186 Rydberg : Studies on Rocky Mountain Flora 



South Dakota: Brookings, 1897, L. W. Carter; Hot Springs, 

 \^(^2, P. A. Rydberg, 8 28. 



Colorado: Fort Collins, 1895, C. S. Crandall. 



Indian Territory: Sapulpa, 1895, B. F. Bush, I2jf.g ; False 

 Washita, 1868, Edi^'. Palmer, ^61. 



Kansas: Riley Co., 1895, /. B. Norton, joj ; Manhattan, 



1887, W. A. Kcllennan ; Osborn Co., 1894, C. L. Shear, 28 ; 

 Fort Riley, 1892, E. E. Saj/e, ^j2. 



Nebraska: Lincoln, 1887, H. J. Webber; Fort Niobrara, 



1888, T. E. ]Vilcox ; Mrs. Austin ; Creete, G. D. Szveesey. 

 Missouri: St. Louis, i'^a^^, RieJd ; McDonald Co., 1891, i>. 



F. BiisJi. 



Illinois: Oquawka, 1873, H. N. Patterson. 



27. Senecio Neo-Mexicanus a. Gray, Syn. Fl. i": 392. 1884 



The original publication of this species is generally given as 

 Proc. Amer. Acad. 19 : 55, but no description is there to be found. 

 As far as I can find, the one in the S}'noptical Flora is the first 

 published. Probably more than one species is included in that 

 description and in the specimens cited below there are appar- 

 ently three different types, but it has been impossible for me to 

 find any constant characters by which to distinguish them. In 

 one of them the stem leaves are more or less lyrate-pinnatifid and 

 even the basal ones occasionally have a few lobes on the petiole, 

 while in the others the stem leaves are narrow and merely toothed. 

 The tomentum is sometimes deciduous, sometimes almost persis- 

 tent. It grows at an altitude of 1200-2500 m. [Plate 6, fig. 7.] 



New Mexico: Silver City, Pinos Altos Mts., 1880, E. L. 

 Greene ; between Santa Fe and Canoncito, 1897, A. A. & E. Ger- 

 trude Heller, 374^.; Organ Mts., 1895, E. O. JVooton ; P. V. LcRoy. 



Arizona: Fort Huachuca, 1892, T. E. WUeox ; 1876, E. Pal- 

 mer, 614 ; Santa Catalina Mts, 1883, C. G. Pringle ; San Francisco 

 Mts., 1 88 1, H. H. Rusby, 212; Mogollon Mts., 1887, E. A. 

 Meavns, j8 ; Squaw Creek, 1887, E. A. Mearns, lyi ; Santa Rita 

 Mts., 1 88 1, C. G. Pringle. 



28. Senecio salicinus sp. no v. 



A floccose perennial, with a short cespitose'caudex : stems sev- 

 eral, about 4 dm. high, simple below, striate and floccose : basal 



