UNITED STATES DEPARTMENT OF AGRICULTURE 



Contribution from the Forest Service 

 HENRY S. GRAVES, Forester 



Washington, D. C. 



PROFESSIONAL PAPER 



December 30, 1916 



SUGAR PINE 



By Louis T. Laesen, Forest Examiner, and T. D. Woodbury, Assistant District 



Forester 



CONTENTS. 



Page. 



Importance of sugar pine 1 



Geographical and commercial range 2 



Habit and root system 3 



Bark, leaves, fioTvers, and seed 3 



Size and longevity 4 



Susceptibility to injury and disease 4 



SUvical requirements 7 



Reproduction 8 



Forest types 9 



The vood 10 



Page. 



Logging 12 



Milling 13 



Values and grades of lumber 16 



Markets 20 



Uses. 20 



Stumpage prices 23 



Growth and yield 24 



Management 36 



Management of private timberlands 35 



Appendix ". 37 



^ 



IMPORTANCE OF SUGAR PINE. 



Sugar pine {Pinus lambertiana Dougl.) was first recognized by 

 David Douglas, of the London Horticultural Society, on the head- 

 waters of the Umpqua River in Oregon, October 26, 1826. The tree 

 was given the specific name lamhertiana in honor of Douglas's friend 

 Aylmer Bourke Lambert, a founder and vice president of the Linnean 

 Society of London and the author of a prominent work on pines. 



Sugar pine is the most valuable cojmmercial timber tree on the 

 Pacific coast, and its relative value among all the conifers of the world 

 is very high. This is attributable partly to the characteristic straight- 

 ness and unusual clear length of the trees and partly to the excellent 

 physical qualities of the wood, which adapt it admirably to high- 

 class uses in manufacture and trade. 



Commorf;ially, sugar pine may be considered, like the redwood, as 

 essentially a California tree. Although it occurs in southern Oregon and 

 in Lower Cahfornia, it is relatively unimportant in both of these regions. 

 The total stand in Oregon is estimated at approximately 3 bilhon 



\oTK. — This bullolln draoribos tho sugar pIno, its growth, range, and u.scs in tlio for;n lA lumber, and is 

 of interest to foreslftr.s and wotxl u.sfrs generally. 

 5o3M)°— Bull. 420—10 1 



