PINACE^ 373 



received. It may be expected to thrive throughout the south of 

 England, but is more suitable for warm and sheltered gardens 

 than for cold and exposed places. Moist but well-drained loamy 

 soil is required for its proper development. In this country it 

 can only be regarded as a decorative tree. In a few places it has 

 seeded freely, the seeds having fair vegetative powers. 



At Westonbirt, the seat of Lieut. -Col. Sir G. Holford, there is a 

 specimen 70 ft. high and 7 ft. 2 in. in girth at 5 ft. above the 

 ground. Many seedUngs have been raised from it. 



Shaw, The Genus Pinus, 30 (1914) ; Elwes and Henry, loc. cit. v, p. 1017 (1910). 



Pinus Balfouriana, Jeffrey. 

 Fox-tail Pine. 



Balfour Pine. 



An alpine tree attaining a maximum height of 90 ft. with a 

 trunlc up to 15 ft. in girth, but frequently less than 50 ft. high, 

 with a cone-shaped crown. Bark of young trees thin, smooth, 

 greenish, becoming ridged and scaly on older specimens. Young 

 shoots stout, yellowish brown, clothed with minute, reddish 

 brown hairs. Winter huds ovoid, about \ in. long with closely 

 pressed scales. Leaves in fives, persisting many years, densely 

 crowded on the branchlets, incurved, rigid, spreading equally all 

 round, about 1| in. long, margin entire, apex sharp-pointed, 

 white with hues of stomata on the inner surfaces, shining green 

 on the outer side, resin ducts marginal ; basal sheath membranous, 

 splitting into 5 segments, which become reflexed and form a 

 rosette around the base of the leaf-cluster, as in P. cembroides. 

 Cones sub-terminal, spreading, cylindric-conic, 3|-5 in. long, 

 1 1-2 in. broad, without stalks ; scales narrow, elongated, the 

 exposed part convex and transversely keeled, with a minute 

 incurved prickle. Seed about | in. long, with a wing 1 in. in 

 length. 



P. Balfouriana is distinguished from all other five-leaved 

 pines, except P. aristata, by its short incurved leaves with partly 

 deciduous sheaths, and from P. aristata by its leaves being without 

 resinous exudations and by the different cones. 



This species is confined to the mountains of California, where 

 it is found in two distinct stations, one on the Northern Coast 

 Range and the other on the Southern Sierras. It often grows 

 at the timber line, and occasionally reaches an altitude of 11, 000 ft. 

 Discovered by Jeffrey in N. California in 1852, and introduced 

 by him soon afterwards through the Scottish Oregon Association. 



Wood fight, soft and brittle, with orange-brown heartwood 

 and pale yellow sapwood. It has little economic value and is 

 only of local use. 



P. Baljouriana is rarely seen in cultivation in the British Isles. 



