布达尔碱茅Puccinellia ladyginii (Ivan.) Tzvel.
布达尔碱茅Puccinellia ladyginii (Ivan.) Tzvel.
39.布达尔碱茅(拟)图版30:4
Puccinellia ladyginii (Ivan.) Tzvel. Bot. Syst. Inst. Sc. URSS 17: 65. 1955.
多年生,密丛。秆直立,高20-30厘米,具2-3节,基部节膝曲。叶鞘平滑;叶舌长1-2毫米;叶片扁平,长5-8厘米,宽约2毫米,平滑或上面微粗糙。圆锥花序长5-8厘米,宽约4厘米,开展;分枝孪生,长3-4厘米,上部着生小枝与小穗,下部裸露,平滑或微粗糙;小穗长约6毫米,含4-6小花,带紫红色;颖卵状披针形,第一颖长1.5-2毫米,具1脉,第二颖长2-2.5毫米,具3脉,先端钝或稍尖,边缘膜质,具细缘毛;外稃卵状长圆形,长约3毫米,顶端钝,边缘宽膜质,具缘毛,有细齿,脊上部微粗糙或平滑无毛,基部有柔毛;花药长约1.5毫米。花期6-8月。
产青海(布达尔山)。生于高山河滩沙地,海拔3900-4200(-5600)米。分布于中亚、帕米尔高原。模式标本采自青海。
《Flora of China》 Vol. 22 (2006)
Puccinellia ladyginii Ivanova ex Tzvelev
布达尔碱茅 bu da er jian mao
Perennial, loosely tufted. Culms erect, 20–30 cm tall, 2- or 3-noded. Leaf sheaths smooth; ligule 1–2 mm; leaf blade flat, 5–8 cm, 1.5–2.2 mm wide, smooth or adaxial surface scabrid. Panicle open, 5–8 × 3–5 cm; branches 2 per node, 3–4 cm, lower part naked, branchlets and spikelets in upper half, smooth or rarely slightly scabrid. Spikelets ca. 6 mm, tinged purplish red, florets 4–6; glumes ovate-lanceolate, lower glume 1.5–2 mm, 1-veined, upper glume 2–2.5 mm, 3-veined, apex obtuse or slightly acuminate; lemmas 2.5–3.4 mm, glabrous, apex obtuse; palea keels smooth or sparsely scabrid in upper part; anthers 1.3–2 mm. Fl. Jun–Aug.
* Alpine sandy river beaches; 3500–4500(–5000) m. Qinghai.
科名:禾本科 Gramineae
属名:碱茅属 Puccinellia
39.布达尔碱茅(拟)图版30:4
Puccinellia ladyginii (Ivan.) Tzvel. Bot. Syst. Inst. Sc. URSS 17: 65. 1955.
多年生,密丛。秆直立,高20-30厘米,具2-3节,基部节膝曲。叶鞘平滑;叶舌长1-2毫米;叶片扁平,长5-8厘米,宽约2毫米,平滑或上面微粗糙。圆锥花序长5-8厘米,宽约4厘米,开展;分枝孪生,长3-4厘米,上部着生小枝与小穗,下部裸露,平滑或微粗糙;小穗长约6毫米,含4-6小花,带紫红色;颖卵状披针形,第一颖长1.5-2毫米,具1脉,第二颖长2-2.5毫米,具3脉,先端钝或稍尖,边缘膜质,具细缘毛;外稃卵状长圆形,长约3毫米,顶端钝,边缘宽膜质,具缘毛,有细齿,脊上部微粗糙或平滑无毛,基部有柔毛;花药长约1.5毫米。花期6-8月。
产青海(布达尔山)。生于高山河滩沙地,海拔3900-4200(-5600)米。分布于中亚、帕米尔高原。模式标本采自青海。
《Flora of China》 Vol. 22 (2006)
Puccinellia ladyginii Ivanova ex Tzvelev
布达尔碱茅 bu da er jian mao
Perennial, loosely tufted. Culms erect, 20–30 cm tall, 2- or 3-noded. Leaf sheaths smooth; ligule 1–2 mm; leaf blade flat, 5–8 cm, 1.5–2.2 mm wide, smooth or adaxial surface scabrid. Panicle open, 5–8 × 3–5 cm; branches 2 per node, 3–4 cm, lower part naked, branchlets and spikelets in upper half, smooth or rarely slightly scabrid. Spikelets ca. 6 mm, tinged purplish red, florets 4–6; glumes ovate-lanceolate, lower glume 1.5–2 mm, 1-veined, upper glume 2–2.5 mm, 3-veined, apex obtuse or slightly acuminate; lemmas 2.5–3.4 mm, glabrous, apex obtuse; palea keels smooth or sparsely scabrid in upper part; anthers 1.3–2 mm. Fl. Jun–Aug.
* Alpine sandy river beaches; 3500–4500(–5000) m. Qinghai.
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