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二色金石斛Flickingeria bicolor

时间:2013-10-23 21:01来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ):二色金石斛 学名( Scientific Name ): Flickingeria bicolor Z. H. Tsi et S. C. Chen 英文名( English Common Name ): 别名( Chinese Common Name ): 异名( Synonym ): 科属( Family Genus ): 兰科(Orchidaceae
中文名(Chinese Name):二色金石斛
学名(Scientific Name):Flickingeria bicolor Z. H. Tsi et S. C. Chen
英文名(English Common Name):
别名(Chinese Common Name):
异名(Synonym):
科属(Family & Genus):兰科(Orchidaceae)金石斛属
形态特征(Description):根状茎匍匐,粗壮,粗5-7毫米,具长3-6毫米的节间,每3-4个节间发出1个茎。茎下垂或斜出,金黄色,通常分枝;第一级分枝之下的茎长4-11厘米,粗3-7毫米,由基部向上稍变粗,具2-4个节间,当年生的新枝侧生于去年生的顶端一侧或假鳞茎的基侧旁。假鳞茎金黄色,稍扁的纺锤形,长3.5-5厘米,粗13-17毫米,具1个节间,顶生1枚叶。叶革质,椭圆状披针形,长12.5-13.5厘米,宽17-23毫米,先端近锐尖而微2裂,具多数两面隆起的平行脉。花序出自叶腋或叶基部的远轴面一侧,具1-5朵花;花序柄很短,长2-4毫米,被覆数枚丛生的鳞片状鞘;花梗和子房淡黄色,长约5毫米;花质地薄,仅开放半天,随后凋谢;中萼片乳白色,中部以下密布许多紫红色小斑点,长圆形,长12-15毫米,宽4-5毫米,稍凹的,先端锐尖,具5-6条主脉和多数横脉以及支脉;侧萼片乳白色带紫红色斑点,长圆状披针形,与中萼片相似,基部较宽而歪斜;萼囊淡黄色,几与子房交成直角,长约5毫米,末端钝;花瓣乳白色,长圆形,长10毫米,宽3毫米,先端锐尖,具3条主脉和多数横脉以及支脉;唇瓣白色,整体轮廓为倒卵形,基部楔形,长1.2厘米,3裂;两侧裂片(后唇)近直立,卵状三角形,长8毫米,宽约3毫米,先端稍钝;中裂片(前唇)从基部向先端扩大,先端呈V字形2裂;裂片近扇形,直立,基部两侧边缘褶皱状;唇盘从唇瓣后唇基部沿前唇(中裂片)基部两侧边缘至中部具2条褶脊;褶脊在上缘黄绿色,下缘紫红色,在后唇平直而光滑,到达前唇上面呈小鸡冠状褶皱;蕊柱粗短,前面两侧和基部紫色,长3毫米;蕊柱足向前伸,长6毫米;药帽前端平截,其边缘具细齿。花期6-7月。
分布(Distribution):产云南南部(勐腊)。生于海拔约900米的疏林中树干上。
用途(Use):
引自中国植物志英文版:FOC Vol. 25 Page 398, 400
Flickingeria bicolor Z. H. Tsi & S. C. Chen, Acta Phytotax. Sin. 33: 204. 1995.
二色金石斛 er se jin shi hu| Orchidaceae  | Flickingeria
Rhizome creeping, 5-7 mm in diam., stout, internodes 3-6 mm. Stems pendulous or ascending, golden yellow, 3-7 mm in diam., usually branching. Pseudobulbs golden yellow, fusiform, slightly compressed, 3.5-5 cm × 13-17 mm. Leaf blade elliptic-lanceolate, 12.5-13.5 × 1.7-2.3 cm, leathery, apex subacute and slightly bilobed. Inflorescence 1-5-flowered; peduncle 2-4 mm, with several tufted scalelike sheaths. Flowers lasting nearly half a day, thinly textured; pedicel and ovary pale yellow, sepals, petals, and lip creamy white or white, with dense purplish red spots on basal half of dorsal sepal and throughout lateral sepals, mentum pale yellow, lamellae on disk tinged with yellowish green or purplish red, column tinged red at base and margin; pedicel and ovary ca. 5 mm. Dorsal sepal oblong, slightly concave, 12-15 × 4-5 mm, acute; lateral sepals oblong-lanceolate, similar in size to dorsal sepal, base broad and oblique; mentum nearly perpendicular to ovary, ca. 5 mm, obtuse. Petals oblong, ca. 10 × 3 mm, acute; lip obovate in outline, ca. 12 mm, base cuneate, margin 3-lobed; lateral lobes suberect, ovate-triangular, ca. 8 × 3 mm, slightly obtuse; mid-lobe somewhat batlike, 2-lobed; lobules subflabellate, erect, basal margin crisped undulate; disk with 2 lamellae extending from base to near base of mid-lobe; lamellae strongly crisped undulate in apical half. Column ca. 3 mm, stout; foot ca. 6 mm. Fl. Jun-Jul.
● Epiphytic on tree trunks in open forests; ca. 900 m. S Yunnan.


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