毛嘴杜鹃Rhododendron trichostomum Franch.
毛嘴杜鹃Rhododendron trichostomum Franch.
166. 毛嘴杜鹃（中国高等植物图鉴）
Rhododendron trichostomum Franch. in Journ de Bot. 9: 396. 1895; Hutch. in Stevenson, Spec. Rhodod. 220. 1930; Cowan et Davidian in R. H. S. Rhodod. Year Book, 2: 82. 1947; 中国高等植物图鉴3: 75. 图4104. 1974; Cullen in Not. Bot. Gard. Edinb. 39: 168. 1980; Davi dian, Rhodod. Spec. 1: 64. t. 1. 1982; 西藏植物志3: 676. 1986; 云南植物志4: 531. 1986; 中国四川杜鹃花315. 1986; 青海木本植物志517. 图367. 1987. ——R. fragrans sensu Franch. in Bull. Soc. Bot. Franch, 34: 284. 1887, non (Adams) Maxim. ——R. sphaeranthum Balf. f. et W. W. Smith in Not. Bot. Gard. Edinb. 9: 278. 1916.
种中文名：毛嘴杜鹃
种拉丁名：Rhododendron trichostomum Franch.
种别名 ：
命名来源：(中国高等植物图鉴)[Journal de Botanique (Morot) 9(21): 396-397 1895]
中国植物志：57(1):185
亚组中文名：辐花杜鹃亚组
亚组拉丁名：Subsect．Baileya Sleurner
组中文名：髯花杜鹃组
组拉丁名：Sect．Pogonamhum G．Don
亚属中文名：杜鹃亚属
亚属拉丁名：Subgen．Rhododendron
属中文名：杜鹃属
属拉丁名：Rhododendron
亚科中文名：杜鹃花亚科
亚科拉丁名：RHODODENDROIDEAE Drude
科中文名：杜鹃花科
科拉丁名：Ericaceae
纲中文名：双子叶植物纲
纲拉丁名：DICOTYLEDONEAE
门中文名：被子植物门
门拉丁名：ANGIOSPERMAE
参考文献：Rhododendron trichostomum Franch，in．Jurn de Bot．9：396．1895；Hutch．InStevenson，Spec．Rhodod．220． 1930；Cowan d Davidian in R．H．5．Rhodod．YearBook，2：82．1947；中国高等植物图鉴3：75． 图4104．1974；Cullen in Not．Bot．Gard．Edinb．39：168．1980；Davidian，Rhodod．Spcc．1：64．T．1．1982；西藏植物志3：676．1986；云南植物志4：531．1986；中国四川杜鹃花315． 1986；青海木本植物志517．图367．1987．——R．Fragrans sensuFranch．In Bull．Soc．Bot．Franch，34：284． 1887，non (Adams) Maxim．——R．Sphaeranthum Balf．F．Et W．W．Smithin Not．Bot．Card．Edinb．9：278． 1916．
亚组概述：Subsect．Baileya Sleurner in Bot．Jahrb．74：531． 1949．——Ser．Lepidotum sensu Hutch．In Stevenson，Spec．Rhodod．437．1930，pro parte---Ser．Lepidotum subser．Baileyi Davidian，Rhodod．Spec．1：218．1982．常绿小灌木。叶下面密被鳞片，鳞片一式大小，片状，相重叠，边缘有细钝齿。花 序顶生，短总状，有花5—10(--18)朵；花梗细长，长于花冠；花冠辐状；雄蕊10， 花丝被毛；子房5室，密被鳞片，花柱短而粗，强度弯弓。蒴果小，种子无翅、被不明 显的鳍纹。 亚组的模式种：辐花杜鹃Rhododendron baileyi Balf．F. 本亚组仅1种，产东喜马拉雅山区。
《Flora of China》 Vol. 14 (2005)
Rhododendron trichostomum Franchet
毛嘴杜鹃 mao zui du juan
Small, intricately branched shrubs, 0.3–1(–1.5) m tall; branchlets twiggy, densely scaly, setose; bud scales deciduous, rarely persistent. Petiole 2–4 mm, scaly; leaf blade aromatic, linear, linear-lanceolate, oblong or oblanceolate, 0.8–3.2 × 0.3–0.5(–0.8) cm; base rounded to tapering; margin revolute; apex acute or obtuse, mucronate or emarginate; abaxial surface scales overlapping, pale yellowish brown to brown, arranged in 2–3 tiers, the lowermost tier golden, paler than others, rarely somewhat; adaxial surface dark green, scaly or not. Inflorescence 6–10(–20)-flowered. Pedicel (0.1–)0.2–0.5 cm, scaly; calyx lobes 0.5–2(–3) mm, oblong to ovate, persistent, scaly or not, margin usually scaly, ciliate; corolla narrowly tubular, white, pink or rose, 0.8–1.6(–2) cm, tube 4.5–8(–12) mm, outer surface densely scaly or not scaly, throat densely pilose; lobes with a few scales but no hairs; stamens 5, included in corolla tube, filaments glabrous; ovary ca. 1 mm, scaly; style turbinate, shorter than or equal to ovary. Capsule ovate to cylindric, 3–5 mm, densely scaly. Fl. May–Jul, fr. Aug–Sep.
Forests, thickets, scrub, rocky alpine meadows, open slopes, rocks; 2700–4600 m. S Qinghai, W Sichuan, SE Xizang, NW Yunnan.
Rhododendron hedyosmum I. B. Balfour (Notes Roy. Bot. Gard. Edinburgh 9: 234. 1916) was described from cultivated material derived from seed collected in Sichuan. Known only in cultivation, it is a large-flowered variant, and probably a hybrid, of R. trichostomum.
