Caricography. 63 



shea^ths striate, glabrous, white on the side of the stipule ; 

 spikelets 2 — 4, generally 3, staminate below, ovate, often 

 approximate, but commonly rather remote, 3 — 5 flowered 

 and loosely imbricated, all bracted except the highest ; 

 bracts long, slender, filiform, the lowest often surpassing 

 the|culm ; stigmas two ; fruit oblong-lanceolate, convex on 

 the upper, and flat on the lower side, acuminate, beaked, 

 forked, subscabrous on the margin ; pistillate scale oblong, 

 lanceolate, white, and transparent with a green keel, awn- 

 ed, and a little shorter than the the fruit. The colour of 

 the whole plant is yellowish green. 



Flowers in June — grows on the borders of moist rocky 

 woods on hills, never in clusters. In Williamstown on the 

 east side of Stone Hill, one mile from the College. Also 

 in Plainfield- 



The pistillate scale is somewhat variable, being some- 

 times more ovate and shorter, and at other times more* lan- 

 ceolate and very nearly as long as the fruit. 



This species resembles C. remotiuscula, Wahl., but dif- 

 fers from his description in the number of the spikelets, 

 and in the pistillate scale and fruit. From his C. tenuijiora 

 it ditfers in its spikelets, fruit, and leaves, and is clearly 

 dilEFerent from this species as given by Schk. tab. Eeee tig. 

 187. It diiTers from C. disperma, Vol. VIII. p. 266, of 

 this Journal, in the position of its staminate florets, and in 

 its fruit and scale. From the following species it differs in 

 several important characters. 



27. C. trisperma, (Mihi.) 



Spiculis ternis remotis alternis sessilibus ovatis apice fe- 

 mineis, suprema ebracteata ; fructibus oblongis acutis vel 

 breve rostratis plano-convexisoreintegerrimis multinervo- 

 sis apice subscabris sub-divergentibus, squama oblonga 

 acuta hyalina longioribus. 



Culm 18 — 24 inches high, slender, prostrate, filiform, 

 triangular, glabrous, leafy ; leaves very narrow, linear, 

 shorter than the culm; sheaths striate, glabrous; spike- 

 lets 3, staminate below, ovate, remote, often an inch apart, 

 2 — 4-fruited, but very generally 3-fruited, the two lower 

 supported by filiform, scabrous bracts surpassing the 

 culm ; stigmas two ; fruit oblong, convex above and plain 



