72 



FOREST TREES OF THE PACIFIC SLOPE. 



yellow late in autumn, when it is readily detected by its color on distant high, 

 inaccessible peaks and crests. The leaves, from 30 to 40 or more in a cluster, 

 are more or less 4-angled, and about 1 inch to If inches in length. A cross- 



Fig. 27. — Larix hialUi: a, seed. 



section shows one resin-duct in each of the two angles of the leaf. The cones 

 mature in one season and are ripe early in August, opening soon afterwards and 

 shedding their seed. By late autumn the cones have all fallen from the trees. 



