栏目

麻栗坡贝母兰Coelogyne malipoensis Z. H. Tsi

麻栗坡贝母兰Coelogyne malipoensis Z. H. Tsi

别名:

科名:兰科 Orchidaceae

属名:贝母兰属 Coelogyne

《中国植物志》第18卷348页
  9.麻栗坡贝母兰(植物研究)图版58:4-6
  Coelogyne malipoensis Z. H. Tsi in Bull. Bot. Res. 15 (1): 43. fig. 1. 1995.
  根状茎粗壮,坚硬,粗5-6毫米,密被褐色、鳞片状鞘。假鳞茎在根状茎上相距1.2-1.8厘米,狭长圆形,向上稍狭,长3.5-4厘米,粗8-11毫米,干后无光泽而有纵槽,顶端生1枚叶,基部有鞘;鞘长3-3.5厘米,后期脱落。叶椭圆形,长9-15宽4-5.2厘米,厚革质,先端短渐关;叶柄长2-8厘米。花葶生于未完全长成的假鳞茎顶端(在花期假鳞茎和花葶基部均包藏于鞘之内,但叶已完全伸出),长15-22厘采;总状花序长4.5-10.5厘米,具3-4朵花,基部有1枚抱轴的不育苞片;花苞片狭长圆形,多少舟状,纸质,长1.5-1.7厘米,脱落;花梗和子房长1-1.5厘米;花色泽不详,直径约2.5厘米;萼片狭卵形或近卵状披针形,长1.8-2厘米,宽6-7毫米,先端渐尖,具5脉;花瓣卵形,长1.4-1.5厘米,宽5-6毫米;唇瓣近长圆状倒卵形,长1.8-2厘米,上部宽约9毫米,先端近截形或圆钝,有3条纵脊从基部延伸至中部以上;蕊柱长8-10毫米,两侧边缘具翅;翅在顶端扩大,宽达5毫米,顶端截形。花期11-12月。
  产云南东南部(麻栗坡)。生于石灰山岩石上,海拔1400米。(模式标本产地)
形态特征:根状茎粗壮,坚硬,粗5---6毫米,密被褐色、鳞片状鞘。.假鳞茎在根状茎上相距1.2--1.8厘米,狭长圆形,向上稍狭,长3.5--4厘米,粗8—11毫米,干后无光泽而有纵槽,顶端生1枚叶,基部有鞘;鞘长3—3.5厘米,后期脱落。叶椭圆形,长9—15厘米,宽4--5.2厘米,厚革质,先端短渐尖;叶柄长2--8厘米。花葶生于未完全长成的假鳞茎顶端(在花期假鳞茎和花葶基部均包藏于鞘之内,但叶已完全伸出),长15—22厘米;总状花序长4.5—10.5厘米,具3--4朵花,基部有1枚抱轴的不育苞片;花苞片狭长圆形,多少舟状,纸质,长1.5—1.7厘米,脱落;花梗和子房长1—1.5厘米;花色泽不详,直径约2.5厘米;萼片狭卵形或近卵状披针形,长1.8--2厘米,宽6 7毫米,先端渐尖,具5脉;花瓣卵形,长1.4—1.5厘米,宽5--6毫米;唇瓣近长圆状倒卵形,长1.8--2厘米,上部宽约9毫米,先端近截形或圆钝,有3条纵脊从基部延伸至中部以上;蕊柱长8—10毫米,两侧边缘具翅;翅在顶端扩大,宽达5毫米,顶端截形。 花期11—12月。
产地分布:产云南东南部(麻栗坡)。生于石灰山岩石上,海拔1400米。(模式标本产地)
参考文献:Codogyne malipoensis Z.H.Tsi in Bull.Bot.Res.15(1):43.Fig.1.1995.

《Flora of China》 Vol. 25 (2009)
Coelogyne malipoensis  Z. H. Tsi Bull. Bot. Res., Harbin. 15: 43. 1995.
麻栗坡贝母兰   ma li po bei mu lan
Rhizome stout, 5-6 mm in diam., rigid, with dense, brown, scaly sheaths. Pseudobulbs 1.2-1.8 cm apart on rhizome, not lucid, narrowly oblong, slightly narrowed toward apex, 3.5-4 cm × 8-11 mm, longitudinally channeled when dried, with 1 leaf at apex, sheathing at base; sheaths 3-3.5 cm, later deciduous. Leaf blade elliptic, 9-15 × 4-5.2 cm, thickly leathery, apex shortly acuminate; petiole 2-8 cm. Inflorescence initially synanthous becoming hysteranthous, pseudobulb and inflorescence basally embraced by sheaths at anthesis, but leaves completely stretching out, 15-22 cm; rachis 4.5-10.5 cm, 3- or 4-flowered, base with 1 amplexicaul sterile bract; floral bracts deciduous, narrowly oblong, ± cymbiform, 1.5-1.7 cm, papery; pedicel and ovary 10-15 mm. Flowers ca. 2.5 cm in diam., with sepals and petals white, lip white with yellow on mid-lobe. Sepals narrowly ovate or subovate-lanceolate, 18-20 × 6-7 mm, 5-veined, apex acuminate. Petals ovate, 14-15 × 5-6 mm; lip suboblong-obovate, 18-20 × ca. 9 mm, apex subtruncate or obtuse-rounded; callus with 3 longitudinal lamellae extending from base of lip to above middle. Column 8-10 mm, both sides winged; wings dilated at apex, to 5 mm wide, apex truncate. Fl. Nov-Dec.
Rocky slopes in limestone areas; ca. 1400 m. SE Yunnan [Vietnam].

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