232 UNIVERSITY OF MISSOURI STUDIES [380 



Alkali flats and dry plains about Boulder lake and Owen's 

 lake, 5100-5300 ft. (Daniels, 782). 



Minnesota to North Dakota ; Nebraska to Colorado. 



1039. S. nana Nutt. Dwarf golden rod. 



Dry slopes of Green Mountain, 6000-8100 ft. (Daniels, 825). 

 An allied form occurs on the plains. 

 Montana to Colorado and Arizona. 



1040. S. pulcherrima A. Nels. Prettiest golden rod. 

 Common on the plains about Boulder, 5100-6000 ft. (Dan- 

 iels, 983). Also mountains between Sunshine and Ward (Ryd- 

 berg). 



Minnesota to North Dakota; Colorado to Arizona. 



104 1. S. radulina Rydb. Harsh-leaved golden rod. 

 Plains, mesas, foothills and mountains, frequent, 5600-8000 



ft. (Daniels, 753). Also at Meadow Park (Rydberg). 

 Colorado to Utah. 



1042. S. trinervata Greene. Three-nerved golden rod. 

 Boulder Caiion, ascending at least as far as the Falls, 5500- 



7000 ft. (Daniels, 553). 



South Dakota to Wyoming; Colorado to Arizona. 



1043. S- mollis Bartl. [S. nemoralis incana Gray]. Hoary 

 golden rod. 



Mesas at foot of the Flat-irons, and foothills along Boulder 

 Cafion, 5500-8000 ft. (Daniels, 574). 



North Dakota to Montana ; Texas to Colorado. 



443. OLIGONEURON Small. 



1044. 0. canescens Rydb. [Solidago rigida humilis Porter]. 

 Hoary stiff golden rod. 



Common on the plains, 5100-6000 ft. (Daniels, 781). 

 Saskatchewan to Montana ; Nebraska to Colorado. 



444. TOWNSENDIA Hook. 



1045. T. grandiflora Nutt. Large-flowered Townsendia. 

 Common in rough hilly places throughout, 5100-8600 ft. 



(Daniels, 41). 



