麦穗茅根Perotis hordeiformis Nees ex Hook. et Arn.
麦穗茅根Perotis hordeiformis Nees ex Hook. et Arn.
3．麦穗茅根（海南植物志）图版38：4-6
Perotis hordeiformis Nees ex Hook. et Arn. Bot. Beech. Voy. 247. 248. 1838; Bor, Grass. Burm. Ceyl. Ind. et Pakist. 611. 1960;海南植物志4: 394. 1977——Perotis glabrata Steud.. Syn. Pl. Glum. 1: 186. 1854.
一年生草本。须根细而柔韧。秆丛生，高25-75厘米，基部通常倾斜。叶鞘无毛，通常短于节间；叶舌膜质，长不及0.5毫米；叶片卵状或长卵状披针形，长2-4厘米，宽4-7毫米，两面无毛，边缘上部稍粗糙，下部常疏生纤毛，基部略呈心形而抱茎。穗形总状花序细柱形，直立或稍弯曲，长10-20厘米，宽1-1.5厘米（连芒），穗轴具沟槽；小穗长1.8-2毫米（芒除外），基盘钝而不明显；颖线形，具1脉，脉的两侧具数行纵列的微细小刺毛，顶端钝，由中脉延伸成5-7毫米的细芒；外稃长约0.8毫米，具1脉，内稃与外稃近等长，具不明的2脉；花药黄色，长约0.3毫米。颖果圆柱形，棕褐色，长约1.5毫米。染色体2n=40。花果期夏秋季。
产广东、海南、江苏（连云港）、台湾（系根据Bor，1960的记载，但台湾植物志未见收录，作者亦未见台湾标本）；生于低丘草地或近海沙质土壤上。分布于印度、斯里兰卡、缅甸、泰国、马来西亚等国。模式标本采自斯里兰卡。此种的不连续分布可能与侯鸟携带南北迁移有关。
《Flora of China》 Vol. 22 (2006)
Perotis hordeiformis Nees
麦穗茅根 mai sui mao gen
Perotis chinensis Gandoger.
Annual or short-lived perennial. Culms loosely tufted, erect or decumbent at base, 25–40 cm tall. Leaf sheaths glabrous; leaf blades lanceolate to narrowly ovate, 2–4 cm, 4–7 mm wide, glabrous, margins spiny-scabrous or loosely ciliate near base; ligule ca. 0.5 mm. Inflorescence up to 20 cm; spikelets usually densely arranged, ascending or horizontally spreading; rachis scabrous. Spikelets 1.5–2.5 mm (excluding awns); basal callus 0.1–0.2 mm, obtuse; glumes narrowly lanceolate, back scaberulous-hirtellous in rather indistinct close rows (most obvious toward lemma base), midvein pectinate-ciliolate, apex abruptly acute, clearly demarcated from awn; awn 0.5–1.5 cm. Anthers ca. 0.3 mm. Caryopsis terete, narrowly ellipsoid, ca. 1.5 mm. Fl. and fr. summer and autumn. 2n = 40.
Sandy places, along seashores. Guangdong, Hebei, Jiangsu, Yunnan [India, Indonesia, Malaysia, Nepal, Myanmar, Pakistan, Sri Lanka, Thailand].
This species is very close to Perotis indica and is sometimes included within it. No single character by itself is reliable for separating the two, but the combination of characters given in the key will usually suffice.
别名：宽叶茅根;茅根;
科名：禾本科 Gramineae
属名：茅根属 Perotis
3．麦穗茅根（海南植物志）图版38：4-6
Perotis hordeiformis Nees ex Hook. et Arn. Bot. Beech. Voy. 247. 248. 1838; Bor, Grass. Burm. Ceyl. Ind. et Pakist. 611. 1960;海南植物志4: 394. 1977——Perotis glabrata Steud.. Syn. Pl. Glum. 1: 186. 1854.
一年生草本。须根细而柔韧。秆丛生，高25-75厘米，基部通常倾斜。叶鞘无毛，通常短于节间；叶舌膜质，长不及0.5毫米；叶片卵状或长卵状披针形，长2-4厘米，宽4-7毫米，两面无毛，边缘上部稍粗糙，下部常疏生纤毛，基部略呈心形而抱茎。穗形总状花序细柱形，直立或稍弯曲，长10-20厘米，宽1-1.5厘米（连芒），穗轴具沟槽；小穗长1.8-2毫米（芒除外），基盘钝而不明显；颖线形，具1脉，脉的两侧具数行纵列的微细小刺毛，顶端钝，由中脉延伸成5-7毫米的细芒；外稃长约0.8毫米，具1脉，内稃与外稃近等长，具不明的2脉；花药黄色，长约0.3毫米。颖果圆柱形，棕褐色，长约1.5毫米。染色体2n=40。花果期夏秋季。
产广东、海南、江苏（连云港）、台湾（系根据Bor，1960的记载，但台湾植物志未见收录，作者亦未见台湾标本）；生于低丘草地或近海沙质土壤上。分布于印度、斯里兰卡、缅甸、泰国、马来西亚等国。模式标本采自斯里兰卡。此种的不连续分布可能与侯鸟携带南北迁移有关。
《Flora of China》 Vol. 22 (2006)
Perotis hordeiformis Nees
麦穗茅根 mai sui mao gen
Perotis chinensis Gandoger.
Annual or short-lived perennial. Culms loosely tufted, erect or decumbent at base, 25–40 cm tall. Leaf sheaths glabrous; leaf blades lanceolate to narrowly ovate, 2–4 cm, 4–7 mm wide, glabrous, margins spiny-scabrous or loosely ciliate near base; ligule ca. 0.5 mm. Inflorescence up to 20 cm; spikelets usually densely arranged, ascending or horizontally spreading; rachis scabrous. Spikelets 1.5–2.5 mm (excluding awns); basal callus 0.1–0.2 mm, obtuse; glumes narrowly lanceolate, back scaberulous-hirtellous in rather indistinct close rows (most obvious toward lemma base), midvein pectinate-ciliolate, apex abruptly acute, clearly demarcated from awn; awn 0.5–1.5 cm. Anthers ca. 0.3 mm. Caryopsis terete, narrowly ellipsoid, ca. 1.5 mm. Fl. and fr. summer and autumn. 2n = 40.
Sandy places, along seashores. Guangdong, Hebei, Jiangsu, Yunnan [India, Indonesia, Malaysia, Nepal, Myanmar, Pakistan, Sri Lanka, Thailand].
This species is very close to Perotis indica and is sometimes included within it. No single character by itself is reliable for separating the two, but the combination of characters given in the key will usually suffice.