82 REPOBT OF THE STATE BOTAHIBT. 



The pistillate spikes, when fresh, are f a^.e green and more 

 densely flowered than in any of the other members of this group. 

 This is C. miliacea Muhl. of the older botanies. 



95. Carex arctata Boott. 



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

 somewhat stoloniferous, basal bracts dark purple ; leaves mostly 

 shorter than the culm, radical leaves numerous, l^"-5" wide, 

 smooth, rough-margined ; staminate spike linear, 6"-9" long, its 

 filiform stalk 5"-8'' in length, often inconspicuous ; pistillate 

 spikes 3-5, i'-l^' long, loosely flowered on a flexuous rachis, all 

 on drooping peduncles |^'-3' long, scattered, or the upper 2 

 approximate, the highest usually extending above the staminate 

 spike, the lowest remote; bracts leafy, sheathing, or the upper 

 mostly filiform, equaling or extending above the culm ; perigynia 

 ovate, stipitate, nerved, obtusely angled, tapering to a short 

 bidentate beak, longer than the white, acute or cuspidate scale ; 

 achenium obovoid, apiculate. 



Woods and shaded banks. Common. May, June. 



The stipitate perigynia constitute a distinguishing feature of 

 this species. 



C. arctata X castanea Bailey. Pubescent; spikes 1" wide, 

 loosely flowered, green or yellowish, somewhat approximate, 

 erect-spreading or drooping; perigynia ovate, nerved, hairy, with 

 a short bifid beak a little exceeding the acute whitish scale. 

 (C. Knieskernii Dew.) In the List of the Plants of Northpastern 

 North America this stands as C. arctata X formosa Bailey. 



96. Carex debilis Mx. 



Stems l°-2^° high, slender, erect or spreading, smooth, some- 

 times stoloniferous; leaves shorter or longer than the culm, 

 l^"-2" wide, spreading, rough ; staminate spike linear, pistillate 

 at the summit, short-stalked or subsessile ; pistillate spikes 3-5, 

 linear or narrowly cylindrical, loosely flowered on a flexuous 

 rachis l'-3' long, the 2 or 3 upper approximate on drooping 

 stalks |'-2' in length, or the highest nearly erect, the lowest 

 remote, pendulous on a penducle 2'-3' long, rarely branched at 

 the base ; bracts leafy, sheathing, exceeding or equaling the culm ; 

 perigynia fusiform, nerved, 3" long, tapering into a long slender 



