14 Rhodora [JANUARY 
no. 64,690. (aa Upper Marias Pass, alt. 2440 m., August 4, 
1883, W. M. Canby, no. 44; Old Hollowtop, near Pony, alt. 2745 m., 
July 7, 1897, Raby "e Bessey, no. 4041. Wyomrne: Teton Mts., 
Oo 
Peak and vicinity, alt. 3350-4270 m., 1885, Patterson; Twin Lakes, 
1875, Brandegee; South Park, Wolf de Rothrock, nos. 343, 344; Mt. 
Ouray, alt. 3660 m., August 20, 1901, C. F. Baker, no. 841. Uran: 
Uinta Mts., alt. 3350 m , August, 1869, Watson, no. 173. ARIZONA: 
summit of Mt. Agassiz, ‘August, 1884, Lemmon, no. 3289. OREGON: 
cliffs of Wallowa Mts., alt. 2745 m. , July 31, 1899, Cusick, no. 2301a. 
Wasnincton: Cascade Mts. near Mt. Baker, July 16, 1898, J. B. 
Flett, no. 860; Engel Creek near Mt. Stewart, 1883, Brandegee, no. 
672. British CoLumMBIA: mountain summits, alt. 2290 m., Kicking 
Horse Lake, July, 1885, J. Macoun; summits of Selkirk Mts., alt. 
1675-2440 m., August 2-4, 1890, J. Macoun, nos. 13, 16; summit of 
Rocky Mts., alt. 2 2135 m., ‘August 18, 1890, J. Macoun, no. 15; s 
peak above. timber line, ‘alt. 2285 m., Selkirk Mts., July 26, 1905, 
H. Shaw, no. ets seen: of Mt. Arrowsnutls Vancouver L, 
July 16, 1887, J. M 
A. obtusiloba “Gide eax n. comb. A. obtusa Torr. Ann. Lye. 
W.-Y: n.-170 (1826) not ae Ase Pedem. ii. 114 (1785). A. arctica ¥ 
38). 
Torr. Bot. Cl. xxxiii. 140 (1906), as to first citation, Ar. obtusa Torr., 
but only i in small part as to other citations (see discussion below).— 
Alberta to New Mexico. The following belong here. ERT 
Sheep Mt. Waterton Lake, July 28-31, 1895, J. Macoun, no. 10,094. 
Montana: Bridger Mts., ‘August 21, 1902, W. W. Jones; 5 
Peaks, 1901, J. Vogel; Old Hollowtop, near Pony, alt. "2440 
July 7, 1897, Rydberg & Bessey, no. 4039. Wroune: stony i 
alpine parks, Brooklyn Lake, Albany Co., August, 1909, Aven N : 
no. 9235; open hillsides, Telephone Mines, Albany Co., ee 
1900, Aven Nelson, n 0. 7951; Little Bald Mt., Bighorn Mts. hls: 
the limit of tr on pees Peak, eae 18, 1870, E. L. Gre - 
Sierra ey “1877, Hooker & Gray; South Park, 1873, Wolf « 
Rothrock, no. 364; among rocks at 3660 m., mountain pe id, alt 
Como, July 31, 1895, Crandall & se no. 82; Mt. G ’ 
J 
C . 496; near ae 
Spe alt. —_ foes » August, 1899, C. F. Baker, te aM at Con 
Mexico, 1867, peiife no. a 

