多毛叶薯蓣Dioscorea decipiens Hook. f.
多毛叶薯蓣Dioscorea decipiens Hook. f.
49. 多毛叶薯蓣（中国高等植物图鉴）粘山药（云南盈江），黄山药（云南景洪）图版35: 6-7
Dioscorea decipiens Hook. f. Fl. Brit. Ind. 6: 293. 1892; Prain et Burkill in Journ. Asiat. Soc. Bengal n. s. 10: 31. 1914; R. Knuth in Engl. Pflanzenr. 87 (4-43): 287. 1924; Prain et Burkill in Ann. Bot. Gard. Calcutta 14 (2): 400. 1939, pl. 142. 1938; 中国高等植物图鉴 5: 568，图7966. 1976.
藤本。块茎长圆柱形，垂直生长，外皮褐色，干时皱缩，有多数细长须根，断面新鲜时白色，有时带淡黄色，干时微带红棕色。茎有短柔毛，后变无毛，右旋。单叶，在茎下部的互生，近中部以上的对生；叶片纸质，长椭圆状卵形至卵圆形，或为卵状披针形，长5-17 (20) 厘米，宽3-10 (-14) 厘米，顶端尾尖，有时钝或锐尖，基部圆形或浅心形，全缘，表面疏生柔毛，老时脱落，背面柔毛疏或密，基出脉3-7；叶柄长1-6厘米，有柔毛。雌雄异株；花序轴有短柔毛。雄花序为穗状花序，长1-2厘米，2至数个簇生或单生于花序轴上排列呈圆锥花序，有时穗状花序数个簇生于叶腋；雄花绿白色，无毛，外轮花被片宽卵形，长约1毫米，内轮椭圆状卵形，稍小；发育雄蕊3，与3个退化雄蕊互生。雌花序为穗状花序，长达20厘米，1至数个着生于叶腋，或排列呈圆锥花序；雌花的外轮花被片为卵圆形，肥厚，外面与子房均有短柔毛，内轮为卵形；退化雄蕊6。蒴果有短柔毛，不反折，三棱状扁圆形，长1-2厘米，宽1.5-3.5厘米；种子着生于每室中轴中部，四周有膜质翅。花期9-翌年1月，果期12-翌年1月。
产云南勐腊、景洪、思茅、临沧、盈江等县。生于海拔500-1500米的山坡、山沟斜坡的常绿阔叶林中或灌木林下。缅甸、泰国、老挝均有分布。模式标本采自缅甸。
《Flora of China》 Vol. 24 (2000)
Dioscorea decipiens J. D. Hooker
多毛叶薯蓣 duo mao ye shu yu
Tubers vertical, cylindric; cork brown, drying wrinkled; transverse section white or light yellow, drying slightly purplish brown. Stem twining to right, densely puberulent, glabrescent, rarely glabrous. Leaves alternate basally on stem, opposite distally on stem, simple; petiole 1--6 cm; leaf blade ovate to elliptic-ovate or ovate-lanceolate, 5--17(--20) × 3--10(--14) cm, base slightly cordate to rounded, margin entire, apex obtuse, sharply acuminate, or caudate. Male spikes solitary or 2 or 3 together, ca. 2 cm, in axillary panicles 6--30 cm; main axis sometimes to 2 mm thick, densely and shortly pubescent; rachis straight. Male flowers: perianth greenish white, glabrous, outer lobes broadly ovate, ca. 1.2 mm, inner ones elliptic-ovate; stamens 3; staminodes 3. Female spikes to 20 cm, puberulent. Female flowers: staminodes 6. Capsule not reflexed, oblate, 1--2 cm; wings 0.7--1.7 cm wide. Seeds inserted near middle of capsule, winged all round. Fl. Sep--Jan, fr. Dec--Jan.
Evergreen broad-leaved forests, scrub, mountain slopes; 500--2200 m. Yunnan [Laos, Myanmar, Thailand].
