宽叶线柱兰Zeuxine affinis
中文名（Chinese Name）：宽叶线柱兰
学名（Scientific Name）：Zeuxine affinis (Lindl.) Benth. ex Hook. f.
英文名（English Common Name）：
别名（Chinese Common Name）：亲种线柱兰
异名（Synonym）：Zeuxine arisanensis Hayata Zeuxine aurantiaca Schltr. Zeuxine sutepensis Rolfe ex Downie Adenostylis arisanensis (Hayata) Hayata
科属（Family & Genus）：兰科Orchidaceae线柱兰属Zeuxine
形态特征（Description）：植株高13-30厘米。根状茎伸长，匍匐，肉质，具节。茎直立，暗红褐色，向上转成绿褐色，具4-6枚叶。叶片卵形、卵状披针形或椭圆形，花开放时常凋萎，向下 垂，常带红色，长2.5-4厘米，宽1.2-2.5厘米，先端急尖或钝，基部收狭成长达1厘米的柄。花茎淡褐色，长5-20厘米，被柔毛，具1-2枚鞘状苞片，鞘状苞片背面被柔毛；总状花序具几朵至10余朵花，长3-9厘米；花苞片卵状披针形，背面和边缘具柔毛，先端长渐尖，与子房等长或稍较短；子房圆柱形，扭转，被柔毛，连花梗长8-9毫米；花较小，黄白色，萼片背面被柔毛；中萼片宽卵形，长4-5毫米，宽约4毫米，凹陷，先端钝或急尖，具1脉；侧萼片斜的卵状长圆形，长5-6毫米，宽2.5-3毫米，先端钝，具1脉；花瓣白色，斜的长椭圆形，与中萼片等长，宽约2毫米，先端钝，具1脉，不等侧，与中尊片粘合呈兜状；唇瓣白色，长6-7毫米，呈Y字形，前部扩大成2裂，其裂片倒卵状扇形，长4-5毫米，宽约4毫米，前部边缘全缘或具波状齿，中部收狭成长1-1.5毫米、边缘全缘且向内卷的爪，基部扩大并凹陷呈囊状，囊内两侧各具1枚钩状的胼胝体。花期2-4月。
分布（Distribution）：产台湾、广东、海南、云南。生于海拔800-1650米的山坡或沟谷林下阴处。马来西亚、泰国、老挝、缅甸、孟加拉、印度、锡金、不丹也有分布。
用途（Use）：
引自中国植物志英文版：FOC Vol. 25 Page 72, 75, 76
Zeuxine affinis (Lindley) Bentham ex J. D. Hooker, Fl. Brit. India. 6: 108. 1890.
宽叶线柱兰 kuan ye xian zhu lan | Orchidaceae | Zeuxine
Monochilus affinis Lindley, Gen. Sp. Orchid. Pl. 487. 1840; Adenostylis arisanensis (Hayata) Hayata; Zeuxine arisanensis Hayata; Z. sutepensis Rolfe ex Downie; Z. taiwaniana S. S. Ying; Z. uraiensis S. S. Ying.
Plants 11-30 cm tall, slender. Rhizome elongate. Stem erect, deep reddish brown to greenish brown, 4-6-leaved. Leaves subrosulate, withered and pendulous at anthesis, often reddish, ovate, ovate-lanceolate, or elliptic, 2.5-4 × 1.2-2.5 cm, apex acute or obtuse; petiole-like base ca. 1 cm including tubular sheath. Inflorescence 5-20 cm, with 1 or 2 puberulent sterile bracts, pubescent, pale brown; rachis 3-9 cm, subdensely several to many flowered; floral bracts ovate-lanceolate, 7-8 mm, pubescent on margin and lower half of abaxial surface, apex long acuminate. Flowers resupinate or occasionally erect, small; ovary and pedicel fusiform, 5-6 mm, glabrous to puberulent. Sepals not spreading, dark brownish green at base, white toward apex, pubescent; dorsal sepal broadly ovate, 4-5 × ca. 2.5 mm, concave, 1-veined, apex obtuse or acute; lateral sepals ovate-oblong, slightly oblique, 3.5-4.5 × ca. 2.5 mm, 1-veined, apex obtuse. Petals white, elliptic to obovate, oblique, ca. as long as dorsal sepal, 1.5-2 mm wide, 1-veined, apex obtuse; lip white or pale yellow, Y-shaped, 4.5-6 mm, 3-partite; hypochile concave-saccate, containing 2 subulate, hooked calli; mesochile short, to 1 mm, tapering toward apex, margin involute; epichile dilated, 2-lobed; lobes not diverging widely, obovate-flabellate, widening toward apex, 2-2.5 × 2-2.2 mm. Column 1.5-2 mm; wings triangular; anther ovoid-lanceolate, to 2 mm; rostellum arms oblong, ca. 0.6 mm. Fl. Feb-Apr. 2n = 20.
Shaded places in forests, forest margins, valleys; 800-1700 m. Guangdong, Hainan, Hunan, Taiwan, Yunnan [Bangladesh, Bhutan, India, Laos, Malaysia, Myanmar, Thailand, Vietnam].
Hong Kong plants previously treated as Zeuxine gracilis (Breda) Blume (e.g., by S. Y. Hu, Gen. Orchidaceae Hong Kong, 50. 1977) are probably referable here.
