337] FLORA OF BOULDER, COLORADO 1 89 



335. CENTTJNCTJLTJS L. Chaffweed. 



787. C. minimus L. Least chaffweed. 



Under pines, mesas south of Chautauqua grounds, Boulder, 

 5800 ft. (Daniels, 180). Not in Rydberg's Flora. 



Illinois and Minnesota to British Columbia; Florida 

 to Texas and Mexico: Europe: South America. 



336. DODECATHEON L. Shooting star. 



788. D. philoscia A. Nels. Shade-loving shooting star. 

 In the spray of Boulder Falls and along other deep canons, 



6500-8600 ft. (Daniels, 800). 

 Wyoming to Colorado. 



789. D. radicatum Greene. Many-flowered shooting star. 

 Common in deep canons, 6200-8000 ft. (Daniels, 274). 



Also from Eldora to Baltimore (Rydberg). Boulder Canon 

 (Coulter in Wabash College Herb.). 

 South Dakota to Wyoming ; Kansas to New Mexico. 



790. D. sinuatum Rydb. [D. radicatum sinuatum Rydb.]. 

 Wavy-leaved shooting star. 



Occasional in canons with the preceding, of which it seems 

 to be merely a wavy-leaved form, 6200-8000 ft. (Daniels, 



854)- 



Colorado. 



790^. D. paucifiorum (Durand) Greene. Few-flowered 

 shooting star. 

 Redrock lake, 10100 ft. (Ramaley & Robbins). 

 Mackenzie and Saskatchewan to Colorado. 



337. DROSACE A. Nels. 

 791. D. carinata (Torr.) A. Nels. [Douglasia Johnstoni Aven 

 Nelson]. Johnston's Douglasia. 

 Long's Peak (Aven Nelson), the type locality of Douglasia 

 Johnstoni. 

 Colorado. 



