织梦CMS - 轻松建站从此开始!

花卉图片网

当前位置: 主页 > 野生花卉 >

毛棉杜鹃花Rhododendron moulmainense

时间:2013-09-09 11:43来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ):毛棉杜鹃花 学名( Scientific Name ): Rhododendron moulmainense Hook. f. 英文名( English Common Name ): 别名( Chinese Common Name ): 丝线吊芙蓉、白杜鹃 异名( Synonym ): Rhododendron stenaulum Balf. f. et
中文名(Chinese Name):毛棉杜鹃花
学名(Scientific Name):Rhododendron moulmainense Hook. f.
英文名(English Common Name):
别名(Chinese Common Name):丝线吊芙蓉、白杜鹃
异名(Synonym):Rhododendron stenaulum Balf. f. et W. W. Smith  Rhododendron siamense Diels  Rhododendron oxyphyllum Franch.  Rhododendron klossii Ridl.  Rhododendron leucobotrys Ridl.  Rhododendron pectinatum Hutch.
科属(Family & Genus):杜鹃花科(Ericaceae) 杜鹃属
形态特征(Description):灌木或小乔木,高2-4(-8)米;幼枝粗壮,淡紫褐色,无毛,老枝褐色或灰褐色。叶厚革质,集生枝端,近于轮生,长圆状披针形或椭圆状披针形,长5-12厘米,稀达26厘米,宽2.5-8厘米,先端渐尖至短渐尖,基部楔形或宽楔形,边缘反卷,上面深绿色,叶脉凹陷,下面淡黄白色或苍白色,中脉凸出,侧脉于叶缘不连结,两面无毛;叶柄粗壮,长1.5-2.2厘米,无毛。花芽长圆锥状卵形,鳞片阔卵形或长倒卵形,两面无毛或外面近顶部被微柔毛,边缘被柔毛。数伞形花序生枝顶叶腋,每花序有花3-5朵;花梗长1-2厘米,无毛;花萼小,裂片5,波状浅裂,无毛;花冠淡紫色、粉红色或淡红白色,狭漏斗形,长4.5-5.5厘米,5深裂,裂片开展,匙形或长倒卵形,顶端浑圆或微凸起,花冠管长2-2.5厘米,基部直径3-4毫米,向上扩大;雄蕊10,不等长,长4.1-4.7厘米,略比花冠短,花丝扁平,中部以下被银白色糠皮状柔毛;子房长圆筒形,长约1厘米,微具纵沟,深褐色,无毛;花柱稍长过雄蕊,但常比花冠短,无毛。蒴果圆柱状,长3.5-6厘米,直径4-6毫米,先端渐尖,花柱宿存。花期4-5月,果期7-12月。
分布(Distribution):产江西、福建、湖南、广东、广西、四川、贵州和云南。生于海拔700-1500米的灌丛或疏林中;中南半岛、印度尼西亚也有分布。
用途(Use):
引自中国植物志英文版FOC Vol. 14 Page 427
Rhododendron moulmainense J. D. Hooker, Bot. Mag. 82: t. 4904. 1856.
毛棉杜鹃 mao mian du juan | Apiaceae  | Rhododendron
Rhododendron klossii Ridley; R. leucobotrys Ridley; ?R. nematocalyx I. B. Balfour & W. W. Smith; R. oxyphyllum Franchet; R. pectinatum Hutchinson; R. siamense Diels; R. stenaulum I. B. Balfour & W. W. Smith.
Shrubs or small trees, 3–15 m tall; bark gray-brown, not peeling. Petioles stout, 10–15 mm, glabrous; leaf blade leathery, oblong-lanceolate or elliptic-lanceolate, 5–12 × 2.5–5 cm; base cuneate or broadly cuneate; margin revolute; apex acuminate to acute; both surfaces glabrous; lateral veins not reaching margin. Inflorescence subapical, 2- or 3-flowered. Pedicel 1–2 cm, glabrous; calyx lobes 5, shallowly undulate, small, glabrous; corolla narrowly funnelform, white, with a yellow blotch within, 4.3–5.5 cm, tube 15–20 × 3–4 mm in diam., lobes deeply divided, spreading, oblong-obovate, apex entire and rounded; stamens 10, unequal, 3.5–4 cm, slightly shorter than corolla, filaments flat, with silvery-white scurfy pubescence below middle; ovary long-cylindric, tapering into style, 5–10 mm, dark brown, glabrous; style ca. 5 cm, often shorter than corolla, slightly longer than stamens, glabrous. Capsule cylindric, apex acuminate, 35–60 × 4–6 mm; style persistent. Fl. Mar–Apr, fr. Jul–Dec.
Open forests, thickets; 700–1500 m. S Yunnan [NE India, Indonesia, Malaysia, Myanmar, Thailand].
Rhododendron nematocalyx is said to differ in its larger calyx. However, calyx size is in general extremely variable in this section; it is therefore uncertain whether this entity should be treated as a straight synonym of R. moulmainense or maintained as a variety of it.







(责任编辑:徐晔春)
织梦二维码生成器
顶一下
(4)
100%
踩一下
(0)
0%
------分隔线----------------------------
发表评论
请自觉遵守互联网相关的政策法规,严禁发布色情、暴力、反动的言论。
评价:
表情:
用户名: 验证码:点击我更换图片
栏目列表
推荐内容