309] FLORA. OF BOULDER, COLORADO I6I 



260. VICIA L. Vetch. 



648. Vicia sparsifolia Nutt. [V. linearis (Nutt.) Greene]. 

 Narrow-leaved vetch. 



Mesas and gulches about Boulder, 5600-6000 ft. (Daniels, 



334)- 



Manitoba and Alberta to Idaho; Kansas to California. 



649. V. dissitifolia (Nutt.) Rydb. [Lathyrus dissitif alius 

 Nutt.]. Remote-leaved vetch. 



In gulches and canons in the plains, mesas, and foothills, 

 5100-9000 ft. (Daniels, 107). 

 Nebraska to Colorado. 



650. V. oregana Nutt. Mountain vetch. 



Common throughout in canons and along the banks of 

 streams, 5100-10000 ft. (Daniels, 78). 



Minnesota to Saskatchewan and Washington ; Kansas 

 to California. 



651. V. producta Rydb. Small-flowered mountain vetch. 

 Gulches on east slope of Flagstaff Hill, 6000 ft. (Daniels, 



100). 

 Colorado to Utah ; New Mexico to California. 



261. LATHYRUS L. Vetchling. 



652. L. leucanthus Rydb. White-flowered vetchling. 

 Common in gulches and canons, 5700-7000 ft. (Daniels, 79). 

 Colorado to New Mexico. 



262. APIOS Moench. Ground nut. 



653. A. Apios Boulderensis Daniels. Nov. var. Boulder 

 ground nut. 



Differing from the typical eastern plant chiefly in the some- 

 what larger, thinner long-acuminate leaflets, which are nine 

 as well as seven in number, the somewhat smaller brownish 

 deep-violet flowers, which are densely granular under a lens. 

 No pods were secured, nor tubers from the rootstock, only 

 one vine being discovered, which it did not seem wise to up- 

 root for fear of exterminating the plant in the only locality 

 known for the ground nut in the Rocky Mountains. 



