26 MISCELLANEOUS CIRCULAR 92, U. S. DEPT. OF AGRICULTURE 



of Shasta County, California, on the South Fork of Clark Creek (tributary of 

 Pitt River), about 8 miles northwest of Cayton Post Office. (Discovered by 

 W. H. Snell, Southern Pacific Railroad timber cruiser, and reported through 

 Forest Service District 5). 



NAMES IN USE 



Engelmann's Spruce (Utah, Idaho). 

 Balsam (Utah). 



White Spruce (Oreg., Colo., Utah, 

 Idaho). 



White Pine (Utah, Idaho). 

 Mountain Spruce (Mont.). 

 Arizona Spruce (Cal. lit.). 

 Silver Spruce (Colo.). 



VARIETIES DISTINGUISHED IN CULTIVATION 



Picea engelmannii griseifolia Sud- Picea engelmannii minutifolia Sud- 



worth. worth. 



Picea engelmannii argyrophylla Sud- 



worth. 



*Picea pungens Engelmann. Blue Spruce. 



Range. — Central Rocky Mountain region — Colorado, eastern Utah, southern 

 and northwestern Wyoming, and northern New Mexico (Santa Fe National For- 

 est), also in Datil and Gila National Forests — fide F. Grubb; Apache, Lincoln 

 National Forest and Arizona (Apache National Forest — fide J. D. Guthrie; Kaibab 

 National Forest — fide S. S. Stewart; Coconino National Forest — fide W. M. Drake). 



Note on nomenclature. — Formerly designated as Picea parryana (Andre) 

 Parry. 



names in use 



Parry's Spruce (Utah). 



Blue Spruce (Colo.). 



Spruce. 



Balsam (Colo., Utah). 



White Spruce (Utah, Colo.). 



Silver Spruce (Colo.). 

 Colorado Blue Spruce (Colo.). 

 Prickly Spruce (lit.). 

 Water Spruce (Colo.). 

 Colorado Spruce (Colo.). 



varieties distinguished in cultivation 



Picea pungens glaucescens Sudworth. 

 Picea pungens cyanea Sudworth. 

 Picea pungens argentea Beissner. 



Picea pungens glauca pendens Sud- 

 worth. 

 Picea pungens glauca kosteri Hort. 8 



*Picea sitchensis (Bongard) Carriere. Sitka Spruce. 



Range. — Coast region (extending inland about 50 miles) from the east end of 

 Kadiak Island and Alaska to northern California (Mendocino County); in 

 Washington as far inland as the Nisqually River. 



NAMES IN USE 



Tideland Spruce (Cal., Oreg., Wash.). 



Menzies' Spruce. 



Western Spruce. 



Great Tideland Spruce (Cal. lit.). 



Sitka Spruce (trade). 



Yellow Spruce (trade). 



W T estern Sitka Spruce (trade). 

 Silver Spruce (trade). 

 Sequoia Silver Spruce (trade). 

 Spruce (trade). 

 West Coast Spruce (trade). 



Picea breweriana S. Watson. Weeping Spruce, 



Range. — Northern California (Siskiyou Mountains), very local, and southern 

 Oregon; also at the head of Illinois River in the Oregon coast ranges. 



Weeping Spruce. 

 Brewer's Spruce. 



NAMES IN USE 



Siskiyou Spruce (Germ. lit.). 



8 One of the best known and popular of the cultivated forms of Picea pungens is a grafted plant known 

 in the nursery trade as "Picea pungens var. glauca Kosteri," "Koster's Blue Spruce." 



