

SUoMttdH 



Figure 6. A. Thirty-eight-> ear-old Pinus armandii at Westtown 

 Pennsylvania. B. Pinus eembva at Mt . Auburn, Massachusetts 

 (photo courtesy of Arnold Arboretum) . C. Forty-seven-year-old 

 Pinus parvi flora (probably var. pentaphylla) at Westtown, 

 Pennsylvania. D. Fifty-three-year-old P. parvi flora (probably 

 var. himekomatsu) at Wcoster, Ohio. 



