258 UNIVERSITY OF MISSOURI STUDIES [406 



12 12. A. Leontodon Rydb. DANDELION AGOSERIS. 

 Mountainsides at Eldora, 8600-10000 ft. (Daniels, 991). 

 SOUTH DAKOTA to MONTANA, COLORADO to ARIZONA. 



1213. A. glauca (Nutt.) Greene [Troximon glaucum Nutt.]. 

 GLAUCOUS AGOSERIS. 



Abundant on the plains, 5100-6000 ft. (Daniels, 20). 

 SASKATCHEWAN to WASHINGTON ; COLORADO to UTAH. 



1214. A. parviflora (Nutt.) Dietr. [Troximon glaucum parri- 

 florum (Nutt.) Gray]. SMALL-FLOWERED AGOSERIS. 



Frequent about Boulder, and in meadows and grassy bogs at 

 Eldora, 5100-8600 ft. (Daniels, 622). 



NORTH DAKOTA to ALBERTA and COLORADO. 



1215. A. laciniata (Nutt.) Greene [Stylosanthus laciniatus 

 Nutt.]. CUT-LEAVED AGOSERIS. 



Boulder (Rydberg). 



WYOMING to IDAHO; COLORADO to CALIFORNIA. 



1216. A. humilis Rydb. Low AGOSERIS. 



Bogs at Eldora, 8600-9000 ft. (Daniels, 633). 

 WYOMING to COLORADO. 



12-17. A. rostrata Rydb. BEAKED AGOSERIS. 



Abundant on the mesas and foothills, 5700-9000 ft. (Daniels, 

 232). Also mountains between Sunshine and Ward (Ryd- 

 berg). A plant was gathered in Gregory Canon, which bore 

 two heads of flowers. 



COLORADO. 



484. TARAXACUM Hall. DANDELION. 



1218. T. Taraxacum (L.) Karst. [T. offidnale Weber]. COM- 

 MON DANDELION. 



Common in fields and along roadsides, 5100-7000 ft. (Dan- 

 iels, 261). Ward, 9200 ft. (Cockerell). 



EUROPE, thence to NORTH AMERICA. 



i2iS T /2. T. montanum Nutt. MOUNTAIN DANDELION. 

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

 MONTANA to COLORADO. 



485. LACTTTCA L. LETTUCE. 



