PINACEAE 297 



PINUS — continued 



P. Laricio {P. nigra). Corsican Pine. 150. E. Buds cylindrical, thickly coated 



with resin ; branchlets light brown, covered with long narrow plates. Ls. 6, 



dark green, curved and twisted in young plants, minutely toothed. Cone 



3x1, egg-shaped, glossy. Central Europe to West Asia. (Fig. 45 s.) 



Variety nigricans (aiistriaca). Austrian Pine. Crowns broader and 



foliage greener and denser (cannot be seen through). Cone scale with 



radiating cracks (Henry). 



P. leiicodermis. Bosnian Pine. 90. E. Branchlets greyish white ; buds without 

 resin. Ls. 4, bright green, erect and rigid. Cone 3x1, egg-shaped, yellow 

 or light brown. Yugo-Slavia. 



P. montana (P. Mugo). Mountain Pine. 80. E. Usually a low shrub. Densely 

 branched. Ls. 3, dull pale green, crowded. Cone 2, glossy, very hard, 

 with pyramidal scales. Alps. (Fig. 45 Q.) 

 Y ariety pumilio (Mughus). Dwarf. Cone i|. 

 Variety uncinata. 80. Cone scales hooked. 



P. muricata. Bishop Pine. 90. E. Branchlets orange-brown ; buds cylindrical, 

 coated with resin. Ls. 6, stiff, blunt, concave, rough-edged. Cone 3, 

 unequal-sided, scales hooked. California. (Fig. 46 a.) 



P. Pinaster {P. maritima). Maritime Pine, Cluster Pine. 120. E. Bark deeply 

 furrowed. Branchlets yellowish brown; buds without resin; scales free 

 at tip, recurved and edged with silvery threads. Ls. 8. Cone 5x2, 

 pointed, yellowish brown, in clusters remaining on tree for several years. 

 Mediterranean region. (Fig. 46 b.) 



P. Pinea. Stone Pine. 100. E. Old trees have broad umbrella-shaped crown. 

 Buds i, scales curly, pointed, edged with silvery threads. Ls. 5. Cone 

 4X3, roundish egg-shaped, not pointed, glossy, pale brown. Medi- 

 terranean region. (Fig. 45 R.) 



P. resinosa. Red Pine. 70. E. Branches drooping; buds conical, resinous. 

 Ls. 6, dark glossy green, rough-edged, densely crowded, bundle-sheath 

 f . Cone egg-shaped, 2x1, pale shining brown. East North America. 



P. sylvestris. Scots Pine. 100. E. Crown flattens out in old trees. Bark 

 reddish, scaly, peeling off in upper part of tree. Bud with little resin, 

 scales free at tip. Ls. 3, stiff, bluish green. Cone 2^, conical. Europe 

 (including Britain) and North Asia. (Fig. 45 o.) 



P. Thunhergiana. Japanese Black Pine. 100. E. Bark dark grey; branchlets 

 yellow; buds white, not resinous. Ls. 3, stout, sharp-pointed, bright 

 green. Cone 2X1, each scale with small prickle. Japan. 



{h) Three Is. in each bundle 



P. Bungeana. Lace-bark Pine. 80. Bark smooth, ashy grey, peeling like plane. 



Ls. 3, rigid, bright pale green, rough-edged. Cone 2x1, scales hooked, 



seeds wingless. China. 

 P. Coulteri. Big-cone Pine. 80. E. Branchlets very thick, with Is. clustered 



at end; buds resinous. Ls. 12, minutely toothed, grey-green. Cone 



12x6, polished; scales thick, with strong hooked spines. California. 



(Fig. 46 E.) 

 P. insignis {P. radiata). Monterey Pine. 120. E. Bark rough. Buds resinous. 



Ls. 6, thin, bright grass-green, clustered at end of branches on older 



