腋花杜鹃Rhododendron racemosum
中文名（Chinese Name）：腋花杜鹃
学名（Scientific Name）：Rhododendron racemosum Franch.
英文名（English Common Name）：
别名（Chinese Common Name）：
异名（Synonym）：Rhododendron motsouense H. Lév. Rhododendron crenatum H. Lév.
科属（Family & Genus）：杜鹃花科（Ericaceae）杜鹃属
形态特征（Description）：小灌木，高0.15-2米，分枝多。幼枝短而细，被黑褐色腺鳞，无毛或有时被微柔毛。叶片多数，散生，揉之有香气，长圆形或长圆状椭圆形，长1.5-4厘米，宽0.8-1.8厘米，顶端钝圆或锐尖，具明显的小短尖头或不明显具有，基部钝圆或楔形渐狭，边缘反卷，上面密生黑色或淡褐色小鳞片，下面通常灰白色，密被褐色鳞片，鳞片中等大小，近等大，相距不超过其直径也不相邻接，侧脉在两面均不明显，网脉在上面明显或不显，在下面不明显；叶柄短，长2-4毫米，被鳞片。花序腋生枝顶或枝上部叶腋，每一花序有花2-3朵；花芽鳞多数覆瓦状排列，于花期仍不落；花梗纤细，长0.5-1厘米，密被鳞片；花萼小，环状或波状浅裂，被鳞片；花冠小，宽漏斗状，长0.9-1.4厘米，粉红色或淡紫红色，中部或中部以下分裂，裂片开展，外面疏生鳞片或无；雄蕊10，伸出花冠外，花丝基部密被开展的柔毛；子房5室，密被鳞片，花柱长于雄蕊，洁净，或有时基部有短柔毛。蒴果长圆形，长0.5-1厘米，被鳞片。花期3-5月。
分布（Distribution）：产四川、贵州、云南。生于海拔1500--3800米松林、松栎林下，灌丛草地或冷杉林缘。
用途（Use）：
引自中国植物志英文版FOC Vol. 14 Page 326
Rhododendron racemosum Franchet, Bull. Soc. Bot. France. 33: 235. 1886.
腋花杜鹃 ye hua du juan | Apiaceae | Rhododendron
Rhododendron crenatum H. Léveillé; R. motsouense H. Léveillé ["motsonense"].
Small, much-branched shrubs, 0.15–2 m tall; young branches short and slender, brown glandular scaly, otherwise glabrous or somewhat velutinous. Petiole short, 2–4 mm, scaly; leaf blade fragrant, oblong to elliptic, 1.5–4 × 0.8–1.8 cm; base cuneate or rounded; margin revolute; apex obtuse or acuminate, apiculate or not; abaxial surface usually gray-white, scales less than 1 × their own diameter apart, not contiguous, medium sized, brown; adaxial surface densely brown scaly. Inflorescence axillary or subterminal, 2- or 3-flowered; bud scales many, imbricate, persistent until flowering time. Pedicel slender, 0.5–1 cm, densely scaly; calyx discoid, slightly serrulate, minute, scaly; corolla widely funnelform, divided from below or at middle, pink or purple, 0.9–1.4 cm, outer surface sparsely scaly, lobes spreading; stamens 10, exserted, filaments pilose at base; ovary 5-locular, densely scaly; style longer than stamens, glabrous or shortly pilose at base. Capsule cylindric, 5–10 mm, scaly. Fl. Mar–May.
Pinus or Quercus forests, Abies forest margins, grasslands, usually dominant; 1500–3500(–3800) m. NW Guizhou, SW Sichuan, Yunnan.
Rhododendron ×fittianum I. B. Balfour (Notes Roy. Bot. Gard. Edinburgh 10: 108. 1917), described from Yunnan, was considered to be an obscure hybrid of R. racemosum by Cullen (Notes Roy. Bot. Gard. Edinburgh 39: 113–114. 1980).
