云上杜鹃Rhododendron pachypodum
中文名（Chinese Name）：云上杜鹃
学名（Scientific Name）：Rhododendron pachypodum Balf. f. et W. W. Smith
英文名（English Common Name）：
别名（Chinese Common Name）：白豆花、波瓣杜鹃
异名（Synonym）：Rhododendron scottianum Hutch. Rhododendron rufosquamosum Hutch. Rhododendron supranubium Hutch. Rhododendron pilicalyx Hutch.
科属（Family & Genus）：杜鹃花科（Ericaceae）杜鹃属
形态特征（Description）：灌木，偶见附生，高1-4米，稀为小乔木，高3-5米。幼枝密被褐色鳞片，无毛。叶椭圆形、长椭圆状披针形、倒卵形，革质，长6-11厘米，宽2-5厘米，顶端渐尖或骤尖，基部渐狭，有时幼叶边缘疏生长睫毛，上面疏生鳞片后渐脱落，下面带灰白色，密被褐色或红褐色大小不等的鳞片，相距小于直径或近于邻接，偶而相距为其直径，中脉在上面下陷，在下面凸起，侧脉纤细；叶柄长0.6-1.6厘米，密被鳞片，有时疏生长纤毛。花序顶生，2-4花伞形着生，通常3花；花梗长0.5-1厘米，密被鳞片；花萼不发育，被鳞片，具5个短浅的圆裂片或略呈三角形的裂片，长约1毫米，偶而出现一片特长的，长可达1.6厘米的线形裂片，边缘具长睫毛；花冠宽漏斗状，长5-7厘米，白色，外面带淡红色晕，内面有一淡黄色斑块，外面密被鳞片，筒部外面通常被灰白色微柔毛；雄蕊10，不等长，长雄蕊长达花冠裂片的中部，花丝下部被柔毛；子房6室，稀5室，密被鳞片，花柱稀长于花冠，下部被鳞片。蒴果卵形或长圆状卵形，长1.5-2.5厘米，基部托以宿萼。花期4-5月，滇东南花期在3月。
分布（Distribution）：产云南大部分地区。生于海拔1200-3100米干燥山坡灌丛或山坡杂木林下、石山阳处。
用途（Use）：
引自中国植物志英文版FOC Vol. 14 Page 271
Rhododendron pachypodum I. B. Balfour & W. W. Smith, Notes Roy. Bot. Gard. Edinburgh. 9: 254. 1916.
云上杜鹃 yun shang du juan | Apiaceae | Rhododendron
Rhododendron pilicalyx Hutchinson; R. rufosquamosum Hutchinson; R. scottianum Hutchinson, nom. illeg. superfl.; R. supranubium Hutchinson.
Shrubs, rarely small trees, rarely epiphytic, 1–4(–5) m tall; young shoots densely brown-scaly, otherwise glabrous. Petiole 6–16 mm, densely scaly, sometimes long-villous; leaf blade leathery, elliptic, elliptic-lanceolate or obovate, 6–11 × 2–5 cm; base narrower; apex acuminate or acute; abaxial surface gray white, scales less than 1 × their own diameter apart to nearly contiguous, sometimes 1 × their own diameter apart, brown or brownish red; adaxial surface sparsely scaly; midrib and lateral veins raised abaxially, concave adaxially; lateral veins thin. Inflorescence terminal, umbellate, (2–)3(–4)-flowered. Pedicel 0.5–1 cm, densely scaly; calyx undeveloped, 5-lobed; lobes ca. 1 mm, rounded or triangular, persistent in fruit, scaly; corolla broadly funnelform, white tinged with pale red, inside with pale yellow markings, 5–7 cm, densely scaly, tube gray-white-pubescent outside; stamens 10, unequal, long ones half as long as corolla lobes; filaments pubescent below; ovary (5 or)6-locular, densely scaly; style rarely longer than corolla, basal part scaly. Capsule ovoid or cylindric-ovoid, 15–25 mm. Fl. Mar–May.
Mixed forests, thickets, open areas on rocky mountains, dry slopes; 1200–2800(–3100) m. Yunnan [NE Myanmar].
Cullen (Notes Roy. Bot. Gard. Edinburgh 39: 47, 53. 1980) maintained Rhododendron rufosquamosum as a species distinct from R. pachypodum.
