WEYMOUTH PINE 



143 



Jt Cones ellipsoid, erect, 50 80 mm. 



Pinus Cembra, L. Arolla Pine (Fig. 59). May reach 60 

 70 feet or more; the crown may be conic and pointed but 

 usually soon becomes irregularly spreading or rounded off, 



Fig. 60. Pinus Strobus, L. 1, open ripe cone ; 2, cone-scale viewed 

 from below ; 3, cone-scale viewed from above ; 4, winged seed seen from 

 above; 5, seed forcibly deprived of its wing and seen from below ; 6, shoot 

 with growing spring- shoots and two cones of the preceding year. (All 

 reduced, after von Tubeuf.) 



