20 1 ] FLORA OF BOULDER, COLORADO 53 



Subkingdom II. SPERMATOPHYTA. Seed plants. 



Class i GYMNOSPERMAE. 



Order 5. PINALES. 

 Family 6. PINACEAE Lindl. Pine family. 



14. PINTJS L. Pine. 



18. P. scopulorum (Engelm.) Lemmon [P. ponderosa scopu- 

 lorwn Engelm.]. Bull pine. 



Common on the higher mesas, foothills, and mountains, 

 5700-10000 ft. (Daniels, 97). 



South Dakota and Nebraska to Montana; Texas to 

 Arizona. 



19. P. contorta Murrayana (Greg. Com.) Engelm. Lodge 

 pole pine. 



Mountains about Ward, and between Sugarloaf Mt. and 

 Glacier Lake, 7000-10000 ft. (Daniels, 302). 

 Montana to Alaska; Colorado to California. 



15. APINTJS Necker. Cembra pine. 



20. A. flexilis (James) Rydb. [Pinus jlexilis James]. 

 Rocky Mountain white pine. 



Rare on high ridges of Green Mt.; also at Ward, 7300- 

 11000 ft. (Daniels, 771). 

 Alberta to Texas and California. 



16. PICEA Link. Spruce. 



21. P. Engelmanni (Parry) Engelm. Engelmann spruce. 

 Bear Canon; Boulder Canon near Falls; common upon the 



main range of the mountains, 7000 (Bear Canon) -1 1000 ft. 

 (Daniels, 294). 



Alberta to British Columbia; New Mexico to Arizona. 



22. P. Parryana (Andree) Sarg. [P. pungens Engelm.]. 

 Blue spruce. 



Common in canons throughout, 6500-10000 ft. (Cockerell); 

 Fourth of July Mine; South Boulder Canon (Ramaley). 

 Wyoming and New Mexico to Utah. 



