OF ARTS AND SCIENCES, 71 



peduncled (peduncle one to fifteen inches long), the upper becoming 

 sessile, often two or three from an axil, the intermediate ones often 

 staminate at the top, the pistillate portions densely and evenly cylin- 

 drical, all erect, the staminate four to six or more in number and one 

 to four inches long ; perigynium small (a line and a half long), 

 yellowish green, elliptic or obovate, firm in texture, few-nerved, often 

 slightly compressed, squarrose, about the length of or shorter than 

 the stout and toothed awn of the scale : stigmas three. — California, 

 San Diego Co., Pringle^ San Juan Capistrano, J. C. Nevin ; Arizona, 

 Pringle ; Lower California, Guadeloupe Canon, Orcutt. The stoutest 

 Carex I know. 



* * Spikes not exceeding an inch and a half in length. 



31. Carex stenolepis, Torrey, Monogr. 420. 



C Frankii, Kunth, Enum. PI. ii. 498. 



C. Shortii, Steud. Nomen. Bot. 296. 

 Swamps and meadows ; Central Pennsylvania, Porter, to the upper 

 districts of Georgia, westward to Kentucky, Short, and southwestward 

 to Louisiana and Texas, Wright, Reverchon. 



32. Carex sqdarrosa, Linn. Sp. PI. 973. 



C. typhina, Michx. Fl. Bor.-Am. ii. 169. 

 C typhinoides, Schwein. An. Tab. 

 Bogs, New England to Georgia, and west to Michigan and Illinois; 

 N. W. Ai'kansas, Harvey ; Red River, Louisiana, Hale. 



Section II. TRACHYCHL^NiE, Drejer, Symb. Car. 9. Pe- 

 rigynium mostly thick and hard in texture, commonly scabrous or 

 hirsute, straight-beaked ; pistillate spikes compactly flowered, mostly 

 large, erect or nearly so ; staminate spikes one or more ; stigmas 

 three. — Large and coarse species, mostly paludose. A heterogeneous 

 section, originating in the Anomalce with very short and entire beaks 

 and terminating in the much-developed beaks of the Paludosae. The 

 Anomalae connect the section with the Granulares. C vestita, C. Ore- 

 gonensis, and O. Houghtonii are not paludose, and perhaps others of 

 the section are not. C Jiliformis and C acutiformis may be said to 

 represent the section. 



A. Shortiance. Terminal spike androgynous, staminate below ; perigynium 

 small and smooth, nearly beakless, entire. — Including one anomalous 

 species, which Dr. Boott prefers to associate with C. verrucosa, EU. 



33. Carex Shortiana, Dewey, Sill. Journ. xxx. 60. 



G. Shortii, Torr. Monogr. 407. 



C formosa, Kunth, Enum. PI. ii, 431. 



