172 THE FLORA OF THE ALPS 
S. Holoschenus, L.; spikelets in compact globose cymose 
heads; wet places, rare. 
D. Spikelets small, terminal, solitary; bristles 3-8 :— 
S. cespitosus, L.; stems 6-12 in., very czespitose, bristles 
longer than the fruit; S. pauczflorus, Lightf.; resembling 
the last, but stem leafless; S. arvulus, R. and S.; very 
dwarf, 1-2 in., spikelets of 3-4 very small flowers; all 
in wet sandy places, the last very rare. 
&. Spikelets in a distichous spike:—5S. compressus, 
Pers. (S. Caricis, Retz.; Blysmus compressus, Panz.) ; 
stigmas 2; wet meadows. ; 
4. FIMBRISTYLIS, Vahl. 
Flowers bisexual; style dilated at the base and per- 
sistent. 
F. laxa, Vahl; stem leafy, spikelets 3-5; very rare; 
marshes; Ticino. 
5. ERIOPHORUM, L. 
Flowers bisexual; perianth-bristles very long and 
slender, cottony. 
A. Spikelets several, drooping, in lateral cymes :—AZ. 
polystachion, L. (including angustzfolium, Roth, and 
latifolium, Hoppe), Cotton-Grass; marshy meadows, 
very common. £&. mznus, Koch, is a mountain form. 
E.. gracile, Koch; very similar, but more slender, with 
narrower leaves; peat-bogs. 
&. Spikelet solitary, terminal:—Z. alpinum, L. (PI. 
118); stem 6-10 in., very slender, head snow-white, 
perianth-bristles wavy; moist alpine pastures, frequent. 
EL. vaginatum, L.; heads snow-white, perianth - bristles 
