腺果杜鹃Rhododendron davidii Franch.
腺果杜鹃Rhododendron davidii Franch.
26．腺果杜鹃（中国高等植物图鉴）图版12：1-4
Rhododendron davidii Franch. in Bull. Soc. Bot. France, 33: 230. 1886 et Pl. Davidian, 2: 85. t. 11. 1888; Hemsl. et Wils. in Kew Bull. Misc. Inform. 1910: 113. 1910; Rehd. et Will. in Sargent, Pl. Wils. 1: 543. 1913; Tagg. in Stevenson, Spec. Rhodod., 264. 1930; Fang, Icon. Pl. Omei., 1(1): Pl. 28. 1942; 中国高等植物图鉴3: 108, 图4169. 1974; Cullen et Chamb. in Not. Bot. Gard. Edinb. 37: 330. 1979; Chamb. in Not. Bot. Gard. Edinb. 39: 228. 1982; 峨眉山杜鹃花13, 图4. 1986; 中国四川杜鹃花36-37. 1986; 云南植物志4: 367. 1986.
常绿灌木或小乔木，高1.5-5米，稀达8米；树皮黄褐色；幼枝绿色，无毛，老枝灰色，顶生冬芽卵形，长约8毫米，无毛，叶厚革质，常集生枝顶，长圆状倒披针形或倒披针形，长10-16厘米，宽2-4.5厘米，先端急尖或突然渐尖，多少呈喙状，基部楔形，边缘反卷，上面深绿色，下面苍白色，无毛，中脉在上面凹下，下面凸出，侧脉12-17对；叶柄长1.5-2厘米，红色，无毛。顶生伸长的总状花序，有花6-12朵；总轴长3-6厘米，疏生短柄腺体及白色微柔毛；花梗红色，长约1厘米，密被短柄腺体；花萼小，长1-1.5毫米，外面具短柄腺体，裂片6，齿状或宽圆形；花冠阔钟形，长3.5-4.5厘米，玫瑰红色或紫红色，有时外面略具腺体，裂片7-8，卵形至圆形，不等长，长1.5厘米，宽约2厘米，有微缺刻，上面1片最大，有紫色斑点；雄蕊13-15，不等长，长3-4.5厘米，花丝白色，无毛，花药长圆状椭圆形，褐色，长2-3毫米；子房圆锥形，绿色，长4-5毫米，密被短柄腺体，花柱白色或带红色，长4-4.5厘米，无毛或在基部有少数短柄腺体，柱头小，头状，宽约3毫米。蒴果短圆柱形，褐色，长1.8-2厘米，有肋纹及残存的腺体痕迹。花期4-5月，果期7-8月。
产四川西部及云南东北部。生于海拔1 750-2 360米的森林中。模式标本采自四川宝兴。
《Flora of China》 Vol. 14 (2005)
Rhododendron davidii Franchet
腺果杜鹃 xian guo du juan
Shrubs or small trees, 1.5–5(–8) m tall; young shoots green, glabrous. Petiole pale pink, 15–20 mm, glabrous; leaf blade thickly leathery, oblong-oblanceolate to oblanceolate, 10–16 × 2–4.5 cm; base cuneate; margin revolute; apex acute to acuminate; both surfaces glabrous; abaxial surface pale green; adaxial surface darker; midrib prominent abaxially, grooved adaxially, lateral veins 12–17-paired, veins evident abaxially, slightly impressed adaxially. Inflorescence 6–12-flowered; rachis 30–60 mm, glandular and tomentose. Pedicel ca. 1 cm, glandular-hairy; calyx lobes 6, 1–1.5 mm, glandular-hairy outside; corolla open-campanulate, pink to rose-purple, with dark purple flecks, 3.5–4.5 cm, glabrous within, sparsely glandular outside; lobes 7 or 8, ovate to orbicular, ca. 1.5 × 2 cm, crenulate, slightly emarginate; stamens 14–15, 3–4.5 cm; filaments glabrous; ovary conoid, 4–5 mm, densely glandular-hairy; style 4–4.5 cm, glabrous or with a few glands at base; stigma capitate, small. Capsule cylindric, 18–20 mm. Fl. Apr–May, fr. Jul–Aug.
Evergreen forests; 1700–2400 m. W Sichuan, NE Yunnan.