别名：毛咀杜鹃;
科名：杜鹃花科 Ericaceae
属名：杜鹃属 Rhododendron
166. 毛嘴杜鹃（中国高等植物图鉴）
Rhododendron trichostomum Franch. in Journ de Bot. 9: 396. 1895; Hutch. in Stevenson, Spec. Rhodod. 220. 1930; Cowan et Davidian in R. H. S. Rhodod. Year Book, 2: 82. 1947; 中国高等植物图鉴3: 75. 图4104. 1974; Cullen in Not. Bot. Gard. Edinb. 39: 168. 1980; Davi dian, Rhodod. Spec. 1: 64. t. 1. 1982; 西藏植物志3: 676. 1986; 云南植物志4: 531. 1986; 中国四川杜鹃花315. 1986; 青海木本植物志517. 图367. 1987. ——R. fragrans sensu Franch. in Bull. Soc. Bot. Franch, 34: 284. 1887, non (Adams) Maxim. ——R. sphaeranthum Balf. f. et W. W. Smith in Not. Bot. Gard. Edinb. 9: 278. 1916.
种中文名：毛嘴杜鹃
种拉丁名：Rhododendron trichostomum Franch.
种别名 ：
命名来源：(中国高等植物图鉴)[Journal de Botanique (Morot) 9(21): 396-397 1895]
中国植物志：57(1):185
亚组中文名：辐花杜鹃亚组
亚组拉丁名：Subsect．Baileya Sleurner
组中文名：髯花杜鹃组
组拉丁名：Sect．Pogonamhum G．Don
亚属中文名：杜鹃亚属
亚属拉丁名：Subgen．Rhododendron
属中文名：杜鹃属
属拉丁名：Rhododendron
亚科中文名：杜鹃花亚科
亚科拉丁名：RHODODENDROIDEAE Drude
科中文名：杜鹃花科
科拉丁名：Ericaceae
纲中文名：双子叶植物纲
纲拉丁名：DICOTYLEDONEAE
门中文名：被子植物门
门拉丁名：ANGIOSPERMAE
参考文献：Rhododendron trichostomum Franch，in．Jurn de Bot．9：396．1895；Hutch．InStevenson，Spec．Rhodod．220． 1930；Cowan d Davidian in R．H．5．Rhodod．YearBook，2：82．1947；中国高等植物图鉴3：75． 图4104．1974；Cullen in Not．Bot．Gard．Edinb．39：168．1980；Davidian，Rhodod．Spcc．1：64．T．1．1982；西藏植物志3：676．1986；云南植物志4：531．1986；中国四川杜鹃花315． 1986；青海木本植物志517．图367．1987．——R．Fragrans sensuFranch．In Bull．Soc．Bot．Franch，34：284． 1887，non (Adams) Maxim．——R．Sphaeranthum Balf．F．Et W．W．Smithin Not．Bot．Card．Edinb．9：278． 1916．
亚组概述：Subsect．Baileya Sleurner in Bot．Jahrb．74：531． 1949．——Ser．Lepidotum sensu Hutch．In Stevenson，Spec．Rhodod．437．1930，pro parte---Ser．Lepidotum subser．Baileyi Davidian，Rhodod．Spec．1：218．1982．常绿小灌木。叶下面密被鳞片，鳞片一式大小，片状，相重叠，边缘有细钝齿。花 序顶生，短总状，有花5—10(--18)朵；花梗细长，长于花冠；花冠辐状；雄蕊10， 花丝被毛；子房5室，密被鳞片，花柱短而粗，强度弯弓。蒴果小，种子无翅、被不明 显的鳍纹。 亚组的模式种：辐花杜鹃Rhododendron baileyi Balf．F. 本亚组仅1种，产东喜马拉雅山区。
《Flora of China》 Vol. 14 (2005)
Rhododendron trichostomum Franchet
毛嘴杜鹃 mao zui du juan
Small, intricately branched shrubs, 0.3–1(–1.5) m tall; branchlets twiggy, densely scaly, setose; bud scales deciduous, rarely persistent. Petiole 2–4 mm, scaly; leaf blade aromatic, linear, linear-lanceolate, oblong or oblanceolate, 0.8–3.2 × 0.3–0.5(–0.8) cm; base rounded to tapering; margin revolute; apex acute or obtuse, mucronate or emarginate; abaxial surface scales overlapping, pale yellowish brown to brown, arranged in 2–3 tiers, the lowermost tier golden, paler than others, rarely somewhat; adaxial surface dark green, scaly or not. Inflorescence 6–10(–20)-flowered. Pedicel (0.1–)0.2–0.5 cm, scaly; calyx lobes 0.5–2(–3) mm, oblong to ovate, persistent, scaly or not, margin usually scaly, ciliate; corolla narrowly tubular, white, pink or rose, 0.8–1.6(–2) cm, tube 4.5–8(–12) mm, outer surface densely scaly or not scaly, throat densely pilose; lobes with a few scales but no hairs; stamens 5, included in corolla tube, filaments glabrous; ovary ca. 1 mm, scaly; style turbinate, shorter than or equal to ovary. Capsule ovate to cylindric, 3–5 mm, densely scaly. Fl. May–Jul, fr. Aug–Sep.
Forests, thickets, scrub, rocky alpine meadows, open slopes, rocks; 2700–4600 m. S Qinghai, W Sichuan, SE Xizang, NW Yunnan.
Rhododendron hedyosmum I. B. Balfour (Notes Roy. Bot. Gard. Edinburgh 9: 234. 1916) was described from cultivated material derived from seed collected in Sichuan. Known only in cultivation, it is a large-flowered variant, and probably a hybrid, of R. trichostomum.