PLANTS OF THE ARAPAHOE FOREST 
63 
Salicaceae 
Populus tremuloides Michx. Rocky Mountain national park, 9,000 feet; 
Spruce creek, 9,400 feet; Camp Uray, Grand River; Berthoud Pass below 
timber line. 
P. angustifolius James. Berthoud Pass; Empire; Golden. Common. 
P. deltoides Michx. Golden; Manitou. Common. 
Salix fragilis L. Cultivated at Golden. 
S. amygdaloides Anders. Golden. 
S. pseudomyrsmites Anders. Beaver bog, 9,000 feet; Camp Uray, 
Grand river, 9,000 feet; Spruce creek, 9,500 feet. 
S. monticola Bebb. Grand river. Rocky Mountain national park, 9,500 
feet; Specimen Mountain, 10,000 feet. 
S. saximontana Ryd. Specimen Mountain, 11,500 feet; Mount Byers, 
9,500 feet. 
S. brachycarpa Nutt. Specimen Mountain; beaver bog, west fork of 
St. Louis creek, 9,000 feet. 
Photo, by MacDonald 
Fig. 8. Alpine Thistle {Cirsium eriocephalum) and other alpine plants 
