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, 1 1000-13000 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. ch.loropb.ylla 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. 



