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BOTANY. 



22D 



1 broad plumose seta^. Scirpus lacustris of the old world is said to differ from ours in liavlng a 



3-cleft style, but in our authentic European specimens the style is 2-cleft. 



Scirpus makitimus, Linn.; Tort. Cyp. p. 323. On the Kio Grande, and westward along the 



Gila to the Colorado. (N 



) The long creeping rhizoma produces one 



or more ovate farinaceous tubers about an inch in length. They are white inside, and covered 

 with dark brown scales which terminate in long filaments. 



FiMBRisTYLis SPADICEA, Vahl^ Emim. 2yp, 294 ; Torr. Cyp. p. 346. F. cylindrica, VaJil, I. c. 

 Leon Springs, western Texas ; Bigeloio. 



IsoLEPis CAPILLARI3, Boem. & Scliultes, Syst. 2, p. 118; Torr. Gyp. p. 350. Fimbristylis capil- 

 laris, Gray, Man. ed. 2, p. 503. Oak woods on the Colorado, Texas; Wright, (No. 1936 in 



m 



part.) Var. culmo 1-2-stachyo. Base of the Limpio mountains, and near the Copper Mines of 



J New Mexico; Bigelow. (No. 1936, in part, Wright,) Culms 3-6 inches high, often bearing 



only a single spike, and very rarely more than two ; the primary one solitary and the other on 

 a ray 2-3 lines long. Involucre of two very unequal leaves, one of which is longer than the 



ray, the other mostly shorter than the sessile spike. Scales and nutlets as in the ordinary form 

 of the plant. 



DicHROMENA LEUcocEPHALA, Mtckx. Fl. 1, p. 37 ; To7T. Cyp. p. 357. Near the Guadalupe 

 river, ahove Victoria, Texas; Schott. (No. 716, Wright.) 



Hemicarpha subsquarrosa, NeeSj Gyp. in Endl. & Mart. FL Bras. p. 61^ t. 4, /. 1 ; Torr. FL 

 Neiv Yorhy 2,p, 362. Scirpus suhsquarrosus, -3/w7e?. Gram. p. 39, Isolepis subsquarrosa, >Sc/irarf.; 

 Torr. Cyp. p, 51. Hills near the Copper Mines of New Mexico. (No. 715 and 1936, Wright.) 



Cladil'M EFFUSUM, Torr. Cyp. p. 374. Schoenus effusus, Swartz; Muhl. Gram. p. 13. Wet 

 places in elevated valleys on the Limpio ; Bigeloio. Western Texas ; Wright. 



GENUS CAREX. 



BY PROFESSOR C. DEWEY. 



r 



Carex Hoodii, Boott^ in Hook. FL Bor.-Amer. 2, p. 211, t. 211. Copper Mines, New 

 Mexico; Bigeloio. 



Carex Douglasii, Boott, L c. t. 214. Copper Mines and other parts, New Mexico; Bigelow. 



Carex marcida, Boott^ I. c. t. 213. River hanks near San Luis Key, California, March; Parry. 

 San Bernardino^ Sonora, and along the Gila, June; Thurher. Camp Tezotat, Sonora; ThurheVy 

 Schott. 



Carex siccata, Deioey in Sill. Joiirn. 29,^. 278, t. F.f. 18, & 14, _p. 353. C. pallida, Meyer. 

 Chihuahua ; Parry. 



Carex festiva, Dewey in Sill. Jour. 29, p. 351, t. W. /. 71. Monterey, California, April ; 



Parry. 



Carex cephalophora, Willd. Sp. 4, jp. 220. In woods, western Texas ; Wright. 



Carex Hookertana, Deioey in SilL Jour. 29, p. 248, t. X.f. 75. Copper Mines and Rio Mim- 

 hres, New Mexico ; Bigeloio. The specimens are numerous, large and small formSj and are well 

 characterized. 



Carex LiDDONi, ^00^^, iw Hooh. FL Bor.-Amer. 2, p. 214, t. 215. Copper Mines, May; 

 Thurher. 



Carex monticola (Dewey): epicis distinctis erectis breviusculis ohlongis ; staminifera terminal! 