别名：
科名：杜鹃花科 Ericaceae
属名：杜鹃属 Rhododendron
26．腺果杜鹃（中国高等植物图鉴）图版12：1-4
Rhododendron davidii Franch. in Bull. Soc. Bot. France, 33: 230. 1886 et Pl. Davidian, 2: 85. t. 11. 1888; Hemsl. et Wils. in Kew Bull. Misc. Inform. 1910: 113. 1910; Rehd. et Will. in Sargent, Pl. Wils. 1: 543. 1913; Tagg. in Stevenson, Spec. Rhodod., 264. 1930; Fang, Icon. Pl. Omei., 1(1): Pl. 28. 1942; 中国高等植物图鉴3: 108, 图4169. 1974; Cullen et Chamb. in Not. Bot. Gard. Edinb. 37: 330. 1979; Chamb. in Not. Bot. Gard. Edinb. 39: 228. 1982; 峨眉山杜鹃花13, 图4. 1986; 中国四川杜鹃花36-37. 1986; 云南植物志4: 367. 1986.
常绿灌木或小乔木，高1.5-5米，稀达8米；树皮黄褐色；幼枝绿色，无毛，老枝灰色，顶生冬芽卵形，长约8毫米，无毛，叶厚革质，常集生枝顶，长圆状倒披针形或倒披针形，长10-16厘米，宽2-4.5厘米，先端急尖或突然渐尖，多少呈喙状，基部楔形，边缘反卷，上面深绿色，下面苍白色，无毛，中脉在上面凹下，下面凸出，侧脉12-17对；叶柄长1.5-2厘米，红色，无毛。顶生伸长的总状花序，有花6-12朵；总轴长3-6厘米，疏生短柄腺体及白色微柔毛；花梗红色，长约1厘米，密被短柄腺体；花萼小，长1-1.5毫米，外面具短柄腺体，裂片6，齿状或宽圆形；花冠阔钟形，长3.5-4.5厘米，玫瑰红色或紫红色，有时外面略具腺体，裂片7-8，卵形至圆形，不等长，长1.5厘米，宽约2厘米，有微缺刻，上面1片最大，有紫色斑点；雄蕊13-15，不等长，长3-4.5厘米，花丝白色，无毛，花药长圆状椭圆形，褐色，长2-3毫米；子房圆锥形，绿色，长4-5毫米，密被短柄腺体，花柱白色或带红色，长4-4.5厘米，无毛或在基部有少数短柄腺体，柱头小，头状，宽约3毫米。蒴果短圆柱形，褐色，长1.8-2厘米，有肋纹及残存的腺体痕迹。花期4-5月，果期7-8月。
产四川西部及云南东北部。生于海拔1 750-2 360米的森林中。模式标本采自四川宝兴。
《Flora of China》 Vol. 14 (2005)
Rhododendron davidii Franchet
腺果杜鹃 xian guo du juan
Shrubs or small trees, 1.5–5(–8) m tall; young shoots green, glabrous. Petiole pale pink, 15–20 mm, glabrous; leaf blade thickly leathery, oblong-oblanceolate to oblanceolate, 10–16 × 2–4.5 cm; base cuneate; margin revolute; apex acute to acuminate; both surfaces glabrous; abaxial surface pale green; adaxial surface darker; midrib prominent abaxially, grooved adaxially, lateral veins 12–17-paired, veins evident abaxially, slightly impressed adaxially. Inflorescence 6–12-flowered; rachis 30–60 mm, glandular and tomentose. Pedicel ca. 1 cm, glandular-hairy; calyx lobes 6, 1–1.5 mm, glandular-hairy outside; corolla open-campanulate, pink to rose-purple, with dark purple flecks, 3.5–4.5 cm, glabrous within, sparsely glandular outside; lobes 7 or 8, ovate to orbicular, ca. 1.5 × 2 cm, crenulate, slightly emarginate; stamens 14–15, 3–4.5 cm; filaments glabrous; ovary conoid, 4–5 mm, densely glandular-hairy; style 4–4.5 cm, glabrous or with a few glands at base; stigma capitate, small. Capsule cylindric, 18–20 mm. Fl. Apr–May, fr. Jul–Aug.
Evergreen forests; 1700–2400 m. W Sichuan, NE Yunnan.