红晕杜鹃Rhododendron roseatum
中文名（Chinese Name）：红晕杜鹃
学名（Scientific Name）：Rhododendron roseatum Hutch.
英文名（English Common Name）：
别名（Chinese Common Name）：
异名（Synonym）：Rhododendron lasiopodum Hutch.
科属（Family & Genus）：杜鹃花科（Ericaceae）杜鹃属
形态特征（Description）：灌木，高1.2-3米，有时成小乔木，高达4米。幼枝淡褐色，疏被鳞片。叶聚生枝条上部，卵形，长6-10厘米，宽2-4.5厘米，顶端三角状锐尖，偶或渐尖，具短尖头，基部钝圆至阔楔形，幼叶上面密被褐色鳞片，以后渐脱落，下面略呈灰白色，密被褐色或褐红色鳞片，鳞片不等大，相距不超过其直径或相邻接，偶有相距为其直径，中脉在上面略下陷，在下面凸起，侧脉6-8对，纤细，在两面均不明显，叶柄长0.5-1.2厘米，疏生鳞片，幼时两侧疏生粗毛。顶生伞形花序有花2-4；花梗长1-2厘米，密被鳞片，基部密被灰白色短茸毛，花梗自此断落；花萼不发达，外面密被鳞片，波状5裂，边缘密生长睫毛，偶而近无毛；花冠芳香，宽漏斗状，长5.5-7厘米，于蕾期粉红色，花开后白色带淡红色晕，5裂至花冠中部，裂片圆形，外面疏或密生鳞片，筒部被灰白色微柔毛；雄蕊10，不等长，长达花冠裂片中部，花丝下部被柔毛；子房6室，密被鳞片，花柱与花冠近等长，下部被鳞片。蒴果长圆状卵形，长约1.5厘米，密被褐色鳞片。花期5-7月。
分布（Distribution）：产云南腾冲、碧江。生于海拔2000-3000米常绿阔叶林下、山坡阳处，山脊林内或岩石上灌丛中。
用途（Use）：
引自中国植物志英文版FOC Vol. 14 Page 271
Rhododendron roseatum Hutchinson, Notes Roy. Bot. Gard. Edinburgh. 12: 57. 1919.
红晕杜鹃 hong yun du juan | Apiaceae | Rhododendron
Rhododendron lasiopodum Hutchinson.
Shrubs, sometimes small trees, 1.2–3(–4) m tall; young shoots pale brown, sparsely scaly. Petiole 5–12 mm, sparsely scaly; leaf blade ovate, 6–10 × 2–4.5 cm; base obtuse, rounded or broadly cuneate; apex triangular, acute, or acuminate, apiculate; abaxial surface pink green, gray-white, scales less than 1 × their own diameter apart to nearly contiguous, rarely 1 × their own diameter apart, unequal, brown or brownish red; adaxial surface densely brown scaly when young; midrib flat raised abaxially, slightly concave adaxially; lateral veins 6–8-paired, thin, inconspicuous on both sides. Inflorescence terminal, umbellate, 2–4-flowered. Flowers fragrant. Pedicel 1–2 cm, densely scaly; base gray-white-pubescent; calyx undeveloped, lobes 5, densely scaly; corolla broadly funnelform, 5-lobed to the middle, pinkish in bud, white tinged with pale red at anthesis, 5.5–7 cm, tube gray-white-pubescent, lobes rounded, densely scaly; stamens 10, unequal, half as long as corolla lobes; filaments pubescent below; ovary 6-locular, densely scaly; style as long as corolla, basal part scaly. Capsule cylindric-ovoid, ca. 15 mm, densely brown-scaly. Fl. May–Jul.
Evergreen broad-leaved forests, forests on hilltops, open slopes, rocks; 2000–3000 m. Yunnan [NE Myanmar].
（责任编辑：徐晔春）
学名（Scientific Name）：Rhododendron roseatum Hutch.
英文名（English Common Name）：
别名（Chinese Common Name）：
异名（Synonym）：Rhododendron lasiopodum Hutch.
科属（Family & Genus）：杜鹃花科（Ericaceae）杜鹃属
形态特征（Description）：灌木，高1.2-3米，有时成小乔木，高达4米。幼枝淡褐色，疏被鳞片。叶聚生枝条上部，卵形，长6-10厘米，宽2-4.5厘米，顶端三角状锐尖，偶或渐尖，具短尖头，基部钝圆至阔楔形，幼叶上面密被褐色鳞片，以后渐脱落，下面略呈灰白色，密被褐色或褐红色鳞片，鳞片不等大，相距不超过其直径或相邻接，偶有相距为其直径，中脉在上面略下陷，在下面凸起，侧脉6-8对，纤细，在两面均不明显，叶柄长0.5-1.2厘米，疏生鳞片，幼时两侧疏生粗毛。顶生伞形花序有花2-4；花梗长1-2厘米，密被鳞片，基部密被灰白色短茸毛，花梗自此断落；花萼不发达，外面密被鳞片，波状5裂，边缘密生长睫毛，偶而近无毛；花冠芳香，宽漏斗状，长5.5-7厘米，于蕾期粉红色，花开后白色带淡红色晕，5裂至花冠中部，裂片圆形，外面疏或密生鳞片，筒部被灰白色微柔毛；雄蕊10，不等长，长达花冠裂片中部，花丝下部被柔毛；子房6室，密被鳞片，花柱与花冠近等长，下部被鳞片。蒴果长圆状卵形，长约1.5厘米，密被褐色鳞片。花期5-7月。
分布（Distribution）：产云南腾冲、碧江。生于海拔2000-3000米常绿阔叶林下、山坡阳处，山脊林内或岩石上灌丛中。
用途（Use）：
引自中国植物志英文版FOC Vol. 14 Page 271
Rhododendron roseatum Hutchinson, Notes Roy. Bot. Gard. Edinburgh. 12: 57. 1919.
红晕杜鹃 hong yun du juan | Apiaceae | Rhododendron
Rhododendron lasiopodum Hutchinson.
Shrubs, sometimes small trees, 1.2–3(–4) m tall; young shoots pale brown, sparsely scaly. Petiole 5–12 mm, sparsely scaly; leaf blade ovate, 6–10 × 2–4.5 cm; base obtuse, rounded or broadly cuneate; apex triangular, acute, or acuminate, apiculate; abaxial surface pink green, gray-white, scales less than 1 × their own diameter apart to nearly contiguous, rarely 1 × their own diameter apart, unequal, brown or brownish red; adaxial surface densely brown scaly when young; midrib flat raised abaxially, slightly concave adaxially; lateral veins 6–8-paired, thin, inconspicuous on both sides. Inflorescence terminal, umbellate, 2–4-flowered. Flowers fragrant. Pedicel 1–2 cm, densely scaly; base gray-white-pubescent; calyx undeveloped, lobes 5, densely scaly; corolla broadly funnelform, 5-lobed to the middle, pinkish in bud, white tinged with pale red at anthesis, 5.5–7 cm, tube gray-white-pubescent, lobes rounded, densely scaly; stamens 10, unequal, half as long as corolla lobes; filaments pubescent below; ovary 6-locular, densely scaly; style as long as corolla, basal part scaly. Capsule cylindric-ovoid, ca. 15 mm, densely brown-scaly. Fl. May–Jul.
Evergreen broad-leaved forests, forests on hilltops, open slopes, rocks; 2000–3000 m. Yunnan [NE Myanmar].
（责任编辑：徐晔春）
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