54 UNIVERSITY OF MISSOURI STUDIES [202 



17. PSEUDOTSUGA Carr. Red fir. 



23. P. mucronata (Raf.) Sudw. [P. Douglasii Carr.]. 

 Douglas spruce. 



Abundant on the foothills and mountains; some trees have 

 green foliage, others glaucous blue, 6000-10000 ft. (Daniels, 

 142). 



Alberta to British Columbia; Texas to Mexico and 

 California. 



18. ABLES Miller. Balsam fir. 



24. A. lasiocarpa (Hook.) Nutt. Western balsam fir. 

 North slope of Green Mt. ; Bear Canon; Boulder Canon 



near Falls and above them; common on the main mountain 

 range, 7000 (Bear Canon) -11000 ft. (Daniels, 303). 

 Alberta to Alaska; New Mexico to Arizona. 



Family 7. JUNIPERACEAE Horan. Juniper family. 



19. JUNLPERUS L. Juniper. 



25. J. Sibirica Burgsd. Mountain juniper. 



Mesa at the foot of the Flat-irons. 5700-6000 ft. (Daniels, 

 182). Mountains between Sunshine and Ward (Rydberg). 



Labrador to Alaska; Massachusetts and Michigan to 

 Utah: Europe: Asia. 



20. SABLNA Haller. Savin. 



26. S. scopulorum (Sarg.) Rydb. [Juniperus scopulorum 

 Sarg.]. Rocky Mountain red cedar. 



Hij^h mesas and mountain crags; some trees have green 

 foliage, others glaucous blue, 5700-8500 (Daniels, 217). 



Alberta to British Columbia; Texas to Arizona and 

 Oregon. 



