西南野古草Arundinella hookeri Munro ex Keng
西南野古草Arundinella hookeri Munro ex Keng
9. 西南野古草（拟）图版47：1-6
Arundinella hookeri Munro ex Keng in Nat. Centr. Univ. Sci. Rep. ser. B. 2 (3): 50. f. 25. 1936; Bor, Grass. Burm. Ceyl. Ind. Pakist. 422. 1960. ——Arundinella villosa Arn. et Wight var. himalaica Hook. f, Fl. Brit. Ind. 7: 73. 1897; Hand. -Mazz. Symb. Sin. 7; 1317. 1936. ——Arundinella chenii Keng in Nat. Centr. Univ. Sci. Rep. ser. B. 2 (3): 51. f. 26. 1936;中国主要植物图说 禾本科730. 图679. 1959; quoad. discr. Sin. , Syn. nov.
多年生草本。秆直立，质软，高（18-）30-60（稀90）厘米，直径1-3毫米，无毛，基部常有较多宿存的枯萎叶鞘；节黄褐色，无毛或具短柔毛。叶舌干膜质，长0.2-0.5毫米，具长柔毛；叶鞘密被疣毛；叶片草质，鲜时常披散，长5-20（-27）厘米，宽0.2-0.8厘米，两面密被疣毛。圆锥花序穗状或窄金字塔形，长3-12厘米，分枝短，通常不超过2厘米且靠近主轴；主轴具纵棱，棱上密生长柔毛；小穗排列紧密，孪生小穗柄分别长0.3毫米及1毫米，小穗灰绿色至褐紫色，长5-6（-6.5）毫米，两颖上部疏生硬疣毛；第一颖卵状披针形，长3.5-5毫米，先端渐尖，具5脉；第二颖长4.5-6.2毫米，长渐尖，具5脉；第一小花雄性，长卵形，长3.5-5.5毫米；外稃具3-5脉；第二小花长2.5-3.3毫米；芒宿存，芒柱棕色，长1-2毫米，芒针长2-3毫米，基盘毛长约1毫米，达稃体的1/3-1/2；花药紫黑色，长1.7-2.8毫米。颖果长卵形，淡棕色，长约2.2毫米，宽约0.8毫米，基部棕黑色：胚长约0.3毫米。花果期8-10月。
产西藏、四川、贵州西部及云南；生于海拔3 000米以下的山坡草地或疏林中。尼泊尔、锡金、不丹、印度东北部及缅甸北部山区也有。模式标本采自锡金。
茎叶鲜嫩时牲畜喜食。
陈谋野古草Arundinella chenii Keng与西南野古草Aruridinella hookei Munro ex Keng 在叶鞘的长短等形态特征及地理分布上没有明显界线，故予合并。
《Flora of China》 Vol. 22 (2006)
Arundinella hookeri Munro ex Keng
西南野古草 xi nan ye gu cao
Arundinella chenii Keng; A. villosa Arnott ex Steudel var. himalaica J. D. Hooker.
Perennial, tufted with a short knotty rhizome, base clothed with old papery sheaths. Culms erect or ascending, herbaceous, (18–)30–60(–90) cm tall, 1–3 mm in diam., internodes glabrous, 1–2-noded, nodes purple, glabrous or puberulent. Leaf sheaths shorter than internodes, densely hirsute; leaf blades mainly basal, linear-lanceolate, 2–20 cm × 2–12 mm, densely villous, apex acute; ligule 0.2–0.5 mm. Panicle contracted, oblong or narrowly pyramidal in outline, 3–12 cm; central axis densely pubescent; branches 1–2(–3) cm, suberect or ascending, inserted singly, spaced below, crowded above, densely spiculate; pedicels short, densely pubescent. Spikelets 5–7 mm, gray-green tinged purplish; glumes 5-veined, setose on veins, apex caudate; lower glume 3.5–5 mm; upper glume 4.5–6 mm; lower floret staminate, ± equaling lower glume; upper floret 2.5–3.5 mm, lemma apex emarginate, awned; awn geniculate with brown twisted column, 2–5 mm; callus hairs 2/5 length of lemma. Fl. and fr. Oct–Nov.
Common on mountainsides, open forests, meadows; 1800–3200 m. W Guizhou, SW and W Sichuan, SE Xizang, Yunnan [Bhutan, NE India, N Myanmar, Nepal].
This slender species is recognized by its tufts of hairy leaves; compact panicle with short, broad branches of densely packed, large spikelets; setose, caudate glumes; and clearly visible, geniculate awns.
