PINACE.E 



423 



This pine represents P. Strobus in the Pacific Coast region of 

 N. America, extending from S. British Columbia to the western 

 slopes of the Rocky Mountains in N. Montana, the coast region 

 of Washington and Oregon, the Cascades and Sierra Nevada 



Fig. M.— pin us MONTICOLA. 



a, part of minutely pubescent shoot witli leaves in clusters of five ; 6, winter bud and scale ; c, apex 

 of leaf ; (/, section of leaf ; e, seed. 



ranges in California. On the Californian Sierras it reaches an 

 altitude of 10,000 ft. and is often associated with P. Lambertiana. 

 Discovered by Douglas about 1831, it was apparently introduced 

 into cultivation at that time, although not gro^\Ti much until 

 further supplies of seed were sent to England by Lobb and others 

 some 20 years later. 



