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硬刺杜鹃 yingcidujuan
Synonyms:
Rhododendron lancifolium Hook. f.

被子植物门 Angiospermae
双子叶植物纲 Dicotyledoneae
合瓣花亚纲 Sympetalae
杜鹃花目 Ericales
杜鹃花科 Ericaceae
杜鹃属 Rhododendron
相关名称 Common Names
拉丁名
Rhododendron barbatum Wall. ex G. Don
中文名
硬刺杜鹃
拼音
yingcidujuan
异名
Rhododendron lancifolium Hook. f.
文献 Literature
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描述 Description
常绿乔木,高达20米,从基部分枝;幼枝有硬而长的刺状刚毛,能经数年不落。叶革质,椭圆状披针形,长10-20厘米,宽4-7厘米,顶端急尖,有长尖头,下面初有绵毛状毛被,渐变光滑,呈淡黄绿色,中脉极隆起,近基部有长刺状刚毛;叶柄长1-1.5厘米,有同样的刚毛。顶生花序为圆而紧密的伞形,有花10-15朵,总轴无毛,花梗长1-1.5厘米,光滑;花萼大,长1-1.5厘米,无毛,裂片深红色,不规则的浅裂;花冠筒状钟形,长3.5厘米,血红色,肉质,5裂;雄蕊10,花丝白色,无毛;子房淡绿白色,密生有柄腺体,花柱白色,无毛。蒴果长2-2.5厘米,粗6毫米,有刚毛。 产西藏南部;锡金,尼泊尔也有。
中国高等植物图鉴

203. 硬刺杜鹃(中国高等植物图鉴)图版88: 5-10

Rhododendron barbatum Wall. ex G. Don, Gen. Hist. 3: 844. 1834; Hook. f. in Rhodod. Sikkim Himal. t. 3. 1849; Tagg in Stevenson, Spec. Rhodod. 129. t. 128. 1930; 中国高等植物图鉴3: 83, 图4119. 1974; Cullen et Chamb. in Not. Bot. Gard. Edinb. 36: 115. 1978; Chamb. in Not. Bot. Gard. Edinb. 39: 380. 1982;西藏植物志3: 572, 图231: 1-4. 1986. ——R. lancifolium Hook. f. in Rhodod. Sikkim Himal. t. 4. 1849.

常绿大灌木或小乔木,高1.5-8米;幼枝具有硬的须状毛,稀无毛,老枝灰褐色,无毛。叶革质,长圆形至倒卵状长圆形,长9.8-18厘米,宽3.5-5.8厘米,先端短渐尖,基部楔形至圆形,边缘反卷,上面绿色,下面白绿色,除中脉近基部有刚毛外,其余部分幼时有微毛,中脉在上面凹下,下面凸起,侧脉17-21对;叶柄长1.2-2.2厘米,疏被黑褐色须状腺毛或无毛。花序密,有花10-20朵;总轴长5毫米,无毛;花梗长5-13毫米,无毛;花萼大,杯状,长7-15毫米,绿色带红色,无毛或基部有毛,裂片5,阔卵形或倒卵状长圆形,边缘啮蚀状;花冠肉质,管状钟形,长3.1-3.6厘米,直径3-3.6厘米,深红色至血红色,无毛,内面基部有5枚深黑红色的密腺囊,裂片5,扁圆形至圆形,长1.8厘米,宽1.6-1.8厘米,顶端有深缺刻;雄蕊10,不等长,长1.3厘米,花丝白色,无毛,花药近于椭圆形,紫黑色,长1.6-2毫米;子房圆锥形,长约5毫米,密被有柄腺体,花柱长1.6厘米,无毛,柱头小,带粉红色,宽约1.8毫米。蒴果圆柱形,微弯曲,长2-2.4厘米,有明显的肋纹及腺毛残迹,顶端花柱宿存,基部有宿存的花萼。花期5-6月,果期8-9月。

产我国西藏南部。生于海拔2 400-3500米的冷杉杜鹃林内或灌丛中。印度西北部、尼泊尔、锡金和不丹也有分布。模式标本采自尼泊尔。

知识共享:署名-非商业性使用-禁止演绎 1994《中国植物志》第57(2)卷 267页 PDF

Large shrubs or small trees, 1.5–8 m tall; old branches grayish brown, glabrous; young branches setose, rarely glabrous. Petiole 12–22 mm, sparsely blackish brown glandular-setose or glabrous; leaf blade leathery, oblong to obovate-oblong, 9.8–18 × 3.5–5.8 cm; base truncate to rounded; margin reflexed; apex acuminate; abaxial surface whitish green, midrib and base setose, other parts slightly hairy when young; adaxial surface green; midrib raised abaxially, impressed adaxially; lateral veins 17–21-paired. Inflorescence densely umbellate, 10–20-flowered; rachis ca. 5 mm, glabrous. Pedicel 0.5–1.3 cm, glabrous; calyx green flushed red, cupular; lobes 5, 7–15 mm, broadly ovate or obovate-oblong, glabrous or with base hairy; margin erose; corolla tubular-campanulate, fleshy, deep red to blood-red, 3.1–3.6 × 3–3.6 cm, with 5 deep blackish red nectar pouches at base, glabrous; lobes 5, ± rounded, ca. 1.8 × 1.6–1.8 cm, apex deeply emarginate; stamens 10, unequal, 1.3–2.1 cm, filaments white, glabrous, anthers subelliptic, purplish black, 1.6–2 mm; ovary cone-shaped, ca. 5 mm, densely short-glandular-hairy; style ca. 1.6 cm, glabrous; stigma small, reddish, ca. 1.8 mm wide. Capsule cylindric, ribs obvious, slightly curved, 20–24 mm, with vestigial glandular hairs; calyx persistent; style persistent. Fl. May–Jun, fr. Aug–Sep.

Abies forests, Rhododendron thickets; 2400–3500 m. S Xizang [Bhutan, India, Nepal, Sikkim].

知识共享:署名-非商业性使用-禁止演绎 FOC Vol.14PDF
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