ENUMERATION OF CONIFERS 



191 



Among the Pinacese are some of our most valuable timber trees; e. g., 

 cedar, arbor- vitse, spruce, fir, hemlock, and redwood. The resin from various 

 pines when distilled yields spirits of turpentine and rosin; when dry-distilled, 

 it yields tar. Venice turpentine is the 

 resinous exudation of European 

 larches; Canada balsam that of Abie^i 

 balsamea. Dammar resin is from the \ \\ 



Malayan Agath 



29. Structure in Pinacese. Lower, cone of Pseudotsuga taxifolia, with the two seeds 

 under a scale at e. Above, staminate cone of pine, with a separate stamen at a. 



is the semi-fossilized resin o" Agathis australis of Australia and New 

 Zealand. Sandarac resin is from Tetraclinis articiilata of northwestern 

 Africa. Amber is the fossilized resin of prehistoric conifers around the 

 Baltic. Oil of savin is from the leaves and twigs of Juniperus Sabina, 

 and oil of cedar from Thuja occidentalis. Juniper berries, from Juniperus 



