SALICACEAE. 
95 
16. Salix irrorata Anders. In canons and along streams from Colo, to N. 
M. —Alt. 6000-9000 ft.—Dry rocks, Cheyenne Mountain; Manitou; Cucharas 
Valley, near La Veta; South Cheyenne Canon; foot-hills, Larimer Co.; Los 
Pinos; Ironton Park, nine miles south of Ouray; Gunnison; Crested Butte, 
Gunnison watershed; Grizzly Creek; Sheep Creek, above Campton’s; Horse- 
tooth Gulch; Rist Canon; Howe’s Gulch. 
17. Salix Geyeriana Anders. In mountain valleys along streams from 
Wyo. to Wash., Colo, and Ore.—Alt. 8000-10,000 ft.—Mountains of Estes 
Park; Minturn; Columbine; Sargent’s; Pinkham Creek, Larimer Co. 
18. Salix macrocarpa Nutt. Along streams in the mountains from Wyo. to 
Wash, and Colo.—Alt. up to 10,000 ft.—Seven Lakes; Stove Prairie, Lari¬ 
mer Co. 
19. Salix perrostrata Rydb. In valleys and in wet places in the foot-hills 
from Hudson Bay to Alaska and Colo.—Alt. 1500-2700 ft.—Foot-hills, Colo¬ 
rado Springs; foot-hills west of Fort Collins; Los Pinos; South Cheyenne 
Canon; Ruxton; Green Mountain Falls; Ojo; Cimarron; Chicken Creek, 
West La Plata Mountains; Pike’s Peak Trail; Rist Canon; mountains north¬ 
east of Dolores; Boulder. 
20. Salix Bebbiana Sarg. (S. rostrata Richardson) In valleys and on 
hillsides from Anticosti to Alaska, N. J. and Calif.—Alt. 5000-10,000 ft.— 
Manitou; Ruxton Dell; Pike’s Peak; North Park, Larimer Co.; mountains 
of Estes Park, Larimer Co.; Horsetooth Gulch; Boulder; Beaver Creek. 
21. Salix Nuttallii Sarg. (S. Havescens Nutt.) Along streams and in wet 
valleys from Ass. and B. C. to N. M. and Calif.—Alt. 7000-11,000 ft.—Hills 
about Box Canon, west of Ouray; Wahatoya Canon; Little Kate Basin, La 
Plata Mountains; mountains, Larimer Co.; Artists’ Glen; North Cheyenne 
Canon; chaparral-covered hills southeast of Ouray; Stove Prairie, Larimer 
Co.; Mount Baldy; Barnes’ Camp on Little South; Redstone; Eldora to 
Baltimore; Empire. 
22. Salix pachnophora Rydb. In the mountains along streams, Colo, and 
N. M.—Alt. 7000-8000 ft.—Rico, Dolores Co.; along Uncompahgre River; 
near Ouray; Chambers’ Lake; Hahn’s Peak, Routt Co.; Rabbit-Ears. 
23. Salix brachycarpa Nutt. ( Salix desertorum stricta Anderson; S. stricta 
Rydb.) In springy places in the mountains from Que. to Alb. and Colo.— 
Alt. 7000-11,000 ft.—Twin Lakes; Pike’s Peak; Sheep Creek, above Camp- 
ton’s; near Higho; Veta Pass, Sangre de Cristo Range; Walden, Larimer 
Co. 
24. Salix pseudolapponum Seem. On mountain tops of Colorado.—Alt. 
9000-13,000 ft.—Gray’s Peak; Georgetown; Cimarron Pass; Alpine Tunnel; 
Mt. Abram, Ouray; Sierra Blanca; Little Kate Basin, La Plata Mountains; 
Mt. Hesperus, above timber line; West Spanish Peak; headwaters of Sangre 
de Cristo Creek; Twin Lakes; Bottomless Pit; east slope Pike’s Peak; Dead 
Lake; Tennessee Pass; bank of Michigan, North Park; mountains above 
Graymont; Eldora to Baltimore; Berthoud Pass. 
25. Salix glaucops Anders. In alpine bogs and springy places from Alb. to 
Yukon Terr., Colo, and Calif.—Alt. 7000-13,000 ft.—In var. glabrata Anders., 
the leaves are nearly glabrous above.—Mountains between Sunshine and 
Ward; Brush Creek, Custer Co.; mountains south of Ward, Boulder Co.; 
Bear Creek Divide, West La Plata Mountains; Alpine Tunnel; Mt. Abram, 
