钩状石斛 Dendrobium aduncum
中文名（Chinese Name）：钩状石斛
学名（Scientific Name）：Dendrobium aduncum Lindl.
英文名（English Common Name）：
别名（Chinese Common Name）：
异名（Synonym）：Dendrobium faulhaberianum Schltr. Dendrobium aduncum var. faulhaberianum (Schltr.) T. Tang et F. T. Wang Callista adunca (Lindl.) Kuntze Dendrobium oxyanthum Gagnep.
科属（Family & Genus）：兰科（Orchidaceae）石斛属
形态特征（Description）：茎下垂，圆柱形，长50-100厘米，粗2-5毫米，有时上部多少弯曲，不分枝，具多个节，节间长3-3.5厘米，干后淡黄色。叶长圆形或狭椭圆形，长7-10.5厘米，宽1-3.5厘米，先端急尖并且钩转，基部具抱茎的鞘。总状花序通常数个，出自落了叶或具叶的老茎上部，花序轴纤细，长1.5-4厘米，多少回折状弯曲，疏生1-6朵花；花序柄长5-10毫米，基部被3-4枚长2-3毫米的膜质鞘；花苞片膜质，卵状披针形，长5-7毫米，先端急尖；花梗和子房长约1.5厘米；花开展，萼片和花瓣淡粉红色；中萼片长圆状披针形，长1.6-2厘米，宽7毫米，先端锐尖，具5条脉；侧萼片斜卵状三角形，与中萼片等长而宽得多，先端急尖，具5条脉，基部歪斜；萼囊明显坛状，长约1厘米；花瓣长圆形，长1.4-1.8厘米，宽7毫米，先端急尖，具5条脉；唇瓣白色，朝上，凹陷呈舟状，展开时为宽卵形，长1.5-1.7厘米，前部骤然收狭而先端为短尾状并且反卷，基部具长约5毫米的爪，上面除爪和唇盘两侧外密布白色短毛，近基部具1个绿色方形的胼胝体；蕊柱白色，长约4毫米，下部扩大，顶端两侧具耳状的蕊柱齿，正面密布紫色长毛；蕊柱足长而宽，长约1厘米，向前弯曲，末端与唇瓣相连接处具1个关节，内面有时疏生毛；药帽深紫色，近半球形，密布乳突状毛，顶端稍凹的，前端边缘具不整齐的齿。花期5-6月。
分布（Distribution）：产湖南、广东、香港、海南、广西、贵州、云南等地，生于海拔700～1000米的山地林中树干上，东南亚也有。
用途（Use）：
引自中国植物志英文版：FOC Vol. 25 Page 370, 389
Dendrobium aduncum Wallich ex Lindley, Edwards’s Bot. Reg. 28(Misc.): 58. 1842.
钩状石斛 gou zhuang shi hu| Orchidaceae | Dendrobium
Callista adunca (Wallich ex Lindley) Kuntze; Dendrobium aduncum var. faulhaberianum (Schlechter) Tang & F. T. Wang; D. faulhaberianum Schlechter.
Stems pendulous, sometimes upper part ± curved, pale yellow when dry, cylindric, 50-100 cm, 2-5 mm in diam., unbranched, with many nodes, internodes 3-3.5 cm. Leaves oblong or narrowly elliptic, 7-10.5 × 1-3.5 cm, with clasping sheaths at base, apex acute. Inflorescences often several, arising from upper part of deciduous or leafy old stem; rachis ± porrect, 1.5-4 cm, slender, sparsely 1-6-flowered; peduncle 5-10 mm, base with 3 or 4 membranous sheaths 2-3 mm; floral bracts ovate-lanceolate, 5-7 mm, membranous, acute. Pedicel and ovary ca. 1.5 cm. Flowers spreading; sepals and petals pale pink, lip white, callus green, column white, anther cap deep purple. Dorsal sepal oblong-lanceolate, 16-20 × ca. 7 mm, 5-veined, apex acute; lateral sepals obliquely ovate-triangular, ca. as long as or slightly broader than dorsal sepal, 5-veined, apex acute; mentum jarlike, ca. 1 cm. Petals oblong, 14-18 × ca. 7 mm, 5-veined, apex acute; lip concave, cymbiform, broadly ovate when spread, 15-17 mm, claw ca. 5 mm, adaxially densely white barbellate except for claw and both sides of disk, with a square callus near base, apex abruptly contracted, recurved-caudate. Column ca. 4 mm, lower part enlarged, apex with auriculate column teeth on both sides, front densely purple crinite, foot ca. 1 cm long and wide, bent forward, inner surface sometimes sparsely hairy; anther cap nearly subglobose, densely papillate-hairy, front margin irregularly dentate, apex slightly concave.
Epiphytic on tree trunks in mountain forests; 700-1000 m. Guangdong, Guangxi, SW Guizhou, SE Hainan, NE Hunan (Taoyuan), SE Yunnan (Maguan) [Bhutan, NE India, Myanmar, Thailand, Vietnam].
