Chapter 4 No.4

Sugar Pine.

Sugar refers to sweetish exudation.

Pinus lambertiana Douglas.

Pinus, the classical Latin name; lambertiana, from the botanist, A. B. Lambert, whose chief work was on Pines.

Habitat.

Habitat: (See map); grows on high elevations (5,000'), best in northern California.

Characteristics of the Tree: Height, 100'-300'; diameter, 15"-20"; branches, in remote regular whorls; bark, rich purple or brown, thick, deep irregular fissures making long, flaky ridges; leaves, stout, rigid, in bundles of five; cones, 10"-18" long.

Appearance of Wood: Color, pinkish brown, sap-wood, cream white; non-porous; rings, distinct; grain, straight; rays, numerous, obscure; resin ducts, numerous, large and conspicuous.

Leaf.

Physical Qualities: Weight, very light (61st in this list); 22 lbs. per cu. ft.; sp. gr. 0.3684; strength, weak (59th in this list); elasticity, medium (56th in this list); soft (53d in this list); shrinkage, 3 per cent.; warps little; durable; easily worked; splits little, nails well.

Common Uses: Carpentry, interior finish, doors, blinds, shingles, barrels, etc.

Remarks: Exudes a sweet substance from heart-wood. A magnificent and important lumber tree on Pacific coast.

Cross-section, magnified 37? diameters.

Radial Section, life size.

Tangential Section, life size.