C, abrupta Mack. ———->Densely caespitose, with thickened and 
the other face, bearing about 9 slender veins 
to the base, narrowed at the base, rather abruptly acumine 
Slender beak about 1.5 mm. long which is obliquely incised but otherwise 
entire, the margins very thin and sharp. 
Revett Lake, 5000 ft., Epling, Houck and Putnam 10122. 
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(3) Preslii Steud. ————» Densely caespitose with thickish come — | 
Tike rootstocks, the culms slender, erect, 10~70 om. tall, longer than 
the leaves especially in robust forms, light brown at the base, roughened 
above; leaf-blades flat, 1.5-4 mm. wide, the lowermost much reduced, 
the sheaths loose, obliquely cut and abruptly tapering into the dimin- 
ished often awn-like blade; spikes 2-8, usually 4-5, bearing both stamin~ 
ate and pistillate flowers, ovoid, brown, 5-8 mm. long, congested into 
s terminal ovoid cluster 1-2 cm. long which is subtended by a short 
brown membranous bract; scales ovate, acute about 3 mme long, thin, 
brown throughout or with a green midrib, the margins hyaline; perigynia 
broadly ovate, 3.5-4 mm. long, green, becoming tan color, rounded at the 
base, flat on one surface which is usually veinless, the rounded surface 
veinless or with 2-3 weak veins; the margins thin and sharp, scabrous, 
abruptly beaked, the beak 1-1.5 mm. long, sharply 2-toothed. 
~~ 
Dry soils of open ridgese 
