SO 44. Triohophor. 9. CYPERAC£y£. Pl.end.ph . 
slender, leafy at bottom ; leaves short, linear, obtuse, chan- 
nelled ; sheaths tubular ; scales many ; spike terminal, single; 
hermaphrodite or unisexual ; hractece 2, unequal, glu- 
maceous. 
Trichophorum alpinum. Alpine hares-tail . 
Culm 3 or 4 angular, angles rough ; hractece shorter than 
the spike ; spike few-flowered. 
Linagrostis § 1, No. 3, Micheli N. P. G. 54. 
Eriophorum alpinum, Lin. S. P. 77. 
Trichophorum alpinum, Persoon Syn. 1,70. 
Turf bogs; perennial; April, May. 
Culms erect, 9 in. high ; leaves 1 in. long, blunt ; spike 
ovate; hractece ovate; upper bractea mucronate; mucro 
short, blunt ; lower bractea awnless. 
XIII. 44. ERIOPHORUM. Theophrastus. Cotiongrass . 
Spathelle 1, imbricate, all fertile; glumelles bristly, 
bristles many, smooth, woollike, longer than the glumes, 
becoming exserted; stamens 3; style 1, not dilated at bot- 
tom, jointed, falling off; stigmata 2 or 3; akenium 3-sided, 
ovate. — Root creeping, mostly in tufts, perennial; culms 
round or angular, mostly smooth ; spike manyflowered, 
hermaphrodite ; glumes scarcely ribbed, very thin, scariose, 
dark, edge white. 
a. Spikes single , terminal ; hractece 3 or 4, like the glumes . 
1. Eriophorum capitatum . Headed cotiongrass. 
Culm round ; sheaths slightly inflated : spike sub- 
globose ; anther heartshape, ovate, short ; root creeping. 
Linagrostis § 1, No. 2, Micheli N. P. G. 54. 
Eriophorum capitatum, Hoff. Germ. 3, 26. 
Eriophorum Scheuehzeri, Persoon Syn. 1,70. 
Eriophorum vagiuatum #, Suter FL Helv. 1,28. 
Eriophorum alpinum, Villars Dauph. 2, 184. 
Marshy heaths ; perennial ; March. 
Root long; culms few, thick, soft, deep green, sheathed 
below; leaves in bundles, bristlelike, awlshape, spongy, 
shorter than the culms. 
2. Eriophorum vaginatum. Sheathed cotiongrass . 
Culms 3-sided; sheaths inflated above, bellied; spike 
oblong, ovate; anthers linear, long; root fibrous, in tufts. 