（责任编辑：徐晔春）
学名（Scientific Name）：Rhododendron pachypodum Balf. f. et W. W. Smith
英文名（English Common Name）：
别名（Chinese Common Name）：白豆花、波瓣杜鹃
异名（Synonym）：Rhododendron scottianum Hutch. Rhododendron rufosquamosum Hutch. Rhododendron supranubium Hutch. Rhododendron pilicalyx Hutch.
科属（Family & Genus）：杜鹃花科（Ericaceae）杜鹃属
形态特征（Description）：灌木，偶见附生，高1-4米，稀为小乔木，高3-5米。幼枝密被褐色鳞片，无毛。叶椭圆形、长椭圆状披针形、倒卵形，革质，长6-11厘米，宽2-5厘米，顶端渐尖或骤尖，基部渐狭，有时幼叶边缘疏生长睫毛，上面疏生鳞片后渐脱落，下面带灰白色，密被褐色或红褐色大小不等的鳞片，相距小于直径或近于邻接，偶而相距为其直径，中脉在上面下陷，在下面凸起，侧脉纤细；叶柄长0.6-1.6厘米，密被鳞片，有时疏生长纤毛。花序顶生，2-4花伞形着生，通常3花；花梗长0.5-1厘米，密被鳞片；花萼不发育，被鳞片，具5个短浅的圆裂片或略呈三角形的裂片，长约1毫米，偶而出现一片特长的，长可达1.6厘米的线形裂片，边缘具长睫毛；花冠宽漏斗状，长5-7厘米，白色，外面带淡红色晕，内面有一淡黄色斑块，外面密被鳞片，筒部外面通常被灰白色微柔毛；雄蕊10，不等长，长雄蕊长达花冠裂片的中部，花丝下部被柔毛；子房6室，稀5室，密被鳞片，花柱稀长于花冠，下部被鳞片。蒴果卵形或长圆状卵形，长1.5-2.5厘米，基部托以宿萼。花期4-5月，滇东南花期在3月。
分布（Distribution）：产云南大部分地区。生于海拔1200-3100米干燥山坡灌丛或山坡杂木林下、石山阳处。
用途（Use）：
引自中国植物志英文版FOC Vol. 14 Page 271
Rhododendron pachypodum I. B. Balfour & W. W. Smith, Notes Roy. Bot. Gard. Edinburgh. 9: 254. 1916.
云上杜鹃 yun shang du juan | Apiaceae | Rhododendron
Rhododendron pilicalyx Hutchinson; R. rufosquamosum Hutchinson; R. scottianum Hutchinson, nom. illeg. superfl.; R. supranubium Hutchinson.
Shrubs, rarely small trees, rarely epiphytic, 1–4(–5) m tall; young shoots densely brown-scaly, otherwise glabrous. Petiole 6–16 mm, densely scaly, sometimes long-villous; leaf blade leathery, elliptic, elliptic-lanceolate or obovate, 6–11 × 2–5 cm; base narrower; apex acuminate or acute; abaxial surface gray white, scales less than 1 × their own diameter apart to nearly contiguous, sometimes 1 × their own diameter apart, brown or brownish red; adaxial surface sparsely scaly; midrib and lateral veins raised abaxially, concave adaxially; lateral veins thin. Inflorescence terminal, umbellate, (2–)3(–4)-flowered. Pedicel 0.5–1 cm, densely scaly; calyx undeveloped, 5-lobed; lobes ca. 1 mm, rounded or triangular, persistent in fruit, scaly; corolla broadly funnelform, white tinged with pale red, inside with pale yellow markings, 5–7 cm, densely scaly, tube gray-white-pubescent outside; stamens 10, unequal, long ones half as long as corolla lobes; filaments pubescent below; ovary (5 or)6-locular, densely scaly; style rarely longer than corolla, basal part scaly. Capsule ovoid or cylindric-ovoid, 15–25 mm. Fl. Mar–May.
Mixed forests, thickets, open areas on rocky mountains, dry slopes; 1200–2800(–3100) m. Yunnan [NE Myanmar].
Cullen (Notes Roy. Bot. Gard. Edinburgh 39: 47, 53. 1980) maintained Rhododendron rufosquamosum as a species distinct from R. pachypodum.
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