38lJ FLORA OF BOULDER, COLORADO 233 



SOUTH DAKOTA to WYOMING; OKLAHOMA to COLORADO. 



1046. T. exscapa (Richardson) Porter [T. sericea Hook.]. 

 SILKY TOWNSENDIA. 



Common at Boulder (Cockerell). 



SASKATCHEWAN to MONTANA ; TEXAS to NEW MEXICO. 



445. EUCEPHALUS Nutt. 



1047. E - Engelmannii (Gray) Greene [Aster Engelmannii 

 Gray]. ENGELMANN'S ASTER. 



In canons about Eldora, 8500-10000 ft. (Daniels, 841). 

 MONTANA to BRITISH COLUMBIA; COLORADO to WASHING- 

 TON. 



1048. E. glaucus Nutt. [Aster glaucus (Nutt.) T. & G.]. 

 GLAUCOUS ASTER. 



Hills adjoining Boulder Canon, and on the slopes of Green 

 Mountain, local, 6000-8000 ft. (Daniels, 569). Also moun- 

 tains between Sunshine and Ward (Rydberg). 



WYOMING to COLORADO and UTAH. 



446. ASTER L. STARWORT. 



1049. A - Underwoodii Rydb. UNDERWOOD'S ASTER. 



Canons and mountain sides at Eldora, 8500-10000 ft. (Dan- 

 iels, 1025). Also Eldora to Baltimore (Rydberg). 

 WYOMING to COLORADO. 



1050. A. Nelsonii Greene. NELSON'S ASTER. 



Subalpine valley at Eldora, 8600-8700 ft. (Daniels, 861). 

 WYOMING to COLORADO. 



1051. A. violaceus Greene. VIOLET ASTER. 

 Canons at Eldora, 8600-8700 ft. (Daniels, 554). 

 COLORADO. 



1052. A. exiguus (Fern.) Rydb. [A. ciliatus Muhl.] CILIATE 

 ASTER. 



Common on the plains and foothills, 5100-7000 ft. (Dan- 

 iels, 999). Also in Sunset Canon (Rydb.). 



VERMONT to WASHINGTON ; PENNSYLVANIA to ARIZONA and 

 MEXICO. 



