126 UNIVERSITY OF MISSOURI STUDIES [274 



Order 22. PAPAVERALES. 

 Family 49. PAPAVERACEAE Juss. Poppy family. 



179. PAPAVER L. Poppy. 



450. P. Argemone L. Rough-fruited poppy. Wind rose. 

 Escaped into streets and plains near dwellings, 5500-5600 ft. 



(Daniels, 200). 

 Europe, thence to the United States. 



180. ARGEMONE L. Prickly poppy. 



451. A. intermedia Sweet. White prickly poppy. 

 Abundant on the plains, mesas, and open meadows in the 



foothills, 5100-7500 ft. (Daniels, 85). 



South Dakota to Wyoming; Texas to Mexico. 



452. A. hispida Gray [A. bipinnatifida Greene]. Hairy prick- 

 ly poppy. 



Plains and foothills near Boulder, 5100-9000 ft. (Rydberg). 

 Wyoming to New Mexico and Utah. 



Family 50. FUMARIACEAE DC. Fumitory family. 



181. CAPNOIDES Adans. Corydalis. 



453. C. aureum (Willd.) Kuntze [Corydalis aurea Willd.]. 

 Golden corydalis. 



Rather frequent in rocky places throughout, 5100-10000 ft. 

 (Daniels, 82). Also in the mountains between Sunshine and 

 Ward, and at Ward (Rydberg). Long's Peak (Coulter in 

 Wabash College Herb.). 



Nova Scotia to Alaska ; Pennsylvania to California. 



454. C. montanum (Engelm.) Britton [C. pachylobum 

 Greene; Corydalis aurea occidentalis Gray]. Mountain 

 corydalis. 



Near Boulder, and in the mountains between Sunshine and 

 Ward (Rydberg). 



South Dakota to Utah ; Missouri to Texas and Arizona. 



