190 THE FLORA OF THE ALPS 
Parl.; panicle loose, leaves setaceous, rolled-up; rocky 
hills. 
22. DACTVLIS, us. 
Spikelets few-flowered; lowest branch of panicle dis- 
tant, on a long horizontal stalk. Not alpine. 
D. glomerata, L., Cock’s-Foot Grass ; everywhere. 
Bo) Rae Ae by 
Spikelets many-flowered, distant, pendulous, on very 
slender stalks. Not alpine. 
B. media, L., Quaking Grass; common. 
ga) POA, yl. 
Spikelets in panicles, few- or many-flowered ; flower- 
ing glumes compressed, keeled ; pale bifid. 
A. Stem thickened at the base like a bulb :—P. alpina, 
L.; ligules truncate, spikelets often replaced by leafy 
buds (viviparous) ; alpine pastures, common. <A. bulbosa, 
L.; spikelets pubescent, ligules oblong, acute; waste 
places: har. concinna, Gaud.; czespitose, leaves rolled up, 
panicle dense ; Valais, Piedmont, very rare (Sion, Aosta). 
B. Stem and leaf-sheaths compressed :—P. compressa, 
L.; root-stock with elongated stolons; dry banks and 
walls, common. VP. sudetica, Heenk.; leaves suddenly 
acuminate and cap-shaped at the apex; alpine pastures, 
frequent. P. hybrida, Gaud.; flowers woolly at the base, 
leaves gradually narrowed ; alpine pastures, local. 
C. Stem and leaf-sheaths nearly cylindrical ; root-stock 
with elongated stolons :—P. pratenszs, L. ; meadows, very 
common. P. distichophylla, Gaud.; spikelets dark violet; 
