您所在的位置:FLPH首页 > Rhododendron adenopodum Franch
Rhododendron adenopodum FranchSearch in PESearch in CVHSearch in IPNISearch in TropicosSearch in BHLSearch in PlantListSearch in EOLSearch in GBIF
弯尖杜鹃 wanjiandujuan
Synonyms:
Rhododendron youngiae Fang
Rhododendron simiarum Hance subyoungiae (Fang) D. F. Chamb.

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 adenopodum Franch
中文名
弯尖杜鹃
拼音
wanjiandujuan
异名
Rhododendron youngiae Fang
Rhododendron simiarum Hance subyoungiae (Fang) D. F. Chamb.
文献 Literature
暂无内容
描述 Description

109. 弯尖杜鹃(中国高等植物图鉴)图版47:1-4

Rhododendron adenopodum Franch. in Journ. de Bot. 9: 391. 1895; Tagg in Stevenson, Spec. Rhodod. 569. 1930; Cullen et Chamb. in Not. Bot. Gard. Edinb. 37: 328. 1979; Chamb. in Not. Bot. Gard. Edinb. 39: 318. 1982.——R. youngae Fang in Contr. Biol. Lab. Sci. Soc. China Bot. 12:24. 1939;中国高等植物图鉴3: 122. 图4198. 1974.——R. simiarum Hance subsp. youngae (Fang) Chamb. ex Cullen et Chamb. in ibid. 37: 329. 1979; Chamb. in ibid. 39: 319. 1982.

常绿灌木,高约3米;树皮深灰色或灰白色,干后呈块状剥落;小枝有灰白色绒毛及少许腺体。叶多密生于枝顶,革质,倒卵状椭圆形或长倒卵形,长6-13厘米,宽2-4厘米,先端急尖,常有歪曲的短尖尾,基部楔形或近于圆形,边缘向下反卷,上面无毛,中脉微下陷,侧脉微现,约10-12对,下面有灰白色的薄毛被,中脉显著隆起,侧脉为毛被所覆盖;叶柄圆柱形,长1-1.5厘米,幼时被灰白色绒毛,后变无毛。总状伞形花序,有花4-8朵;总轴长1-1.5厘米,密被淡黄色柔毛,后变无毛;每花下有一膜质的苞片,倒卵形,长约2厘米,宽约1厘米,外面有密长柔毛,内面仅顶部有毛,其余无毛,开花后即脱落;花梗长1-2.5厘米,密被淡棕色长柄腺体及疏柔毛;花萼小,5裂,裂片三角状卵形,长3-5毫米,膜质,外面有少许硬毛,内面无毛;花冠漏斗状钟形,长4-4.5厘米,粉红色,有深红色斑点,5裂,裂片圆形,长1.5厘米,宽2厘米;雄蕊10,长1.5-3厘米,不等长,花丝线形,基部有开展的柔毛,花药长卵圆形,长3毫米,直径2毫米;子房卵圆形,长5毫米,有棕色的长柄腺体;花柱长4.5厘米,无毛,柱头膨大,3-5浅裂。蒴果圆柱状或长圆状椭圆形,长1.5-2厘米,直径6-10毫米,密被开展的腺头刚毛,成熟后5裂。花期4-5月,果期7-8月。

产四川东部、湖北西部。生于海拔1000-2200米的山坡灌木林中。模式标本采自四川城口。

本种叶片下面有灰白色毛被,先端急尖,有歪曲的短尖尾,花序总轴较长并有柔毛,花梗有长柄腺体等特征,在银叶杜鹃亚组中是十分特殊的,区别较易。

知识共享:署名-非商业性使用-禁止演绎 1994《中国植物志》第57(2)卷 146页 PDF

Shrubs, evergreen, 2–3 m tall; bark gray; young shoots with a dense grayish tomentum and a few glandular hairs. Petiole 10–15 mm; leaf blade leathery, obovate-elliptic or long-obovate, 6–13 × 2–4 cm; base cuneate; apex acuminate, shortly curved-cuspidate; abaxial surface indumentum grayish to pale fawn; adaxial surface glabrous when mature; midrib prominent abaxially, grooved adaxially; lateral veins 10–12-paired, inconspicuous. Inflorescence a lax racemose corymb, 4–8-flowered; rachis 10–15 mm, with a fawn-tomentum. Pedicel 1–2.5 cm, with glandular hairs; calyx lobes 5, 3–5 mm, membranous glandular on the back, triangular-ovate, margin glandular-ciliate; corolla funnel-campanulate, pale rose, usually crimson-spotted, 4–4.5 cm, puberulent within at the base, outside glabrous, lobes 5, orbicular, ca. 1.5 × 2 cm; stamens 10, unequal, 1.5–3 cm, filaments densely hairy in lower 1/4; ovary ovoid, ca. 5 mm, ca. 5–6-locular, densely clad with long-glandular hairs; style slender, glabrous. Capsule oblong-cylindric, ca. 15 × 7 mm, glandular. Fl. Apr–May, fr. Jul–Aug.

Thickets, mountain slopes, roadsides; 1000–2200 m. Chongqing, W Hubei.

知识共享:署名-非商业性使用-禁止演绎 FOC Vol.14PDF
检索表 Identification Key
暂无内容
下级分类 Lower Taxa
线条图 Illustration
照片 Photo
分布图 Map
Flora of Pan-Himalayas 《泛喜马拉雅植物志》官方网站 FLPH.org 京ICP备09059482号 我有话要说
技术支持 PPBC 中国植物图像库 2012-2-1更新