旱茅Eremopogon delavayi (Hack.) A. Camus
旱茅Eremopogon delavayi (Hack.) A. Camus
1. 旱茅（禾本科图说）图版34；74：2
Eramopogon delavayi (Hack.) A. Camus in Ann. Soc. Linn. Lyon. 68: 208. 1921; 中国主要植物图说·禾本科840. 图787. 1959.——Andropogon delavayi Hack. in DC. Monogr. Phan 6: 404. 1889. ——Andropogon bootanensis HooK. f. Fl. Brit. Ind. 7: 166. 1896.——Schizachyrium bootanense (Hook. f.) A. Camus in Ann. Linn. Lyon. 70: 90. 1923.——Schizachyrium delavayi (Hack.) Bor in Ind. Far. Rer. Bot. 1 (3): 95. 1938; 中国高等植物图鉴5: 205. 图7240. 1976.
多年生草本；须根较硬而韧。秆直立丛生，高40-150厘米，具数至10余节，节无毛或被毛，下部节间圆形而无毛，上部节间因有分枝而一侧扁平，并于上部边缘具纤毛。叶鞘上部的短于节间，下部的长于节间，无毛，近鞘口具柔毛；叶舌干膜质，顶端钝圆，长1-1.5毫米；叶片线形，长6-30厘米，宽2-4毫米，边缘粗糙，无毛或疏具柔毛。总状花序单生枝顶，长1-4厘米，花序梗被毛或无毛，短于或长于紧抱花序基部的佛焰苞，佛焰苞鞘状，其上叶片常退化，长2-3厘米；总状花序轴节间和小穗柄都压扁，且几等长，边缘具纤毛，顶端稍膨大，多少具膜质齿状附属物；无柄小穗长圆状披针形，长4-6毫米（连基盘），基盘长约0.5毫米，具短髯毛，钝；第一颖长圆状披针形，具数脉，边缘内折具两脊，脊中上部具狭翼，翼边缘粗糙，顶端钝，有或无齿裂；第二颖舟形，具脊，与第一颖等长或稍长，脊中、上部粗糙或平滑，边缘内卷，第一外稃长圆状披针形，膜质，长为第一颖的3/4-4/5，边缘内卷，具纤毛，第二外稃狭，长为第一颖的1/2-3/4，顶端2裂，裂片达稃体的1/5-1/4，芒生裂片间，膝曲，长8-10毫米；内稃常退化；鳞被2，长约0.5毫米；雄蕊3，花药长2.5-4毫米，紫黑色，花柱分离，柱头羽毛状。有柄小穗通常雄性或中性，偶可见两性，具芒或无芒；第一颖长圆状披针形，具3-5脉，顶端截形具齿，边缘粗糙或平滑；第二颖与第一颖等长或稍短，具3脉，披针形，边缘内卷；第一外稃膜质，透明，长为第一颖的3/4，边缘具纤毛；第二外稃变异大，具芒或无芒；内稃常退化；鳞被2，雄蕊3或无，如为两性小穗，则雌蕊和雄蕊与无柄小穗相似。
产于云南、四川、贵州、湖南、广西和西藏等省区；生于海拔1200-3400米的山坡、林下，有时还可成草地优势种。缅甸、锡金和不丹也有分布。
《Flora of China》 Vol. 22 (2006)
Schizachyrium delavayi (Hackel) Bor
旱茅 han mao
Andropogon delavayi Hackel in A. Candolle & C. Candolle, Monogr. Phan. 6: 404. 1889; A. bootanensis J. D. Hooker; Eremopogon delavayi (Hackel) A. Camus; Schizachyrium bootanense (J. D. Hooker) A. Camus.
Perennial from a knotty rootstock. Culms loosely tufted, erect, wiry, 40–150 cm tall, upper internodes keeled, hirsute along keel, nodes glabrous. Leaf sheaths glabrous or thinly hirsute near mouth; leaf blades linear, 20–50 × 0.2–0.5 mm, glabrous or abaxial surface hirsute, apex finely acuminate; ligule truncate, 0.5–1 mm, margin ciliolate. Raceme 1–4 cm, purplish; spatheole narrow, glabrous or sparsely hirsute; rachis internodes and pedicels filiform, ca. 2/3 length of sessile spikelet, white-ciliate. Sessile spikelet 3.6–6 mm; callus obtuse, ca. 0.5 mm; lower glume narrowly lanceolate-oblong, leathery, glossy, back convex to almost flat, minutely asperulous, 5-veined, flanks keeled and narrowly winged above middle, wings ciliolate, apex erose; upper lemma 2-lobed in upper 1/4–1/3; awn 0.6–1 cm. Pedicelled spikelet male or barren, 4–5.3 mm, elliptic-oblong, papery, flat, back 3-veined, margins keeled and ciliolate above middle, apex acute. Fl. and fr. Jun–Nov.
Dry mountainsides, dry open forests; 1200–3400 m. Guangxi, Guizhou, Hunan, Sichuan, Xizang, Yunnan [Bhutan, India (Naga Hills, Sikkim), N Myanmar, Nepal].
This grass has been placed in Eremopogon (a synonym of Di-chanthium), but differs from that genus in its keeled lower glume and the absence of homogamous spikelet pairs.
