374 CYPERACEiE. Carex. 



rouffh on the margin, greenish. Style nearly as long as the fruit, somewhat bulbous and 

 articulated at the base. Perigynium straight, diverging, ovate at the base, with a short 

 acumination. Achenium orbicular-ovate, lenticular. 



Hill-sides and banks of rivers : common. Fl. May. Fr. Early in June. 



10. Carex Muhlenbergii, Schk. Muhlenberg's Sedge. 



Spikelets 5-7, closely approximated, each with a setaceous bract at the base, which is 

 usually longer than the spikelet ; perigynium broadly ovate, compressed, slightly nerved, 

 somewhat diverging, 2-cleft at the point, rough on the margin, shorter than the ovate mucronate 

 scale. — Schk. Car. 2. p. 12. t. Yyy. /. 178 ; Willd. sp. 4. p. 231 ; Pursh, ft. 1. p. 36 ; 

 Muhl. gram. p. 221 ; Ell. sk. 2. p. 529 ; Dew. Car. I. c. 8. p. 265 ; Schivcin. ^- Torr. I. c. 

 p. 304 ; Beck, hot. p. 432 ; Darlingt. fl. Cest. p. 28 ; Kuntli, emim. 2. p. 381. 



Plant dark green. Culm 12-18 inches high, rather stout, triangular, striate, rough on the 

 angles above. Leaves broadly linear. Compound spike about an inch long ; the setaceous 

 bracts generally conspicuous, but sometimes short. Spikelets somewhat distinct. Scales with 

 a short awn, which is a little longer than the perigynium. Perigynium plano-convex, ciliate- 

 scabrous on the margin, flat on the back, slightly convex in front, with a short abrupt acumina- 

 tion, finally diverging ; the margin acute and serrulate about half way down. Achenium 

 orbicular-obovate, lenticular, crowned with the very short style, which is somewhat bulbous 

 and articulated at the base. 



Rocky hill-sides, and on mountains : frequent. Fl. April. Fr. May - June. Resembles 

 C. cephalophora, but the spikelets are less closely aggregated, and more bracteate ; the fruit 

 also is broader and less pointed, the scales are longer, and the whole plant is dark green. 



11. Carex siccata, Deio. Dry-spiked Sedge. 



Spikelets 4-8, elliptical, rather acute, approximated ; the highest androgynous, staminate 

 at the summit ; intermediate ones staminate ; the lowest one (sometimes 2 or 3), usually 

 fertile below and rather distant ; perigynia ovate-lanceolate, acuminate, appressed, rough on 

 the margin, bifid, many-striate, about the length of the ovate-lanceolate scale. — Dew. Car. 

 I. c. 10. p. 353. t. \.f. 18, and 14. p. 278 ; Torr. Cyp. p. 391 ; Beck, hot. p. 435 ; Kunth, 

 enum. 2. p. 377. C. pallida, C. A. Meij. Cyp. nov. p. 21. t. 8 (fide Boott) ; Kunth, I. c. 

 p. 395. 



Culm about a foot and a half high, slender, triquetrous, rough. Spikelets usually 6 or 7 ; 

 the terminal one much larger than the others ; the sterile closely appressed to the rachis, and 

 imbricated. Scales light brown, with a pale margin ; the lowest larger and bract-like. Peri- 

 gynium convex externally, flat on the inside, membranaceous, tapering to a long point, distinctly 

 scabrous on the margin. Achenium broadly ovate, lenticular, crowned with the somewhat 

 articulated style, which is slightly hispid upward. 



Western part of the State {Dr. Sarlioell). Professor Dewey correctly remarks that this 

 species resembles C. inteiiiiedia of Goodenough. 



