36 EEPOBT OF THE STATE BOTANIST. 



15. Carex tenuiflora Wahl. 



Stems 0'-18' high, slender or capillary, erect or spreading, 

 mostly naked, smooth ; leaves smooth, flat and involute, -J"-!" 

 wide, usually shorter than the culm ; sj)iive capitate, silvery green, 

 b 'Coming whitish at maturity ; spikelets 2-1-3 3-5 flowered, 

 jiggregated in an ovoid head, or rarely the lowest 2"-3" distant ; 

 bracts bristle-form, mostly shorter than the spike; perigynia 

 ovate oblong, thick, nerved, light brown, beakless, nearly covered 

 by the ovate-oblong whitish scale. 



Stems tufted and branclied at base, the shortest often firm and 

 erect, the longest flexile. 



The silvery green spikelets collected in a head distinguish this 

 very rare or local species. It has been reported from Oneida and 

 St. Lawrence counties. June. 



16. Carex Deweyana Sc/m. 



Stems l°-2° high, slender, erect or diffuse, smooth; leaves 

 numerous, smooth, slightly rough-edged, l"-li" wide, shorter 

 than the culm, pale green becoming yellowish with age; spikes 

 9"-2' long, fle.xuous ; spikelets 2-t, the 2 or 3 u]iper ones approxi- 

 mate, the lowest distant or subdistant, 2-6 flowered, silvery- 

 green ; bracts bristle-shaped or filiform, the 2 lower sometimes 

 exceeding the culm ; perigynia oblong-ovate, acuminate, obscurely 

 nerved, thin, 2" long, with a long, rough-margined, bidentate 

 beak ; scale thin, whitish, oblong-acuminate or rough awned, as 

 long as the perigynium. 



Woods and open ])laces. Common. June. 



Easily recognized by the somewhat bristly asjiect of the soft 

 silvery spikelets and the somewhat drooping or flexuous character 

 of the spike. 



17. Carex canescens X. 



Stems 15-30' high, erect, rough above the middle ; leaves 

 glaucous, smooth, tlic margins rough, I'-l.^" wide, the extremities 

 filiform, shorter tlian the culm, or the radical ones sometimes 

 e.xceedingit; spikes li'-3' long; spikelets 4-8, densely 10 to 30 

 flowered, ovoid or globose, the 2 or 3 upper ones approximate, 

 the others 3"-12" apart, all more or less contracted at the base, 

 silvery-green ; bracts scale-like, sometimes with a bristle-shajied 



