蕊长,基部被短柔毛和少数鳞片。蒴果卵圆形,长约5毫米,密被鳞片。花期5-6月,果期7-9月。

产西藏东南部、西南部及南部。生于桦木林、针-阔叶混交林下、灌丛中、开阔的林地及林缘,海拔2 900-3 900米。模式标本采自米林鲁霞。

知识共享:署名-非商业性使用-禁止演绎 1999《中国植物志》第57(1)卷 120页 PDF

Erect and tufted or straggling shrubs, 0.3–1.6 m tall; branchlets densely scaly. Petiole 1–3(–4) mm, scaly; leaf blade elliptic, elliptic-ovate or oblong-elliptic, (0.8–)1.2–2.3 × 0.3–0.6(–0.8) cm; base broadly cuneate; apex rounded, obscurely mucronate; abaxial surface pale yellow, scales irregularly contiguous to overlapping, pale, tan, straw or brown, with some larger and darker scales among them; adaxial surface dark green, scales contiguous to overlapping. Inflorescence 1–3(–5)-flowered. Pedicel 1–2 cm, scaly; calyx reddish; lobes 1–2(–4) mm, triangular to slightly rounded, scaly, margin scaly and sparsely ciliate; corolla funnelform, pinkish purple to deep purple or occasionally white, (0.9–)1.1–1.2(–1.5) cm; tube 2.5–3(–5) mm; outer surface sparsely scaly, rarely pubescent; throat pubescent; stamens (8–)10; filaments pubescent towards base; ovary (1.5–)2–2.5 mm, scaly; style 1.2–1.7 cm, longer than stamens, base sparsely scaly and pubescent. Capsule ovoid, ca. 5 mm, densely scaly. Fl. May–Jun, fr. Jul–Sep.

Mixed forests, thickets, wooded hillsides, scrub; 2900–3900 m. S Xizang.

知识共享:署名-非商业性使用-禁止演绎 FOC Vol.14PDF
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