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大叶隔距兰Cleisostoma racemiferum

时间:2013-10-23 16:46来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ):大叶隔距兰 学名( Scientific Name ): Cleisostoma racemiferum (Lindl.) Garay 英文名( English Common Name ): 别名( Chinese Common Name ): 异名( Synonym ): Sarcanthus pallidus Lindl. Sarcanthus yunnanensis
中文名(Chinese Name):大叶隔距兰
学名(Scientific Name):Cleisostoma racemiferum (Lindl.) Garay
英文名(English Common Name):
别名(Chinese Common Name):
异名(Synonym):Sarcanthus pallidus Lindl.  Sarcanthus yunnanensis Schltr.  Saccolabium racemiferum Lindl.  Sarcanthus racemiferum (Lindl.) Rchb. f.  Sarcanthus chrysomelas Rchb.f.  Sarcanthus lorifolius C.S.P.Parish ex Hook.f.  Sarcanthus manlinensis Guillaumin  Sarcanthus racemifer (Lindl.) Rchb.f.  Sarcanthus tricolor Rchb.f.  Aerides racemifera (Lindl.) Wall. ex Hook.f.  Cleisostoma chrysomelas (Rchb.f.) Garay  Gastrochilus racemiferus (Lindl.) Kuntze
科属(Family & Genus):兰科Orchidaceae隔距兰属Cleisostoma
形态特征(Description):茎直立,粗壮,长5-20厘米,连同叶鞘粗2-2.5厘米,具分枝、长而粗壮的根。叶厚革质,扁平、带状,长达29厘米,宽3-4厘米,先端钝并且不等侧2裂,基部具1个关节和抱茎的叶鞘。花序出自叶腋,比叶长,多分枝;花序柄粗壮,圆锥花序疏生许多花;花苞片小,卵状披针形,长1-2毫米,先端渐尖;花梗和子房长4毫米;萼片和花瓣黄色带褐红色斑点;中萼片近长圆形,凹下呈舟状,长约3.5毫米,宽2.5毫米,先端钝;侧萼片稍斜长圆形,与中萼片近等大,先端圆形,基部贴生于蕊柱足;花瓣长圆形,长3毫米,宽2毫米,先端钝;唇瓣白色,3裂;侧裂片直立,三角形,中部向先端骤狭为钻状,有时稍向内弯曲;中裂片伸展,三角形,先端钝,上面在两侧裂片之间具1条脊突,与距内不甚发育的隔膜相连接;距内背壁上方的胼胝体近卵状三角形,基部稍2裂,其下部具乳突状毛;蕊柱长约2.5毫米,具翅;蕊喙三角形,伸出蕊柱翅之外;粘盘柄狭带状,边缘内折;粘盘小而厚,圆盘状;药帽前端收狭为喙状。花期6月。
分布(Distribution):产云南南部至西部(勐腊、勐海、思茅、盈江、腾冲)。生于海拔1350-1800米的山坡疏林中树干上。分布于锡金、不丹、印度东北部、缅甸、泰国、老挝、越南。
用途(Use):
引自中国植物志英文版:FOC Vol. 25 Page 459
Cleisostoma racemiferum (Lindley) Garay, Bot. Mus. Leafl. 23: 173. 1972.
大叶隔距兰 da ye ge ju lan| Orchidaceae  | Cleisostoma
Saccolabium racemiferum Lindley, Gen. Sp. Orchid. Pl. 224. 1833; Aerides racemifera (Lindley) Wallich ex J. D. Hooker; Gastrochilus racemifer (Lindley) Kuntze; Sarcanthus pallidus Lindley; S. racemifer (Lindley) H. G. Reichenbach; S. yunnanensis Schlechter.
Stems erect, 5-20 cm, stout, 2-2.5 cm in diam., branching. Leaves distichous, flat, lorate, ca. 29 × 3-4 cm, obtuse and unequally bilobed. Inflorescence axillary, longer than leaves, many branched, laxly many flowered; floral bracts ovate-lanceolate, small, 1-2 mm. Flowers: sepals and petals yellow with brownish red spots, lip white; pedicel and ovary ca. 4 mm. Dorsal sepal suboblong, concave, ca. 3.5 × 2.5 mm, obtuse; lateral sepals slightly obliquely oblong, ca. 3.5 × 3 mm, base adnate to column foot, apex rounded. Petals oblong, ca. 3 × 2 mm, obtuse; lip lateral lobes erect, deltoid; mid-lobe spreading, deltoid, obtuse, with a keel running down to spur linking to rudimentary septum; spur conic, 2-2.5 mm; back wall callus inside spur ovate-triangular, base with papillate hairs, slightly bilobed. Column ca. 2.5 mm, winged; rostellum triangular; stipe narrowly lorate, margin inflexed; viscidium suborbicular, small; anther cap beaked at apex. Fl. Jun. 2n = 38.
Epiphytic on tree trunks in open forests; 600-1800 m. S and W Yunnan [Bhutan, India, Laos, Myanmar, Nepal, Thailand, Vietnam].




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