（责任编辑：徐晔春）
学名（Scientific Name）：Dendrobium aduncum Lindl.
英文名（English Common Name）：
别名（Chinese Common Name）：
异名（Synonym）：Dendrobium faulhaberianum Schltr. Dendrobium aduncum var. faulhaberianum (Schltr.) T. Tang et F. T. Wang Callista adunca (Lindl.) Kuntze Dendrobium oxyanthum Gagnep.
科属（Family & Genus）：兰科（Orchidaceae）石斛属
形态特征（Description）：茎下垂，圆柱形，长50-100厘米，粗2-5毫米，有时上部多少弯曲，不分枝，具多个节，节间长3-3.5厘米，干后淡黄色。叶长圆形或狭椭圆形，长7-10.5厘米，宽1-3.5厘米，先端急尖并且钩转，基部具抱茎的鞘。总状花序通常数个，出自落了叶或具叶的老茎上部，花序轴纤细，长1.5-4厘米，多少回折状弯曲，疏生1-6朵花；花序柄长5-10毫米，基部被3-4枚长2-3毫米的膜质鞘；花苞片膜质，卵状披针形，长5-7毫米，先端急尖；花梗和子房长约1.5厘米；花开展，萼片和花瓣淡粉红色；中萼片长圆状披针形，长1.6-2厘米，宽7毫米，先端锐尖，具5条脉；侧萼片斜卵状三角形，与中萼片等长而宽得多，先端急尖，具5条脉，基部歪斜；萼囊明显坛状，长约1厘米；花瓣长圆形，长1.4-1.8厘米，宽7毫米，先端急尖，具5条脉；唇瓣白色，朝上，凹陷呈舟状，展开时为宽卵形，长1.5-1.7厘米，前部骤然收狭而先端为短尾状并且反卷，基部具长约5毫米的爪，上面除爪和唇盘两侧外密布白色短毛，近基部具1个绿色方形的胼胝体；蕊柱白色，长约4毫米，下部扩大，顶端两侧具耳状的蕊柱齿，正面密布紫色长毛；蕊柱足长而宽，长约1厘米，向前弯曲，末端与唇瓣相连接处具1个关节，内面有时疏生毛；药帽深紫色，近半球形，密布乳突状毛，顶端稍凹的，前端边缘具不整齐的齿。花期5-6月。
分布（Distribution）：产湖南、广东、香港、海南、广西、贵州、云南等地，生于海拔700～1000米的山地林中树干上，东南亚也有。
用途（Use）：
引自中国植物志英文版：FOC Vol. 25 Page 370, 389
Dendrobium aduncum Wallich ex Lindley, Edwards’s Bot. Reg. 28(Misc.): 58. 1842.
钩状石斛 gou zhuang shi hu| Orchidaceae | Dendrobium
Callista adunca (Wallich ex Lindley) Kuntze; Dendrobium aduncum var. faulhaberianum (Schlechter) Tang & F. T. Wang; D. faulhaberianum Schlechter.
Stems pendulous, sometimes upper part ± curved, pale yellow when dry, cylindric, 50-100 cm, 2-5 mm in diam., unbranched, with many nodes, internodes 3-3.5 cm. Leaves oblong or narrowly elliptic, 7-10.5 × 1-3.5 cm, with clasping sheaths at base, apex acute. Inflorescences often several, arising from upper part of deciduous or leafy old stem; rachis ± porrect, 1.5-4 cm, slender, sparsely 1-6-flowered; peduncle 5-10 mm, base with 3 or 4 membranous sheaths 2-3 mm; floral bracts ovate-lanceolate, 5-7 mm, membranous, acute. Pedicel and ovary ca. 1.5 cm. Flowers spreading; sepals and petals pale pink, lip white, callus green, column white, anther cap deep purple. Dorsal sepal oblong-lanceolate, 16-20 × ca. 7 mm, 5-veined, apex acute; lateral sepals obliquely ovate-triangular, ca. as long as or slightly broader than dorsal sepal, 5-veined, apex acute; mentum jarlike, ca. 1 cm. Petals oblong, 14-18 × ca. 7 mm, 5-veined, apex acute; lip concave, cymbiform, broadly ovate when spread, 15-17 mm, claw ca. 5 mm, adaxially densely white barbellate except for claw and both sides of disk, with a square callus near base, apex abruptly contracted, recurved-caudate. Column ca. 4 mm, lower part enlarged, apex with auriculate column teeth on both sides, front densely purple crinite, foot ca. 1 cm long and wide, bent forward, inner surface sometimes sparsely hairy; anther cap nearly subglobose, densely papillate-hairy, front margin irregularly dentate, apex slightly concave.
Epiphytic on tree trunks in mountain forests; 700-1000 m. Guangdong, Guangxi, SW Guizhou, SE Hainan, NE Hunan (Taoyuan), SE Yunnan (Maguan) [Bhutan, NE India, Myanmar, Thailand, Vietnam].
（责任编辑：徐晔春）踩一下[0]
顶一下[4]