别名：穗序野古草;喜马拉野古草;陈谋野古草;密穗野古草;喜马拉雅野古草;穗序野枯草;
科名：禾本科 Gramineae
属名：野古草属 Arundinella
9. 西南野古草（拟）图版47：1-6
Arundinella hookeri Munro ex Keng in Nat. Centr. Univ. Sci. Rep. ser. B. 2 (3): 50. f. 25. 1936; Bor, Grass. Burm. Ceyl. Ind. Pakist. 422. 1960. ——Arundinella villosa Arn. et Wight var. himalaica Hook. f, Fl. Brit. Ind. 7: 73. 1897; Hand. -Mazz. Symb. Sin. 7; 1317. 1936. ——Arundinella chenii Keng in Nat. Centr. Univ. Sci. Rep. ser. B. 2 (3): 51. f. 26. 1936;中国主要植物图说 禾本科730. 图679. 1959; quoad. discr. Sin. , Syn. nov.
多年生草本。秆直立，质软，高（18-）30-60（稀90）厘米，直径1-3毫米，无毛，基部常有较多宿存的枯萎叶鞘；节黄褐色，无毛或具短柔毛。叶舌干膜质，长0.2-0.5毫米，具长柔毛；叶鞘密被疣毛；叶片草质，鲜时常披散，长5-20（-27）厘米，宽0.2-0.8厘米，两面密被疣毛。圆锥花序穗状或窄金字塔形，长3-12厘米，分枝短，通常不超过2厘米且靠近主轴；主轴具纵棱，棱上密生长柔毛；小穗排列紧密，孪生小穗柄分别长0.3毫米及1毫米，小穗灰绿色至褐紫色，长5-6（-6.5）毫米，两颖上部疏生硬疣毛；第一颖卵状披针形，长3.5-5毫米，先端渐尖，具5脉；第二颖长4.5-6.2毫米，长渐尖，具5脉；第一小花雄性，长卵形，长3.5-5.5毫米；外稃具3-5脉；第二小花长2.5-3.3毫米；芒宿存，芒柱棕色，长1-2毫米，芒针长2-3毫米，基盘毛长约1毫米，达稃体的1/3-1/2；花药紫黑色，长1.7-2.8毫米。颖果长卵形，淡棕色，长约2.2毫米，宽约0.8毫米，基部棕黑色：胚长约0.3毫米。花果期8-10月。
产西藏、四川、贵州西部及云南；生于海拔3 000米以下的山坡草地或疏林中。尼泊尔、锡金、不丹、印度东北部及缅甸北部山区也有。模式标本采自锡金。
茎叶鲜嫩时牲畜喜食。
陈谋野古草Arundinella chenii Keng与西南野古草Aruridinella hookei Munro ex Keng 在叶鞘的长短等形态特征及地理分布上没有明显界线，故予合并。
《Flora of China》 Vol. 22 (2006)
Arundinella hookeri Munro ex Keng
西南野古草 xi nan ye gu cao
Arundinella chenii Keng; A. villosa Arnott ex Steudel var. himalaica J. D. Hooker.
Perennial, tufted with a short knotty rhizome, base clothed with old papery sheaths. Culms erect or ascending, herbaceous, (18–)30–60(–90) cm tall, 1–3 mm in diam., internodes glabrous, 1–2-noded, nodes purple, glabrous or puberulent. Leaf sheaths shorter than internodes, densely hirsute; leaf blades mainly basal, linear-lanceolate, 2–20 cm × 2–12 mm, densely villous, apex acute; ligule 0.2–0.5 mm. Panicle contracted, oblong or narrowly pyramidal in outline, 3–12 cm; central axis densely pubescent; branches 1–2(–3) cm, suberect or ascending, inserted singly, spaced below, crowded above, densely spiculate; pedicels short, densely pubescent. Spikelets 5–7 mm, gray-green tinged purplish; glumes 5-veined, setose on veins, apex caudate; lower glume 3.5–5 mm; upper glume 4.5–6 mm; lower floret staminate, ± equaling lower glume; upper floret 2.5–3.5 mm, lemma apex emarginate, awned; awn geniculate with brown twisted column, 2–5 mm; callus hairs 2/5 length of lemma. Fl. and fr. Oct–Nov.
Common on mountainsides, open forests, meadows; 1800–3200 m. W Guizhou, SW and W Sichuan, SE Xizang, Yunnan [Bhutan, NE India, N Myanmar, Nepal].
This slender species is recognized by its tufts of hairy leaves; compact panicle with short, broad branches of densely packed, large spikelets; setose, caudate glumes; and clearly visible, geniculate awns.
