66 



FOREST TREES OF THE PACIFIC SLOPE. 



12 to 14 inches in diameter are from 75 to 80 years old. It is probably a short- 

 lived tree, rarely exceeding 150 or 200 years. Further study of its longevity is 

 desirable. 



Fig. 24. — Pinus muricata. 

 RANGE. 



California coast region from Mendocino County to San Luis Obispo County ; also 

 Lower California coast and island. 



California. — From Fort Bragg, Mendocino County (usually in widely separated 

 areas), to Tomales Point — north of San Francisco Bay, ranging from near sea level to 



