IOO UNIVERSITY OF MISSOURI STUDIES [248 



301. S. Bebbiana Sarg. [S. rostrata Richardson]. BEBB'S 

 WILLOW. 



Canons and mountain valleys, frequent, 5700-10000 ft. 

 (Daniels, 824). St.Vrain Canon (Coulter in Wabash College 

 Herb.). 



ANTICOSTI to ALASKA ; NEW JERSEY to CALIFORNIA. 



302. S. Scouleriana Barratt [S. Nuttallii Sarg. ; S. flavescens 

 Nutt.]. NUTTALL'S WILLOW. 



High alpine valley next to snow, above Bloomerville, 

 Boulder Canon, 5700-10000 ft. (Daniels, 321). Also from 

 Eldora to Baltimore (Rydberg). 



ASSINIBOIA to BRITISH COLUMBIA; NEW MEXICO to CALI- 

 FORNIA. 



303. S. brachycarpa Nutt. DWARF WILLOW. 

 Silver lake, 7000-11000 ft. (Ramaley). 

 QUEBEC to ALBERTA and COLORADO. 



304. S. pseudolapponicum Seem. FALSE LAPLAND WILLOW. 

 Above timberline, Arapahoe Peak, 11000-13000 ft. (Dan- 

 iels, 883). Also between Eldora and Baltimore (Rydberg). 



COLORADO. 



305. S. glaucops Anderson. GLAUCOUS WILLOW. 



Above timberline, Arapahoe Peak, 11000-13000 ft. (Dan- 

 iels, 937). Also mountains south of Ward, and between 

 Sunshine and Ward, (Rydberg). 



ALBERTA to YUKON; COLORADO to CALIFORNIA. 



306. S. chlorophylla Anders. GREEN-LEAF WILLOW. 

 Near Fourth of July mine, (Ramaley). 



LABRADOR and NEW HAMPSHIRE to ALASKA and COLORADO. 



307. S. petrophila Rydb. [S. arctica petraea Anderson]. 

 ROCK-LOVING WILLOW. 



Above timberline, Arapahoe Peak, 11000-14000 ft. (Dan- 

 iels, 951). 



NEW HAMPSHIRE to BRITISH COLUMBIA; COLORADO to 

 UTAH. 



