毛颖早熟禾Poa pubicalyx Keng

科名：禾本科 Gramineae

属名：早熟禾属 Poa

《中国植物志》第9(2)卷177页
  144．毛颖早熟禾（禾本科图说）图版24：7
  Poa pubicalyx Keng ex L. Liu, in Addenda;中国主要植物图说·禾本科169, 图118. 1959; 横断山区维管植物2: 2192. 1994, sine latin. descr.
  多年生，具下伸短根茎。秆直立，高25-40厘米，具3-4节，紧接花序以下糙涩。叶鞘无毛，顶生者长8-15厘米，约与其叶片等长；叶舌三角形或撕裂状，长4-6毫米；叶片质地较硬，长5-15厘米，宽1-2毫米，两面与边缘均糙涩。圆锥花序狭窄，长5-13厘米；分枝2-3枚着生于各节，长2.5-3.5厘米，先端着生1-3枚小穗，下部裸露，粗糙；小穗含2小花，长3-4毫米；小穗轴疏生细毛；颖具3脉，全部贴生微毛，毛以上部和边脉较密，第一颖较狭，长3-4毫米，第二颖长4-5毫米，等长于小穗；外秤间脉明显，脊下部与边脉基部疏生柔毛，基盘具少量绵毛，第一外稃长3-3.8毫米；内稃短而窄；花药长1.5毫米。花果期7-8月。
  产四川西北部（乡城、德格、马尔康、石渠、阿坝、红原）。生于高山灌丛草甸、路旁湿草地中，海拔2900-4800米。模式标本采自四川西北部。

《Flora of China》 Vol. 22 (2006)
Poa faberi var. longifolia  (Keng) Olonova & G. Zhu
毛颖早熟禾   mao ying zao shu he
Basionym: Poa orinosa Keng var. longifolia Keng, Fl. Tsinling. 1(1): 439. 1976; P. fascinata Keng ex L. Liu; P. lepta Keng ex L. Liu; P. malaca Keng; P. pubicalyx Keng ex L. Liu.
Rachilla pubescent, lemma callus usually webbed.
* Meadows among scattered thickets on slopes, grassy places on sunny slopes; 2900–4400 m. Gansu, Shaanxi, Sichuan, Xinjiang, Xizang, Yunnan.
The type of Poa orinosa var. longifolia, which is mesomorphic with a long (ca. 3.5 mm) ligule, appears to be closer to P. faberi than to the quite xeromorphic P. orinosa, which is treated here as P. versicolor subsp. orinosa.

Poa malaca combines the characters of P. nemoralis and P. palustris, having a long ligule and pubescent rachilla. The type is very soft and thin. It seems to be much closer to the P. faberi complex, differing only by the shorter ligule, and occupies almost the same area.

Poa pubicalyx has lemmas not pubescent but sometimes with prickles, which is quite common with P. sect. Stenopoa. The types and all available gatherings of P. lepta and P. fascinata are poorly developed, feeble plants that look like unstabilized hybrids. Specimens with seeds or, at least, normally developed flowers are needed for confirmation of their status.