ORUER 127. COfllFEIkE. 313 



3 P. CKMBBA. Stone P. Leaves 2 3' ; cones ovate, erect ; eeeds hard, wingless. Alps. 



4 P. ABISTATA. Colorado P. Leaves 1 1J', crowded ; cones oval, 21'. Tree 40 50f. 



5 P. au.stra.Iis MX. Long-leaved P. Tree 60 lOOf, very resinous ; leaves 10 iy, 



crowded ; cones lance-oblong, nearly as long as the leaves. Stands in extensive 

 forests, South. Very valuable for turpentine, timber, or fuel. 



6 P. Tseda L. Loblolly P. Tree 50 90f; le&ves 610', with long sheaths; cones de- 



flexed, half as long as the leaves, with small but strong spines. 8. 



7 P. serotlna MX. Pond P. Tree 30 60f; leaves 5 8', rigid ; cones broadly ovoid, 



polished, nearly spineless, as large as a goose-egg. Wet lands, S. 



8 P. riglda Mill. Pitch P. Tree 30 70f, with very rough bark; leaves rigid, 4 fi', 



with short sheaths ; cones clustered, ovoid-conic, 2 3'. Sandy barrens. 



9 P. roNDEBdsA. Tree 50 lOOf in California, with sturdy trunk, smoothish bark, 



heavy wood ; leaves 912' ; cones 31', conical, with short strong spines. 



1 P. mills MX. Yellow P. Spruce P. Tree of slow growth, 30 60f ; Ivs. covering 

 the branchlets, some of them in 3's, mostly in pairs, 3 5', slender ; cones 11 2', 

 ovoid-conic, clustered. In dry lands. Timber very valuable. 



IIP. ptingens MX. Tree with crooked branches, 20 30f ; leaves stout, crowded, 

 about 2' ; cones ovoid, 3', with stout spines 8" long. Mountains, Penn., and S. 



12 P. Iiiops Ait. Jersey P. Scrub P. Tree 15 25f, rough and crooked ; Ivs. rigid, 

 obtuse, 2 3' ; cones ovoid-oblong, 2 3', with straightish prickles. Barrens. 



1 3 P. reslnosa Ait. Norway P. lied P. Tree 60f, bark smoothish ; Ivs. slender, 56', 

 c heaths ti-12" ; cones conic with a rounded base, half as long as the leaves. Dry woods, 

 Penn. to Wis., and N. Timber compact, moderately resinous. 



14 P. Hudsonlca Poir. (P. Banksiana Lamb.) A straggling pine 5 25f; Ivs. rigid, 

 curved, 1', the cones longer (11 20, recurved, smooth. Rocks, Me., W. and N. 



1 5 P. LARICO. Corsican Pine. A large tree of rapid growth, very handsome in parks ; 

 leaves slender, bright green, wavy, 4 6' ; cones 2 3'. Branches whorled. 



/3. AUSTBIACA. Austrian P. Leaves more rigid, of a rich dark-green color. 



16 P. SYLVESTBIS. Scotch P. Tree of rapid growth, perfectly hardy ; Ivs. 2 4', twisted, 

 rigid, bluish green ; cones ovoid-conic, 2 3'. Common in Europe. 



2. ABIES, Tourn. SPRUCE. FIR. HEMLOCK. $ Amenta clustered 

 with the old Ivs. $ Am. solitary, cones with thin, flat, spineless scales, per 

 sistent one year. Seeds winged. Cotyledons 3 9. J> Lvs. solitary, not 

 sheathed, scattered over the branches, linear, short, mostly petioled. 

 fir. Cones erect, the scales deciduous. Lvs. flat, spreading two ways., .(a;) 

 Spruce. Cones nodding. Lvs. 4-sided or ensiform, pointing all around., .(a) 



Hemlock. Cones hanging. Leaves flat, mostly spreading two ways Nos. 13 



a Cones oval, 1 2' long, the scales nearly entire. Native, t Nos. 4, 5 



a Cones oblong, 38' long, the scales erose-dentate. Cultivated Nos. 6, 7 



x Bracts conspicuously exserted, much longer than the scales Nos. 810 



x Bracts shorter than the scales or rarely a little exserted Nos. 1113 



1 A. Canadensls MX. Common H. Tree 50 SOf, very beautiful when young; Ivs. 



short-linear (6 8"), glaucous beneath ; cones ovoid, terminal, as long as the leaves, 

 scales concealing the bracts. Rocky woods : common N. 



2 A. WILLIAMSONII (or Pattoniana). Large tree in Oregon, very fine and hardy here, but 



Mire ; leaves yellowish, 6 8". the cones three limes longer, bracts concealed. 



3 A. DOUOLASSII. A huge tree in Oregon, handsome ; cones with long, 3-forked bracts. 



4 A . nlgra MX. Double S. Tree pyramidal, 60 SOf ; leaves 67", dark green ; cones 



ovoid, 12, scales eroae-denticulate. Damp mountain woods, northward. 



5 A. alba MX. Single S. Tree 30 SOf, subpyramidal ; leaves (v 9", glaucous ; cone* 



deciduous, cylindrical, 2', with the scales entire. Rocky woods : common. 



6 A. PICBA (or excelsa). Norway S. A stately tree with dense dark-green foliage ; lvg 



9 12" ; cones 58' long, liyht brown, scales notched. Very common. 



