74 KEPOET OF THE STATE BOTANIST. 



triangular obovate, obscurely nerved, smooth, olive-brown, shin- 

 ing, with a minute round beak, longer than the ovate obtuse or 

 acutish light-brown scale. 



Thin soil on or about limestone ledges. June. 



A very small species, but one easily known by its setaceous 

 leaves and its ver^^ small erect pistillate spikes surpassing the 

 staminate one. 



Plant dioecious ; staminate and pistillate spikes of the same size 

 and color ; bracts, when present, scale-like or setaceous, sheathless ; 

 perigynia dark purple, densely hairy, with a short, entire beak ; 

 scales blackish purple. 



83. Carex scirpoidea 3Tx. 



Stoloniferous ; stems 6'-15' high, slender, erect, smooth ; basal 

 bracts dark purple, acute or obtuse ; leaves subradical, stiff, 

 mostly much shorter than the culm, 1" wide, smooth ; staminate 

 spike subclavate, i'-l' in length with a small greenish tri-nerved 

 cuspidate bract and dark purple scales; pistillate spikes J'-l' 

 long, densely flowered ; bracts setaceous, sheathless ; perigynia 

 ovate, very hairy, gradually tapering to a short entire or notched 

 beak, mostly covered by the acutish blackish-purple ciliate scale. 



Thin soil covering rocks. Adirondack mountains. July. 



Plant monoecious; staminate spikeclavate,sessileorshort-stalked; 

 pistillate spikes l-5,globular-ovoid, oblong or cylindrical, sessile or 

 short-stalked, the upper 2 contiguous or approximate, or all distinct 

 and the lowest subdistant, each subtended bj^ a scale-like or green 

 bract, the lowest often by a leafy one i'-2i' long; perigynia 

 subrotund, oval or elliptical, obtusely or acutely angled, mostly 

 densely pubescent, abruptly contracted into a slender bifid beak ; 

 scale ovate, commonly brown or purplish, equaling or shorter 

 than the perigynia. 



Plant pubescent puboscens. 



Plant glabrous 1 



1 Pisliilate spikes on short stems, iimbellately clustered, umbellata. 



1 Pisliilate spikes not umbellately clustered 2 



2 Bracts sheathing, purplish Richardsonii. 



2 Bracts not slieathing 3 



3 Staminate spike .3" long or less 4 



3 Staminate spike more than 3" long 6 