别名：粘山药;多毛薯蓣;多毛黄薯蓣;黄山药;臭山药;
科名：薯蓣科 Dioscoreaceae
属名：薯蓣属 Dioscorea
49. 多毛叶薯蓣（中国高等植物图鉴）粘山药（云南盈江），黄山药（云南景洪）图版35: 6-7
Dioscorea decipiens Hook. f. Fl. Brit. Ind. 6: 293. 1892; Prain et Burkill in Journ. Asiat. Soc. Bengal n. s. 10: 31. 1914; R. Knuth in Engl. Pflanzenr. 87 (4-43): 287. 1924; Prain et Burkill in Ann. Bot. Gard. Calcutta 14 (2): 400. 1939, pl. 142. 1938; 中国高等植物图鉴 5: 568，图7966. 1976.
藤本。块茎长圆柱形，垂直生长，外皮褐色，干时皱缩，有多数细长须根，断面新鲜时白色，有时带淡黄色，干时微带红棕色。茎有短柔毛，后变无毛，右旋。单叶，在茎下部的互生，近中部以上的对生；叶片纸质，长椭圆状卵形至卵圆形，或为卵状披针形，长5-17 (20) 厘米，宽3-10 (-14) 厘米，顶端尾尖，有时钝或锐尖，基部圆形或浅心形，全缘，表面疏生柔毛，老时脱落，背面柔毛疏或密，基出脉3-7；叶柄长1-6厘米，有柔毛。雌雄异株；花序轴有短柔毛。雄花序为穗状花序，长1-2厘米，2至数个簇生或单生于花序轴上排列呈圆锥花序，有时穗状花序数个簇生于叶腋；雄花绿白色，无毛，外轮花被片宽卵形，长约1毫米，内轮椭圆状卵形，稍小；发育雄蕊3，与3个退化雄蕊互生。雌花序为穗状花序，长达20厘米，1至数个着生于叶腋，或排列呈圆锥花序；雌花的外轮花被片为卵圆形，肥厚，外面与子房均有短柔毛，内轮为卵形；退化雄蕊6。蒴果有短柔毛，不反折，三棱状扁圆形，长1-2厘米，宽1.5-3.5厘米；种子着生于每室中轴中部，四周有膜质翅。花期9-翌年1月，果期12-翌年1月。
产云南勐腊、景洪、思茅、临沧、盈江等县。生于海拔500-1500米的山坡、山沟斜坡的常绿阔叶林中或灌木林下。缅甸、泰国、老挝均有分布。模式标本采自缅甸。
《Flora of China》 Vol. 24 (2000)
Dioscorea decipiens J. D. Hooker
多毛叶薯蓣 duo mao ye shu yu
Tubers vertical, cylindric; cork brown, drying wrinkled; transverse section white or light yellow, drying slightly purplish brown. Stem twining to right, densely puberulent, glabrescent, rarely glabrous. Leaves alternate basally on stem, opposite distally on stem, simple; petiole 1--6 cm; leaf blade ovate to elliptic-ovate or ovate-lanceolate, 5--17(--20) × 3--10(--14) cm, base slightly cordate to rounded, margin entire, apex obtuse, sharply acuminate, or caudate. Male spikes solitary or 2 or 3 together, ca. 2 cm, in axillary panicles 6--30 cm; main axis sometimes to 2 mm thick, densely and shortly pubescent; rachis straight. Male flowers: perianth greenish white, glabrous, outer lobes broadly ovate, ca. 1.2 mm, inner ones elliptic-ovate; stamens 3; staminodes 3. Female spikes to 20 cm, puberulent. Female flowers: staminodes 6. Capsule not reflexed, oblate, 1--2 cm; wings 0.7--1.7 cm wide. Seeds inserted near middle of capsule, winged all round. Fl. Sep--Jan, fr. Dec--Jan.
Evergreen broad-leaved forests, scrub, mountain slopes; 500--2200 m. Yunnan [Laos, Myanmar, Thailand].