锈叶杜鹃Rhododendron siderophyllum
中文名（Chinese Name）：锈叶杜鹃
学名（Scientific Name）：Rhododendron siderophyllum Franch.
英文名（English Common Name）：
别名（Chinese Common Name）：
异名（Synonym）：Rhododendron ioanthum Balf. f. Rhododendron seguinii H. Lév. Rhododendron obscurum Franch. ex I. B. Balfour Rhododendron leucandrum H. Lév. Rhododendron jahandiezii H. Lév.
科属（Family & Genus）：杜鹃花科（Ericaceae）杜鹃属
形态特征（Description）：灌木，高1-2（-4）米。幼枝褐色，密被鳞片。叶散生，叶片椭圆形或椭圆状披针形，长3-7（-11）厘米，宽1.2-3.5厘米，顶端渐尖、锐尖或近于钝形，基部楔形渐狭至钝圆，上面密被下陷的小鳞片，无毛或中脉偶有微毛，下面密被褐色鳞片，鳞片小或中等大小，等大或略不等大，下陷，相距为其直径的1/2-1（-2）倍，或相邻接；叶柄长0.5-1.5厘米，密被鳞片。花序顶生或同时腋生枝顶，短总状，3-5花；花序轴2-4毫米；花梗长0.3-1.3厘米，被鳞片；花萼不发育，环状或略呈波状5裂，密被鳞片，无缘毛或有长睫毛；花冠筒状漏斗形，较小，长1.6-3厘米，白、淡红、淡紫或偶见玫红色，内面上方通常有黄绿色、淡红色或杏黄色斑或无斑，外面无鳞片或裂片上疏生鳞片；雄蕊不等长，长雄蕊伸出花冠外，花丝基部被短柔毛或近无毛；子房5室，密被鳞片，花柱细长，洁净，稀基部有短柔毛，伸出花冠外。蒴果长圆形，长1-1.6厘米。花期3-6月。
分布（Distribution）：产四川、贵州、云南。生于海拔1200-3000米山坡灌丛、杂木林或松林。
用途（Use）：
引自中国植物志英文版FOC Vol. 14 Page 282
Rhododendron siderophyllum Franchet, J. Bot. (Morot). 12: 262. 1898.
锈叶杜鹃 xiu ye du juan | Apiaceae | Rhododendron
Rhododendron ioanthum I. B. Balfour; R. jahandiezii H. Léveillé; R. leucandrum H. Léveillé; R. obscurum Franchet ex I. B. Balfour (1922); R. rubropunctatum H. Léveillé & Vaniot (1911), not Hayata (1913), nor T. L. Ming (1984).
Shrubs, 1–2(–4) m tall; young shoots brown, densely scaly. Petiole 5–15 mm, densely scaly; leaf blade elliptic or elliptic-lanceolate, 3–7(–11) × 1.2–3.5 cm; base cuneate or rounded; apex acuminate, acute or nearly obtuse; abaxial surface scales 0.5–2 × their own diameter apart, or contiguous small to mid-sized, all similar or slightly unequal, brown, concave; adaxial surface scales dense, concave, glabrous or rarely pubescent along midrib. Inflorescence terminal or subterminal, shortly racemose, 3–5-flowered; rachis 2–4 mm. Pedicel 0.3–1.3 cm, scaly; calyx rimlike or undulate and 5-lobed, densely scaly; corolla tubular funnelform-campanulate, white, pale red, pale purple or rosy red, inside with yellowish green, pale red or pinkish spots or without spots, 1.6–3 cm, outer surface not scaly or sparsely scaly on lobes; stamens unequal, long ones longer than corolla; filaments pubescent or nearly glabrous at base; ovary 5-locular, densely scaly; style longer than corolla, usually glabrous, rarely pubescent at base. Capsule cylindric, 11–16 mm. Fl. Mar–Jun.
Mixed forests, coniferous forests on slopes, thickets; (1200–) 1800–3000 m. Guizhou, Sichuan, Yunnan.
Rhododendron seguinii H. Léveillé (Repert. Spec. Nov. Regni Veg. 13: 148. 1914) was described from Guizhou. The identity of the type specimen, J. Cavalerie 1254, is in doubt as it totally lacks leaves. However, there is indirect evidence that it is related to, or synonymous with, R. siderophyllum (see Cullen, Notes Roy. Bot. Gard. Edinburgh 39: 65, 67. 1980).
