• North American Cyperacea. 409 
85. Carex oxylepis, Torr, S^Hook. 
Spikes 4, slender, ratlier loosely flowered, subdistant, on 
filiform peduncles ; the terminal one staminate below ; fruit 
oblong, acute at each end, subtrigonous, smooth, with a mem- 
branaceous and minutely 2-lobed orifice, somewhat exceeding 
the lanceolate cuspidate scale. 
Culm 12 — 18 inches high. Leaves narrow, flat, piingently acute, 
nearly as long as the culm, the midrib and margins sparsely hairy, espe- 
cially on the lower surface. Peduncles filiform, nearly erect ; the lowest 
about 2 inches long, included in the sheath for the greatest part of its 
length ; the upper ones shorter, scarcely sheathed. Spikes about an 
inch in length, 15 — 30-flowered ; the terminal one staminate lor more 
tlian half its length. Scales lanceolate, scarious, with a green keel, 
gradually attenuate into a scabrous cusp, which is longest in the lowest 
flowers. Fruit pale green, obscurely nerved. Stigmas 3. Nut tri- 
quetrous- 
Hab. Texas, T. Drummond ! (Texan collection III. no. 
436.) This species is intermediate between C. gi-acillima A" 
C.formosa; it more nearly resembles the former, but is quite 
distinct from either. 
86. C. FORMOSA, Deiceij ! car. I. c. 8. p. 98. t. 2. f. 6 ; 
Schic. S)' Torr. ! car. I. c. p. 325. 
Hab. Massachusetts ! and the Western part of the State 
of New York ! 
87. C. Davisii, Schw. &f Torr. ! car. I. c. p. 320. 
C. aristata, Dewey ! car. I. c. 7. p. 277, & 9. t. 1. f. 1, not of R. 
Brown. 
C. Torreyana, Dewoj ! car. I. c. 10. p. 47. 
Hab. Massachusetts ! and the Western part of the State 
of New York! to Kentucky!; Cherokee, Muhlenberg (Herb. 
