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芳香石豆兰 Bulbophyllum ambrosia

时间:2013-10-23 20:49来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ):芳香石豆兰 学名( Scientific Name ): Bulbophyllum ambrosia (Hance) Schltr. 英文名( English Common Name ): 别名( Chinese Common Name ): 异名( Synonym ): Bulbophyllum watsonianum Rchb. f. Eria ambrosia Ha
中文名(Chinese Name):芳香石豆兰
学名(Scientific Name):Bulbophyllum ambrosia (Hance) Schltr.
英文名(English Common Name):
别名(Chinese Common Name):
异名(Synonym):Bulbophyllum watsonianum Rchb. f.  Eria ambrosia Hance 
科属(Family & Genus):兰科(Orchidaceae)石豆兰属
形态特征(Description):根状茎粗2-3毫米,被覆瓦状鳞片状鞘,每相距3-9厘米生1个假鳞茎。根成束从假鳞茎基部长出。假鳞茎直立或稍弧曲上举,圆柱形,长2-6厘米,粗3-8毫米,顶生1枚叶,基部被鞘腐烂后残留的纤维,干后古铜色,具光泽。叶革质,长圆形,长3.5-13厘米,宽1.2-2.2厘米,先端钝并且稍凹入,基部骤然收窄为长3-7毫米的柄。花葶出自假鳞茎基部,1-3个,圆柱形,直立,连同花梗和子房长4-7厘米,顶生1朵花;花序柄长6-8毫米,粗约1毫米,基部具2-4枚紧抱于花序柄的干膜质鞘;花梗和子房长1-1.4厘米;花苞片膜质,卵形,长约3毫米;花多少点垂,淡黄色带紫色;中萼片近长圆形,长约1厘米,中部宽5毫米,先端急尖或锐尖,具5条脉,无毛,边缘全缘;侧萼片斜卵状三角形,与中萼片近等长,中部宽6毫米,中部以上偏侧而扭曲呈喙状,先端稍钝,基部贴生于蕊柱足而形成宽钝的萼囊,具5条脉;花瓣三角形,长约6毫米,中部宽3毫米,先端急尖,具3条脉,边缘全缘;唇瓣近卵形,中部以下对折,基部具凹槽,与蕊柱足末端连接而形成活动关节,中部两侧扩展,边缘稍波状,先端稍增厚,上面具1-2条肉质褶片;蕊柱粗短,蕊柱齿不明显;蕊柱足长10毫米,其分离部分长约5毫米。花期通常2-5月。
分布(Distribution):产福建、广东、海南、香港、广西、云南。生于海拔达1300米的山地林中树干上。越南也有。
用途(Use):
引自中国植物志英文版:FOC Vol. 25 Page 406, 407   
Bulbophyllum ambrosia (Hance) Schlechter, Repert. Spec. Nov. Regni Veg. Beih. 4: 247. 1919.
芳香石豆兰 fang xiang shi dou lan| Orchidaceae  | Bulbophyllum
Roots below pseudobulbs only. Rhizome 0.8-3 mm in diam., sections between pseudobulbs 3.5-8 cm, bract fibers moderately persistent. Pseudobulbs distant, narrowly ellipsoid or obovoid to cylindric, somewhat flattened or not, 1.8-5 × 0.5-0.9 cm. Petiole 0.3-0.9 cm; leaf blade elliptic, 3-9 × 0.8-2.1 cm, rounded to obtuse. Inflorescence erect to spreading, 3-11 cm, 1-flowered, rarely a subumbellate raceme, 2-flowered; peduncle 1.7-8 cm; bracts 3 or 4, longest 3-10 mm; rachis to 0.5 cm; floral bracts ovate, 2.5-5 × 1.5-4 mm, acute. Flowers resupinate, moderately to widely, and simultaneously opening. Pedicel and ovary 8-18 mm. Dorsal sepal recurved, (ovate or) triangular, 9-14 × 6-9 mm, thin, glabrous, base narrowly attached, margin entire, apex acute to acuminate; lateral sepals free, oblique, elliptic to ovate including a winglike, sometimes antrorse widening along lower margin, or triangular, 10-14 × 7-11 mm, base rather broadly attached, otherwise as dorsal sepal. Petals recurved, triangular with lower margin decurrent along column foot, 5-8 × 2.2-4 mm, thin, glabrous, base broadly attached, margins entire, apex acute to acuminate; lip ± reflexed slightly over 1/2 its length, ± elliptic in general outline, 5.5-8 × 5-6 mm (all without artificial spreading), very thick; abaxially with a weak retuse median ridge toward base, surface glabrous; adaxially concave and with a median slit with slightly thickened margins toward base, convex but deeply furrowed toward tip, surface slightly rugose toward tip, apex rounded to apiculate. Column 1.8-3.2 mm, stigma inside without keels, at its base without teeth, column foot without tooth just above ligament; stelidia deltoid to triangular, 0.3-0.8 mm, acute with a minute tooth along upper margin, close to tip, or minutely bifurcate; anther abaxially ± glabrous and with a low, rounded crest; front margin not drawn out, slightly erose.
Epiphytic or lithophytic in forests, thickets, and on various bedrock types including limestone; 600-1500 m. Fujian, S Guangdong, W Guangxi, Hainan, Yunnan [Nepal, Vietnam].


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