196 FOREST TREES OF THE PACIFIC SLOPE. 



cabinet work. As a forest tree, it is only of secondary importance, on account 

 of its rarity and the fact that larger and more generally useful timber trees 

 grow abundantly in the same range. Through its remarkable tolerance of 

 dense shade it can assist in forming low protective cover in moist coves and 

 canyons and at the heads of streams. 



Longevity. — Age limits of this yew have not been fully investigated. Growth 

 in height and diameter are very slow, especially under deep shade, where, how- 

 ever, it maintains itself most persistently, indicating that it is long-lived. 

 Few representative sizes have been studied. Trees 6 inches in diameter are 

 from 75 to 90 years, while those from 12 to 20 inches in diameter are from 140 

 to 245 yesys old. The largest trees are believed to be about 350 or 375 years old. 



BANGE. 



Pacific coast region south from the southern tip of Alaska (Annette and Oravina 

 Islands) and east to Selkirk Mountains ; through western Oregon and Washington to 

 California (coast ranges south to southern Lake County and western slopes of Sierra 

 Nevada to Tulare County) ; mountains of eastern Washington and Oregon and Montana 

 (east to western slope of Continental Divide, south at least to south end Bitterroot 

 Mountains, Idaho, and Swan Lake, Montana). 



Alaska. — Noted only on Annette and Gravina islands at southeastern end, hut prob- 

 ably also on neighboring islands and mainland. 



British Columbia. — Islands and sea side of Coast Range, extending some distance 

 up Fraser River and reappearing farther east in Selkirk range. Queen Charlotte 

 Islands, confined to borders of inlets ; noted on Cumshewa Inlet from Clew to head of 

 West Arm, on shores of Prevost Island and south end of Moresby island. Skidegate 

 Inlet, and near Massett. On mainland noted on lower Skeena River, on Fraser River 

 up to Chapmans Bar near Suspension Bridge, and Coquihalla River up 20 miles above 

 Hope. Vancouver Island common near coast, noted from sea level to 900 feet on 

 southwest end in Renfrew district and near "Victoria. Farther east on both sides of 

 Selkirk Range north to Beaver Creek at 3,500 to 4,000 feet ; noted on Kootenai Lake 

 and west of it between Sproats Landing and Nelson. 



Washington. — Douglas fir forests west of Cascades and moister parts of yellow pine 

 forests east of Cascades, extending higher on both sides of the range into western 

 white pine forest (at sea level to 5,000 feet). Eastward through mountains of northern 

 and eastern parts of State. (West) Washington National Forest generally below 3,000 

 feet. (East) Washington National Forest only detected on Stehekin River, in Horse- 

 shoe Basin, at Nason City (Chelan County), and in some mountain passes at 3,300 

 to 5,000 feet. Yakima division Washington National Forest up to 6,000 feet, noted in 

 Kittitas County. Mount Rainier National Forest generally below 4,200 feet ; locally 

 noted on upper Nisqually River, Mount Rainier between Longmire Springs and Paradise 

 Park, and on a summit 8 miles southeast of Mount Rainier at 6.000 feet. Olympic 

 Peninsula common ; noted at Arbutus Point, in Queniult Indian Reservation and on 

 Admiralty Inlet at Port Townsend and at Tort Ludlow. Blue Mountains and infre- 

 quently along streams near Pullman (Whitman County). 



Oregon. — West side of Cascades and Blue Mountains up to 6,000 feet. Not detected 

 in Coast Range. Cascade (North) National Forest, west side below 2,100 feet in Doug- 

 las fir forest, but occasionally reaching 5,900 feet : noted locally at Portland, Clackamas 

 River Canyon, between Portland and Mount Hood, and south of Mount Hood on Camas 

 Prairie. Cascade (South) National Forest west side of Cascades and north side of 

 Siskiyous ; locally noted near Sawtooth Mountain (T. 25 S., R. 6 E. ) above 6,000 feet, 

 road from Rogue River to Crater Lake at 3,500 feet, headwaters of Rogue River in 

 Cascades and of Bear Creek in Siskiyous, especially T. 38 S., R. 4 E. 



California. — Northern coast ranges from western Siskiyou and Humboldt counties 

 southward to Mendocino, Mendocino County, and Mount St. Helena, Lake County. Not 

 detected in Del Norte County and in general not extending west quite to coast ; east 

 to Marble Mountain and upper McCloud River (Siskiyou County) ; occurs in ravines 

 from a little above sea level to 6,000 feet. Siskiyou County, noted in Klamath National 

 Forest, on west slope Marble Mountain on Russian Creek, and on east slope Salmon 

 River Mountains at 1,800 to 3,200 feet. Humboldt County, noted on west slope Trinity 

 Mountains above Hoopa Valley as low as 4,000 feet, west of Hoopa Valley on trail to 

 Redwood Creek, between Redwood Creek and Blue Lake, canyon South Fork Van Dusen 

 River, Little Van Dusen, and a few miles from Briceland. Mendocino County, seaward 

 side of Coast Range in redwood forest for 10 miles east of Westport and at a point 



