344 APPENDIX VIII 



Common in Northern California, between the parallels of 40 and 43, 

 in dry, barren sandy soils. Trunks 150 to 200 feet high, varying from 

 20 to nearly 60 feet in circumference. Bark smooth, light brown colour 

 bleached like on the north side. Cones 12 to 17 inches long, 9 to 11 

 round, erect the first year, pendulous the second. Seeds ripe in Sep- 

 tember, eaten by the native tribes on river. 



11. P. monticola. Foliis quinis rigidis, vaginis brevissimis, strobilis 

 sessilibus crassis cylindricis, squamis rotundatis. 



Flowers in April and May ? Fruit ripe in September. 



Leaves five together, rigid, finely serrated, somewhat glaucous, two 

 and a half inches long with a very short sheath. Flowers male and female 

 unknown. Cone, sessile, cylindrical, nearly straight, obtuse at the apex, 

 five to six inches long, one and a half to two inches in diameter, light 

 brown when ripe. Scales rounded, flat, entire. Seeds four lines long and 

 two broad, oval. Wing falcate, two and a half times the length of the 

 seed, fuliginous, with minute dark veins; cotyledons 11. 



This species is intermediate between P. Lambertiana and P. Strobus. 

 Like the former the leaves are more rigid, and less glaucous than P. Strobus, 

 and are somewhat shorter than either species. The cones are consider- 

 ably shorter, nearly double the thickness, straight, obtuse pointed, with 

 larger and flatter scales, more rounded at the apex, lying more com- 

 pactly over each other and yielding a less copious rosin, which, instead of 

 being whitish with a blue tint and clammy during the intense heat of 

 summer, the present j yields a hard, candied, bright amber-coloured rosin; 

 the seeds never, as it were, glued to the inside of the scales, which is con- 

 stantly the case in P. Strobus. 



The bark of the young trees is smooth and nearly olive-green ; that 

 of the full-grown trees, smooth, light grey, peeling off in flakes. The 

 wood is very light, white, soft, even-grained, smooth, easily wrought, con- 

 taining fewer and more minute resinous reservoirs than P. Strobus, and 

 on this account may be less valuable. A handsome tree of large dimensions, 

 particularly in aqueous deposits consisting of decayed vegetable sub- 

 stances in the mountain valleys which are washed by the torrents from 

 higher altitudes, also in rocky, bare, thin soils it particularly abounds. 

 They grow immensely large, frequently 5 feet in diameter, and a hundred 

 and sixty feet high, and, as is the case with many others, they naturally 

 prune themselves, leaving a clean straight trunk, without a single branch, 

 exceeding one hundred feet. 



A common tree in the mountainous districts of the Columbia, from 

 its confluence with the sea in 46 19' N. Lat. to its source in 52 30' ; also 

 on the banks of Flathead River, and the western base of the Rocky 

 Mountains. 



A truly distinct and beautiful species intermediate between the present 

 and Pinus Lambertiana, exists with cones as long as, if not longer than 

 it, of an elegant slender taper form about 2 inches in diameter, it was 

 only seen on one of my journeys to the mountains near the base of Mount 

 St. Helens, I never had it in my power to procure perfect specimens of 

 this desirable tree. 



