y 



204 UNIVERSITY OF MISSOURI STUDIES [352 



370. ONOSMODIUM Michx. False gromwell. 



875. 0. occidentale Mackenzie. Western false gromwell. 

 Common on the plains and mesas, 5100-6000 ft. (Daniels, 



183). Also at Longmont (Rydberg). 



Manitoba to British Columbia; Missouri to Texas and 

 Utah. 



371. LYCOPSIS L. Bugloss. 



876. L. arvensis L. Small bugloss. 



Roadsides near entrance to Boulder Canon, 5400-5500 ft. 

 (Daniels, 165). Not in Rydberg's Flora. 

 Europe and Asia, thence to North America. 



Family 96. VERBENACEAE St. Hil. Vervain family. 



372. VERBENA L. Vervain. 



877. V. hastata L. Blue vervain. 



Along streams in the plains, but ascending Boulder creek 

 for a considerable distance into the foothills, 5100-6500 ft. 

 (Daniels, 579). 



Nova Scotia to British Columbia; Florida to Califor- 

 nia. 



878. V. bracteosa Michx. [F. rurfw Greene]. Large-bractei> 



VERVAIN. 



Common in waste places, and on the plains, 5100-6000 ft. 

 (Daniels, 2). 



Michigan to Alberta and British Columbia; Florida to 

 California. 



878a. V. bracteosa albiflora Cockerell. Nov. var. White- 

 flowered large-bracted vervain. 

 Differs from the type in having white flowers. Campus of 

 the University of Colorado, July 15, 1908 (Cockerell). 



879. V. ambrosifolia Rydb. Ragweed-leaved vervain. 

 At Boulder, and in Boulder Co. (Rydberg). 



South Dakota to Colorado; Texas to Arizona and Mex- 

 ico. 