（责任编辑：徐晔春）
学名（Scientific Name）：Zeuxine affinis (Lindl.) Benth. ex Hook. f.
英文名（English Common Name）：
别名（Chinese Common Name）：亲种线柱兰
异名（Synonym）：Zeuxine arisanensis Hayata Zeuxine aurantiaca Schltr. Zeuxine sutepensis Rolfe ex Downie Adenostylis arisanensis (Hayata) Hayata
科属（Family & Genus）：兰科Orchidaceae线柱兰属Zeuxine
形态特征（Description）：植株高13-30厘米。根状茎伸长，匍匐，肉质，具节。茎直立，暗红褐色，向上转成绿褐色，具4-6枚叶。叶片卵形、卵状披针形或椭圆形，花开放时常凋萎，向下 垂，常带红色，长2.5-4厘米，宽1.2-2.5厘米，先端急尖或钝，基部收狭成长达1厘米的柄。花茎淡褐色，长5-20厘米，被柔毛，具1-2枚鞘状苞片，鞘状苞片背面被柔毛；总状花序具几朵至10余朵花，长3-9厘米；花苞片卵状披针形，背面和边缘具柔毛，先端长渐尖，与子房等长或稍较短；子房圆柱形，扭转，被柔毛，连花梗长8-9毫米；花较小，黄白色，萼片背面被柔毛；中萼片宽卵形，长4-5毫米，宽约4毫米，凹陷，先端钝或急尖，具1脉；侧萼片斜的卵状长圆形，长5-6毫米，宽2.5-3毫米，先端钝，具1脉；花瓣白色，斜的长椭圆形，与中萼片等长，宽约2毫米，先端钝，具1脉，不等侧，与中尊片粘合呈兜状；唇瓣白色，长6-7毫米，呈Y字形，前部扩大成2裂，其裂片倒卵状扇形，长4-5毫米，宽约4毫米，前部边缘全缘或具波状齿，中部收狭成长1-1.5毫米、边缘全缘且向内卷的爪，基部扩大并凹陷呈囊状，囊内两侧各具1枚钩状的胼胝体。花期2-4月。
分布（Distribution）：产台湾、广东、海南、云南。生于海拔800-1650米的山坡或沟谷林下阴处。马来西亚、泰国、老挝、缅甸、孟加拉、印度、锡金、不丹也有分布。
用途（Use）：
引自中国植物志英文版：FOC Vol. 25 Page 72, 75, 76
Zeuxine affinis (Lindley) Bentham ex J. D. Hooker, Fl. Brit. India. 6: 108. 1890.
宽叶线柱兰 kuan ye xian zhu lan | Orchidaceae | Zeuxine
Monochilus affinis Lindley, Gen. Sp. Orchid. Pl. 487. 1840; Adenostylis arisanensis (Hayata) Hayata; Zeuxine arisanensis Hayata; Z. sutepensis Rolfe ex Downie; Z. taiwaniana S. S. Ying; Z. uraiensis S. S. Ying.
Plants 11-30 cm tall, slender. Rhizome elongate. Stem erect, deep reddish brown to greenish brown, 4-6-leaved. Leaves subrosulate, withered and pendulous at anthesis, often reddish, ovate, ovate-lanceolate, or elliptic, 2.5-4 × 1.2-2.5 cm, apex acute or obtuse; petiole-like base ca. 1 cm including tubular sheath. Inflorescence 5-20 cm, with 1 or 2 puberulent sterile bracts, pubescent, pale brown; rachis 3-9 cm, subdensely several to many flowered; floral bracts ovate-lanceolate, 7-8 mm, pubescent on margin and lower half of abaxial surface, apex long acuminate. Flowers resupinate or occasionally erect, small; ovary and pedicel fusiform, 5-6 mm, glabrous to puberulent. Sepals not spreading, dark brownish green at base, white toward apex, pubescent; dorsal sepal broadly ovate, 4-5 × ca. 2.5 mm, concave, 1-veined, apex obtuse or acute; lateral sepals ovate-oblong, slightly oblique, 3.5-4.5 × ca. 2.5 mm, 1-veined, apex obtuse. Petals white, elliptic to obovate, oblique, ca. as long as dorsal sepal, 1.5-2 mm wide, 1-veined, apex obtuse; lip white or pale yellow, Y-shaped, 4.5-6 mm, 3-partite; hypochile concave-saccate, containing 2 subulate, hooked calli; mesochile short, to 1 mm, tapering toward apex, margin involute; epichile dilated, 2-lobed; lobes not diverging widely, obovate-flabellate, widening toward apex, 2-2.5 × 2-2.2 mm. Column 1.5-2 mm; wings triangular; anther ovoid-lanceolate, to 2 mm; rostellum arms oblong, ca. 0.6 mm. Fl. Feb-Apr. 2n = 20.
Shaded places in forests, forest margins, valleys; 800-1700 m. Guangdong, Hainan, Hunan, Taiwan, Yunnan [Bangladesh, Bhutan, India, Laos, Malaysia, Myanmar, Thailand, Vietnam].
Hong Kong plants previously treated as Zeuxine gracilis (Breda) Blume (e.g., by S. Y. Hu, Gen. Orchidaceae Hong Kong, 50. 1977) are probably referable here.
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