150 MONOECIA, TRIANDRIA. 
347. CAREX. Gen. pl. 1407. ( Cyperoidee.) 
Flowers imbricated in an ament. Masc. Ca- 
lix of asingle scale. Corolla none. Fem. 
Calix also of 1 scale. Corolla ventricose, 
monopetalous, bidentate at the apex. Stig- 
mas 2 and 3. Nut triquetrous, included 
in the persistent corolla, (or utriculus. )}— 
Nutt. 
§ 1. Stigmas mosily two. 
t Spikes dioicous. 
sterilis, i. C. spikes about six; fruit ovate, compressed- 
triquetrous, acuminate, recurved and_ bi-cuspi- 
date at the top; margin ciliate-serrated.— 
Wild. 
Icon, Schk. Car. t. Mmm. f. 146. (Pursh.) 
Barren Sedge. 
In damp places and meadows, common. Perennial. May. 
pig SHES 
TT Spikes androgynous. 
* Spike 1, the summit masculine. 
pepo 2, C. spikes in an elliptical form; fruit. ovate, 
compressed, bifid, margined, ciliate-serrated 
above.—Willd. 
C. typhina, Mich. 
Icon. Schk. Car. t. Hbh. f. 133. 
Headed Sedge. 
In woods, not unfrequent. Perennial, June. 
squarvosae 3, C, spike simple androgynous, cylindrical: 
masculine below; capsules imbricated, hori- 
zontal.—Sp. Pl. | 

