Key for the Identification of Woods 837 



presence on longitudinal surfaces of brownish lines (resin ducts) from a frac- 

 tion of an inch to several inches long. 

 (ai) Heartwood darker than the sapwood. 



(a 2 ) Heartwood reddish brown or orange brown. Resin ducts abundant. 



Heartwood with "piney" odor. 



(as) The summerwood inconspicuous and not much darker or harder than 

 the springwood. Wood light to moderately light. 



The SOFT PINES: 

 (a 4 ) Eastern species. 



EASTERN WHITE PINE 



(bt) Western species. 



WESTERN WHITE PINE 

 SUGAR PINE 



(bs) The summerwood conspicuously darker and harder than the springwood. 



The HARD PINES: 

 (aO Wood moderately light. 

 (a 5 ) Western species. 



(as) Heartwood not much darker than sapwood. Tangential surface 

 slightly dimpled, as if hit lightly with coarse shot. Sapwood 

 usually less than 2 inches wide. 



LODGEPOLE PINE 



(be) Heartwood distinctly darker than sapwood after exposure to air 

 and light. Tangential surface not dimpled, or only in narrow- 

 ringed wood. Sapwood usually more than 2 inches wide. 



PONDEROSA PINE 



(b 5 ) Northeastern species. 



JACK PINE 

 RED PINE 



(b 4 ) Wood moderately heavy to very heavy. Eastern and southern species. 



VIRGINIA PINE 

 PITCH PINE 

 SHORTLEAF PINE 

 LOBLOLLY PINE 

 POND PINE 

 LONGLEAF PINE 

 SLASH PINE 



(bz) Heartwood light orange red to cherry red. Resin ducts scarce. Tangential 

 surface not dimpled. Heartwood with characteristic, but not "piney," 

 odor. 



DOUGLAS-FIR 



(c2) Heartwood pinkish to pale reddish brown. Resin ducts scarce. Tangential 

 surface slightly dimpled, as if lightly hit with coarse shot, except in wide- 

 ringed wood. Wood without distinct odor. 



SITKA SPRUCE 



(bi) Heartwood not appreciably darker than the sapwood. Resin ducts present 

 but scarce and inconspicuous. Wood without distinct odor. 



WHITE SPRUCE 

 RED SPRUCE 

 ENGELMANN SPRUCE 

 (b) Wood not resinous. 



(ai) Heartwood decidedly darker than the sapwood. 

 (an) Heartwood medium to dark reddish brown. 



(a 3 ) Heartwood without odor or taste. Wood moderately light. 



REDWOOD 



(b 3 ) Heartwood with spicy odor and taste (like cedar shingles) . Wood light. 



WESTERN REDCEDAR 

 (c 3 ) Heartwood with aromatic odor and taste. Wood moderately heavy. 



EASTERN REDCEDAR 

 (b 2 ) Heartwood light brown, with spicy odor and taste. Wood light. 



NORTHERN WHITE-CEDAR 



(c 2 ) Heartwood light pinkish brown, with aromatic odor. Wood light. 



ATLANTIC WHITE-CEDAR 



(da) Heartwood variable from pale brown to dark brown, with rancid odor 

 but without taste. Wood variable from moderately light to moderately 

 heavy. 



BALDCYPRESS 



