374 



CYPERACEiE. 



Carex. 



rough 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, fl. 1. p. 36 ; 

 Muhl. gram. p. 221 ; Ell. sk. 2. p. 529 ; Dew. Car. I. c. 8. p. 265 ; Schwein. $ Torr. I. c. 

 p. 304 ; Beck, hot. p. 432 ; Darlingt. fl. Cest. p. 28 ; Kunth, enum. 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, Dew. 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. l.f. 18, and 14.. p. 278 ; Torr. Cyp. p. 391 ; Beck, hot. p. 435 ; Kunth, 

 enum. 2. p. 377. C. pallida, C. A. Mey. 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 ; I he 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. Sartwell). Professor Dewey correctly remarks that this 

 species resembles C. intermedia of Goodenough. 



