白柱万代兰 Vanda brunnea

中文名Chinese Name):白柱万代兰
学名Scientific Name):Vanda brunnea Rchb. f.
英文名(English Common Name):
别名(Chinese Common Name):
异名(Synonym):Vanda henryi Schltr.  Vanda denisoniana var. hebraica Rchb. f.  Vanda denisoniana Benson et Rchb. f. :Z. H. Tsi  Vanda bensonii Bateman:W. W. Sm.
科属Family & Genus):兰科(Orchidaceae)万代兰属
形态特征Description):茎长约15厘米,粗1-1.8厘米,具多数短的节间和多数二列而披散的叶。叶带状,通常长22-25厘米,宽约2.5厘米,先端具2-3个不整齐的尖齿状缺刻,基部具1个关节和宿存而抱茎的鞘。花序出自叶腋,1-3个,不分枝,长13-25厘米,疏生3-5朵花;花序柄长7-18厘米,粗约4毫米,被2-3枚宽短的鞘;花苞片宽卵形,长3-4毫米,先端钝;花梗连同子房长7-9厘米,白色,多少扭转,具棱;花质地厚,萼片和花瓣多少反折,背面白色,内面(正面)黄绿色或黄褐色带紫褐色网格纹,边缘多少波状;萼片近等大,倒卵形,长约2.3厘米,宽1.7厘米,先端近圆形,基部收狭呈爪状;花瓣相似于萼片而较小;唇瓣3裂;侧裂片白色,直立,圆耳状或半圆形,长等于宽,约9毫米;中裂片除基部白色和基部两侧具2条褐红色条纹外,其余黄绿色或浅褐色,提琴形,长1.8厘米,基部与先端几乎等宽,先端2圆裂;距白色,短圆锥形,长6-7毫米,距口具1对白色的圆形胼胝体;蕊柱白色稍带淡紫色晕,粗壮,长5-7毫米;药帽淡黄白色,宽5-6毫米,在前面基部具深褐色的“V”字形;花粉团直径约2毫米;粘盘扁圆形,宽4-5毫米;粘盘柄近卵状三角形,长约4毫米,中部以上骤然变狭。花期3月。
分布(Distribution):产云南。生于海拔800~1800米的疏林中或林缘树干上。缅甸、泰国也有。
用途(Use):
引自中国植物志英文版:FOC Vol. 25 Page 471, 472
Vanda brunnea H. G. Reichenbach, Xenia Orchid. 2: 138. 1868.
白柱万代兰 bai zhu wan dai lan| Orchidaceae  | Vanda
Vanda denisoniana Benson & H. G. Reichenbach var. hebraica H. G. Reichenbach; V. henryi Schlechter.
Stems ca. 15 cm, 1-1.8 cm in diam. Leaf blade 22-30(-35) × 1.7-3 cm, thick, apex unequally 2-lobed. Inflorescences 1-3, 10-20(-25) cm, sparsely 3-5-flowered; peduncle 7-18 cm; floral bracts broadly ovate, 3-4 × 3-3.5 mm, apex obtuse. Flowers thickly textured, widely opening, 3.5-4 cm in diam.; pedicel and ovary white, 55-90 mm; sepals and petals abaxially white, adaxially yellowish green or yellowish brown tessellated with purplish brown. Sepals subsimilar, lateral sepals slightly wider than dorsal, spatulate, 22-25(-27) × 14-17 mm, base clawed, apex rounded. Petals spatulate, 19-22 × 9-12 mm, base clawed, apex rounded; lip shorter than sepals, fleshy, spurred; lateral lobes erect, white or yellowish white, broadly ovate, 7-9 × 7-8 mm, apex obtuse; mid-lobe yellowish green or pale brown, with white base and 2 brownish red stripes on both basal sides, pandurate, 16-18 × 7-8 mm, base with a pair of calli, apex broadly emarginate; spur white, broadly conic, 6-7 × 0.5-0.6 mm, apex acute-obtuse. Column white and slightly tinged with pale purple, 5-7 mm; anther cap yellowish white, 5-6 mm wide; pollinia ca. 2 mm in diam.; stipe subovate-triangular, ca. 4 mm; viscidium oblate, 4-5 mm wide. Fl. Mar. 2n = 38, 76.
On tree trunks in open forests or at forest margins; 800-2000 m. S Yunnan [Myanmar, Thailand, Vietnam].
白柱万代兰 Vanda brunnea

白柱万代兰 Vanda brunnea

白柱万代兰 Vanda brunnea(责任编辑:徐晔春)

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