

PINE FAMILY. CONIFERS. 



2. Pinus resinosa Ait. Canadian 

 Pine. Red Pine. (Fig. in.) 



Finns resinosa Ait. Hort. Kew. 3: 367. 1789. 



A tall forest tree, reaching a maximum height 

 of about 150 add a trunk diameter of 5, the 

 the bark reddish, rather smooth, flaky when 

 old. Leaves 2 in each sheath, slender, dark 

 green, 4 / -6 / long, with 2 fibre-vascular bundles ; 

 sheaths 6 // -i2 // long when young; staminate 

 aments 6 // -o/ / long ; cones subterminal, spread- 

 ing, oval-conic, i l /z'-2 1 ^ long, usually less than 

 i' thick while the scales are closed ; scales 

 thickened at the apex, obtuse, rounded and 

 devoid of spine or prickle. 



In woods, Newfoundland to Manitoba, south to 

 Massachusetts, Pennsylvania and Minnesota. Wood 

 compact, not strong, light red; weight per cubic 

 foot 30 Ibs. May-June. 



3. Pinus palustris Mill. lyong-leaved Pine. Georgia Pine. < Fig. i . 



Finns f>alnslris Mill. (lard. Diet. Kd v NU. 14 17^8, 

 Pinus aitstralis Michx. f. Hist. Arh. Am. I: 64. ft. 6. 

 1810. 



A large tree, sometimes attaining a height of 100 

 and a trunk diameter of 5, the bark nearly smooth 

 Leaves in 3*3, slender, dark green, clustered at the 

 ends of the branches, much elongated (lo'-^' long). 

 with 2 fibre-vascular bundles ; sheaths i '- 1 V ' long ; 

 buds long ; staminate aments rose-purple, a'-jS' long, 

 very conspicuous ; cones terminal, spreading or erect, 

 conic -cylindric, 6'--io / long, *'-$' thick before the 

 scales open ; scales thickened at the apex, which i 

 provided with a transverse ridge bearing a short cen- 

 tral recurved prickle. 



In sandy, mostly dry soil, oftrtt funning rxtctiMve for- 

 ests, southern Virginia to Florida i:ul TVxaa, motlv near 

 the coast. Wood hard, strong, o itnp.ut light red or 

 orange; weight per cubic foot 44 I' 

 chief source of our turpentine, tar. r.-in. and t! 

 tives. Also known as Southern I'im . Yellow I'm.-. Hard 

 Pine and Virginia Pine. March April 



4. Pinus ponderosa Dougl. Western Yel- 

 low Pine. (Fig. 113.) 



Pinus ponderosa Dougl. Lawson's Man. 354. 1836. 



One of the largest North American trees, attaining 

 a maximum height of nearly 30x5 and a trunk diam- 

 eter of 15, but commonly much smaller. Branches 

 widely spreading or somewhat drooping ; bark light 

 red, scaly ; leaves in 3*3 (rarely some of them in 2's), 

 rather stout, 5 x -ic/ long, slightly scabrous ; cones 

 subterminal, very dense and heavy, ovoid-conic, 

 4'-6' long, i l / 2 '-2 l / 2 ' thick ; scales much thickened at 

 the apex, the transverse ridge prominent, with a 

 triangular subulate short stout recurved prickle. 



Montana to British Columbia, south to western Ne 

 braska, Texas, Mexico and California; the shorter- leaved 

 eastern form which reaches our area has been distin- 

 guished from the western as var. scopulorum. Wood hard, 

 strong, light red; weight per cubic foot 29 Ibs. One of the 

 most important lumber-trees of the west. April-May. 



