182 THE FLORA OF THE ALPS 



n. PHLEUM, L. 



Panicle dense, cylindrical; flowering glume enclosing 

 the fruit ; empty glumes often truncate. 



P. pratense, L., Timothy Grass ; very common. P. 

 alpinum, L. (including commutatum, Gaud.) ; panicle 

 ovoid, upper leaf-sheath inflated; alpine pastures, fre- 

 quent. P. Michelii, All. ; glumes lanceolate, glabrous, 

 with long stiff hairs on the keel; alpine pastures. P. 

 asperum, Jacq. ; glumes wedge-shaped, the keel rough- 

 tubercular ; waste ground, rare. P. Bcehmeri, Wib. ; 

 glumes linear-oblong, spotted-tubercular ; waste ground. 



12. MlBORA, Adans. 



Spikelets compressed dorsally, in a simple sub-disti- 

 chous spike ; styles very long. Not alpine. 



M. minima, Desv. (Knappia agrostidea, Sm.) ; densely 

 csespitose, stems very slender, 1-3 in.; wet sandy places, 

 rare. 



13. AGROSTIS, L. 



Panicle loose, with whorled branches; spikelets i- 

 flowered ; flowering glume small, hyaline. 



A. vulgaris, With., Bent Grass; everywhere. A. 

 canina, L. ; leaves narrower; wet places. A. alba, L. ; 

 ligule long, acute; common. A. rupestris, AIL; branches 

 of panicle glabrous, spikelets small; rocky; alpine, fre- 

 quent. A. alpina. Scop. ; spikelets smaller, panicle oval, 

 branches rough; rocky; alpine, common. A. Schleicheri, 

 Jord.; a larger plant, panicle lanceolate in outline, branches 

 rough; Switzerland, Jura, rare. A. Spica- Venti, L. (Apera 



