'211 



Ell.) New Brunswick (Fowler) and Wisconsin to Florida (Cur- 

 tiss, N. A. Plants, No, 3052) and Texas throughout eastern 

 North America ; westward to California and extending north- 

 ward along the Pacific coast to Alaska (J. O, Rainer, 187 1) ; also 

 in Mexico, South America, southern Europe to the Cape of Good 

 Hope, and in Australia. 



Var. inacrostachyiiSy Boeckl. (C hitescens, Torr. and Hook, 

 Ann. Lye, iii., 433). Florida (Chapman), Texas (C. Wright, 

 1849, No. 705 ; Drummond, 3d Coll., No. 452), San Diego, Cal., 

 (Orcutt, No. 1 3 14.) 



Var. ANGUSTISPICATUS, n. van Spikelets narrowly linear, 

 about one line wide and three-fourths of an inch long; a well- 

 marked form. Kentucky (Short), Missouri (H. Eggert), Wash- 

 ington, D C, (Vasey), Lexington Co., S. C, (J. Donnell Smith.) 



Var. Hermann:. {^C. Hervianni, Buckley; C. pJiymatodes, 

 var. Hermanni, Watson). Kern River, Cal., (Blake, in Torrey 

 Herbarium) ; Bank of San Joaquin (Lemmon, Flor. Cal., 1509.) 

 41. C. HalLII, n. sp. Culm triangular, 2 to 3 feet high ; 

 leaves elongated, 2 to 3 lines wide ; involucre of several leaves, 

 one of them elongated far beyond the others and reaching a 

 length of a foot or more ; umbel more or less compound, of 5 or 

 6 elongated rays and several shorter ones; involucels setaceous; 

 spikelets linear, 9 to 15-flowered, arranged in loose heads; 

 glumes ovate, acute, strongly 7 to 9-nerved, dark reddish-brown, 

 with lighter colored margins and apices; achenium triangular, 

 linear. Rootstocks scaly. 



Texas (E. Hall, PI. Tex., No. 685, distributed as C. pJiyuia- 

 iodes, var.) ; valley of the lower Rio Grande (Buckley) ; Indian 

 Territory (E. Palmer, No. 353). 



t t Annual or perennial ; roots fibrous, but stems often liard and corm-like at 



the base. 



42. C. strigostis, L. [C. Micha?Lviamis, Schultes, not of 

 Torrey, fide Boeckeler ; C. flavicomns, Michx., not of Vahl ; C. 

 stenolepis, Watson, Bot. Cal., not of Torrey.) Canada and Min- 

 nesota to Florida (Curtiss, N. A. Plants No. 1820, distributed as 

 C. stenolepis?) and Texas, throughout eastern North America; 

 also in California. Among the many forms of this variable 

 species I think the following may be distinguished : 