（责任编辑：徐晔春）
学名（Scientific Name）：Rhododendron siderophyllum Franch.
英文名（English Common Name）：
别名（Chinese Common Name）：
异名（Synonym）：Rhododendron ioanthum Balf. f. Rhododendron seguinii H. Lév. Rhododendron obscurum Franch. ex I. B. Balfour Rhododendron leucandrum H. Lév. Rhododendron jahandiezii H. Lév.
科属（Family & Genus）：杜鹃花科（Ericaceae）杜鹃属
形态特征（Description）：灌木，高1-2（-4）米。幼枝褐色，密被鳞片。叶散生，叶片椭圆形或椭圆状披针形，长3-7（-11）厘米，宽1.2-3.5厘米，顶端渐尖、锐尖或近于钝形，基部楔形渐狭至钝圆，上面密被下陷的小鳞片，无毛或中脉偶有微毛，下面密被褐色鳞片，鳞片小或中等大小，等大或略不等大，下陷，相距为其直径的1/2-1（-2）倍，或相邻接；叶柄长0.5-1.5厘米，密被鳞片。花序顶生或同时腋生枝顶，短总状，3-5花；花序轴2-4毫米；花梗长0.3-1.3厘米，被鳞片；花萼不发育，环状或略呈波状5裂，密被鳞片，无缘毛或有长睫毛；花冠筒状漏斗形，较小，长1.6-3厘米，白、淡红、淡紫或偶见玫红色，内面上方通常有黄绿色、淡红色或杏黄色斑或无斑，外面无鳞片或裂片上疏生鳞片；雄蕊不等长，长雄蕊伸出花冠外，花丝基部被短柔毛或近无毛；子房5室，密被鳞片，花柱细长，洁净，稀基部有短柔毛，伸出花冠外。蒴果长圆形，长1-1.6厘米。花期3-6月。
分布（Distribution）：产四川、贵州、云南。生于海拔1200-3000米山坡灌丛、杂木林或松林。
用途（Use）：
引自中国植物志英文版FOC Vol. 14 Page 282
Rhododendron siderophyllum Franchet, J. Bot. (Morot). 12: 262. 1898.
锈叶杜鹃 xiu ye du juan | Apiaceae | Rhododendron
Rhododendron ioanthum I. B. Balfour; R. jahandiezii H. Léveillé; R. leucandrum H. Léveillé; R. obscurum Franchet ex I. B. Balfour (1922); R. rubropunctatum H. Léveillé & Vaniot (1911), not Hayata (1913), nor T. L. Ming (1984).
Shrubs, 1–2(–4) m tall; young shoots brown, densely scaly. Petiole 5–15 mm, densely scaly; leaf blade elliptic or elliptic-lanceolate, 3–7(–11) × 1.2–3.5 cm; base cuneate or rounded; apex acuminate, acute or nearly obtuse; abaxial surface scales 0.5–2 × their own diameter apart, or contiguous small to mid-sized, all similar or slightly unequal, brown, concave; adaxial surface scales dense, concave, glabrous or rarely pubescent along midrib. Inflorescence terminal or subterminal, shortly racemose, 3–5-flowered; rachis 2–4 mm. Pedicel 0.3–1.3 cm, scaly; calyx rimlike or undulate and 5-lobed, densely scaly; corolla tubular funnelform-campanulate, white, pale red, pale purple or rosy red, inside with yellowish green, pale red or pinkish spots or without spots, 1.6–3 cm, outer surface not scaly or sparsely scaly on lobes; stamens unequal, long ones longer than corolla; filaments pubescent or nearly glabrous at base; ovary 5-locular, densely scaly; style longer than corolla, usually glabrous, rarely pubescent at base. Capsule cylindric, 11–16 mm. Fl. Mar–Jun.
Mixed forests, coniferous forests on slopes, thickets; (1200–) 1800–3000 m. Guizhou, Sichuan, Yunnan.
Rhododendron seguinii H. Léveillé (Repert. Spec. Nov. Regni Veg. 13: 148. 1914) was described from Guizhou. The identity of the type specimen, J. Cavalerie 1254, is in doubt as it totally lacks leaves. However, there is indirect evidence that it is related to, or synonymous with, R. siderophyllum (see Cullen, Notes Roy. Bot. Gard. Edinburgh 39: 65, 67. 1980).
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