别名：红秆草;云南裂麸草;云南旱茅;红裂稃草;云南裂稃草;
科名：禾本科 Gramineae
属名：旱茅属 Eremopogon
1. 旱茅（禾本科图说）图版34；74：2
Eramopogon delavayi (Hack.) A. Camus in Ann. Soc. Linn. Lyon. 68: 208. 1921; 中国主要植物图说·禾本科840. 图787. 1959.——Andropogon delavayi Hack. in DC. Monogr. Phan 6: 404. 1889. ——Andropogon bootanensis HooK. f. Fl. Brit. Ind. 7: 166. 1896.——Schizachyrium bootanense (Hook. f.) A. Camus in Ann. Linn. Lyon. 70: 90. 1923.——Schizachyrium delavayi (Hack.) Bor in Ind. Far. Rer. Bot. 1 (3): 95. 1938; 中国高等植物图鉴5: 205. 图7240. 1976.
多年生草本；须根较硬而韧。秆直立丛生，高40-150厘米，具数至10余节，节无毛或被毛，下部节间圆形而无毛，上部节间因有分枝而一侧扁平，并于上部边缘具纤毛。叶鞘上部的短于节间，下部的长于节间，无毛，近鞘口具柔毛；叶舌干膜质，顶端钝圆，长1-1.5毫米；叶片线形，长6-30厘米，宽2-4毫米，边缘粗糙，无毛或疏具柔毛。总状花序单生枝顶，长1-4厘米，花序梗被毛或无毛，短于或长于紧抱花序基部的佛焰苞，佛焰苞鞘状，其上叶片常退化，长2-3厘米；总状花序轴节间和小穗柄都压扁，且几等长，边缘具纤毛，顶端稍膨大，多少具膜质齿状附属物；无柄小穗长圆状披针形，长4-6毫米（连基盘），基盘长约0.5毫米，具短髯毛，钝；第一颖长圆状披针形，具数脉，边缘内折具两脊，脊中上部具狭翼，翼边缘粗糙，顶端钝，有或无齿裂；第二颖舟形，具脊，与第一颖等长或稍长，脊中、上部粗糙或平滑，边缘内卷，第一外稃长圆状披针形，膜质，长为第一颖的3/4-4/5，边缘内卷，具纤毛，第二外稃狭，长为第一颖的1/2-3/4，顶端2裂，裂片达稃体的1/5-1/4，芒生裂片间，膝曲，长8-10毫米；内稃常退化；鳞被2，长约0.5毫米；雄蕊3，花药长2.5-4毫米，紫黑色，花柱分离，柱头羽毛状。有柄小穗通常雄性或中性，偶可见两性，具芒或无芒；第一颖长圆状披针形，具3-5脉，顶端截形具齿，边缘粗糙或平滑；第二颖与第一颖等长或稍短，具3脉，披针形，边缘内卷；第一外稃膜质，透明，长为第一颖的3/4，边缘具纤毛；第二外稃变异大，具芒或无芒；内稃常退化；鳞被2，雄蕊3或无，如为两性小穗，则雌蕊和雄蕊与无柄小穗相似。
产于云南、四川、贵州、湖南、广西和西藏等省区；生于海拔1200-3400米的山坡、林下，有时还可成草地优势种。缅甸、锡金和不丹也有分布。
《Flora of China》 Vol. 22 (2006)
Schizachyrium delavayi (Hackel) Bor
旱茅 han mao
Andropogon delavayi Hackel in A. Candolle & C. Candolle, Monogr. Phan. 6: 404. 1889; A. bootanensis J. D. Hooker; Eremopogon delavayi (Hackel) A. Camus; Schizachyrium bootanense (J. D. Hooker) A. Camus.
Perennial from a knotty rootstock. Culms loosely tufted, erect, wiry, 40–150 cm tall, upper internodes keeled, hirsute along keel, nodes glabrous. Leaf sheaths glabrous or thinly hirsute near mouth; leaf blades linear, 20–50 × 0.2–0.5 mm, glabrous or abaxial surface hirsute, apex finely acuminate; ligule truncate, 0.5–1 mm, margin ciliolate. Raceme 1–4 cm, purplish; spatheole narrow, glabrous or sparsely hirsute; rachis internodes and pedicels filiform, ca. 2/3 length of sessile spikelet, white-ciliate. Sessile spikelet 3.6–6 mm; callus obtuse, ca. 0.5 mm; lower glume narrowly lanceolate-oblong, leathery, glossy, back convex to almost flat, minutely asperulous, 5-veined, flanks keeled and narrowly winged above middle, wings ciliolate, apex erose; upper lemma 2-lobed in upper 1/4–1/3; awn 0.6–1 cm. Pedicelled spikelet male or barren, 4–5.3 mm, elliptic-oblong, papery, flat, back 3-veined, margins keeled and ciliolate above middle, apex acute. Fl. and fr. Jun–Nov.
Dry mountainsides, dry open forests; 1200–3400 m. Guangxi, Guizhou, Hunan, Sichuan, Xizang, Yunnan [Bhutan, India (Naga Hills, Sikkim), N Myanmar, Nepal].
This grass has been placed in Eremopogon (a synonym of Di-chanthium), but differs from that genus in its keeled lower glume and the absence of homogamous spikelet pairs.