PINACEAE. 



VOL. I. 



5. Pinus Banksiana Lamb. Labrador Pine. 

 Gray Pine. Fig. 135. 



Pinus sylvestris var. divaricata Ait. Hort. Kew. 3 : 366. 



1789. 



Pinus Banksiana I.amb. Pinus, i: 7. pi. 5. 1803. 

 Pinus divaricata Gordon, Pinetum, 163. 1858. 



A slender tree, usually 40-60 high, but sometimes 

 reaching 100, and a trunk diameter of 3, the branches 

 spreading, the bark becoming flaky. Leaves in 2's, 

 stout, stiff, more or less curved, spreading or oblique, 

 light green, crowded along the branches, seldom over 

 i' long; fibre-vascular bundles 2; cones commonly very 

 numerous, lateral, oblong-conic, usually upwardly 

 curved, i'-2 r long, 9"-i5" thick when mature; scales 

 thickened at the end, the transverse ridge a mere line 

 with a minute central point in place of spine or prickle 

 at maturity; young scales spiny-tipped. 



In sandy soil, sometimes forming extensive forests, Nova Scotia to Hudson Bay and the 

 Northwest Territory, south to Maine, northern New York, northern Illinois and Minnesota. Wood 

 soft, weak, compact, light brown ; weight per cubic foot 27 Ibs. Also called Hudson Bay Pine, 

 Northern scrub-pine ; Black, Bank's-, Shore-, Jack- and Rock-pine ; Unlucky-tree. May-June. 



6. Pinus virginiana Mill. Jersey Pine. Scrub 

 Pine. Fig. 136. 



Pinus virginiana Mill. Card. Diet. Ed. 8, No. 9. 1768. 

 Pinus inops Ait. Hort. Kew. 3: 367. 1789. 



A slender tree, usually small, but sometimes at- 

 taining a height of 110 and a trunk diameter of 3, 

 the old bark dark colored, flaky, the branches spread- 

 ing or drooping, the twigs glaucous. Leaves in 2*s, 

 dark green, rather stout and stiff, \\'-2.\' long, with 

 2 fibre-vascular bundles; young sheaths rarely more 

 than 2\" long; cones commonly few, lateral, recurved 

 when young, spreading when old, oblong-conic, \\'- 

 2!' long, their scales somewhat thickened at the apex, 

 the low transverse ridge with a short more or less 

 recurved prickle. 



In sandy soil, Long Island, New York to Georgia, 

 Alabama and southern Indiana and Tennessee, sometimes 

 forming forests. Ascends to 3300 ft. in Virginia. 

 Wood soft, weak, brittle, light orange ; weight per cubic 

 foot 33 Ibs. April-May. Called also Short-shucks, 

 Short-leaved or Short-shot Pine ; Spruce, Cedar, Nigger 

 and River-pine. 



7. Pinus echinata Mill. Yellow Pine. Spruce 

 Pine. Fig. 137. 



Pinus echinata Mill. Gard. Diet. Ed. 8, No. 12. 1768. 

 Pinus mitis Michx. Fl. Bor. Am. 2 : 204. 1803. 



A forest tree, reaching a maximum height of about 

 120 and a trunk diameter of 4i, the branches spreading, 

 the old bark rough in plates. Leaves some in 2 ? s, some in 

 3's, slender, not stiff, dark green, 3'-$' long, spreading when 

 mature ; fibro-vascular bundles 2 ; young sheaths 5"-8" 

 long; cones lateral, oblong-conic, about 2' long, usually 

 less than i' thick when the scales are closed; scales thick- 

 ened at the apex, marked with a prominent transverse ridge 

 and armed with a slender small nearly straight early de- 

 ciduous prickle. 



In sandy soil, southern New York to Florida, west to 

 Illinois, Kansas and Texas. Wood heavy, strong, orange ; 

 one of the most valuable timbers ; weight per cubic foot 38 

 Ibs. Also called Short-leaved or Short-shot Pine, and Bull, 

 Carolina, Pitch, and Slash-pine. May-June. 