（责任编辑：徐晔春）
学名（Scientific Name）：Rhododendron racemosum Franch.
英文名（English Common Name）：
别名（Chinese Common Name）：
异名（Synonym）：Rhododendron motsouense H. Lév. Rhododendron crenatum H. Lév.
科属（Family & Genus）：杜鹃花科（Ericaceae）杜鹃属
形态特征（Description）：小灌木，高0.15-2米，分枝多。幼枝短而细，被黑褐色腺鳞，无毛或有时被微柔毛。叶片多数，散生，揉之有香气，长圆形或长圆状椭圆形，长1.5-4厘米，宽0.8-1.8厘米，顶端钝圆或锐尖，具明显的小短尖头或不明显具有，基部钝圆或楔形渐狭，边缘反卷，上面密生黑色或淡褐色小鳞片，下面通常灰白色，密被褐色鳞片，鳞片中等大小，近等大，相距不超过其直径也不相邻接，侧脉在两面均不明显，网脉在上面明显或不显，在下面不明显；叶柄短，长2-4毫米，被鳞片。花序腋生枝顶或枝上部叶腋，每一花序有花2-3朵；花芽鳞多数覆瓦状排列，于花期仍不落；花梗纤细，长0.5-1厘米，密被鳞片；花萼小，环状或波状浅裂，被鳞片；花冠小，宽漏斗状，长0.9-1.4厘米，粉红色或淡紫红色，中部或中部以下分裂，裂片开展，外面疏生鳞片或无；雄蕊10，伸出花冠外，花丝基部密被开展的柔毛；子房5室，密被鳞片，花柱长于雄蕊，洁净，或有时基部有短柔毛。蒴果长圆形，长0.5-1厘米，被鳞片。花期3-5月。
分布（Distribution）：产四川、贵州、云南。生于海拔1500--3800米松林、松栎林下，灌丛草地或冷杉林缘。
用途（Use）：
引自中国植物志英文版FOC Vol. 14 Page 326
Rhododendron racemosum Franchet, Bull. Soc. Bot. France. 33: 235. 1886.
腋花杜鹃 ye hua du juan | Apiaceae | Rhododendron
Rhododendron crenatum H. Léveillé; R. motsouense H. Léveillé ["motsonense"].
Small, much-branched shrubs, 0.15–2 m tall; young branches short and slender, brown glandular scaly, otherwise glabrous or somewhat velutinous. Petiole short, 2–4 mm, scaly; leaf blade fragrant, oblong to elliptic, 1.5–4 × 0.8–1.8 cm; base cuneate or rounded; margin revolute; apex obtuse or acuminate, apiculate or not; abaxial surface usually gray-white, scales less than 1 × their own diameter apart, not contiguous, medium sized, brown; adaxial surface densely brown scaly. Inflorescence axillary or subterminal, 2- or 3-flowered; bud scales many, imbricate, persistent until flowering time. Pedicel slender, 0.5–1 cm, densely scaly; calyx discoid, slightly serrulate, minute, scaly; corolla widely funnelform, divided from below or at middle, pink or purple, 0.9–1.4 cm, outer surface sparsely scaly, lobes spreading; stamens 10, exserted, filaments pilose at base; ovary 5-locular, densely scaly; style longer than stamens, glabrous or shortly pilose at base. Capsule cylindric, 5–10 mm, scaly. Fl. Mar–May.
Pinus or Quercus forests, Abies forest margins, grasslands, usually dominant; 1500–3500(–3800) m. NW Guizhou, SW Sichuan, Yunnan.
Rhododendron ×fittianum I. B. Balfour (Notes Roy. Bot. Gard. Edinburgh 10: 108. 1917), described from Yunnan, was considered to be an obscure hybrid of R. racemosum by Cullen (Notes Roy. Bot. Gard. Edinburgh 39: 113–114. 1980).
（责任编辑：徐晔春）
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