■ 24 ■ 



tree for several years, requiring some degree of force to detach them from it, whereas the cones of 

 P. Tceda appear to fall off the tree soon after they are ripe. Iho flowers appear in Pensylvania, under 

 the 40th degree of north latitude, towards the end of August. The co7ies, which require almost two 

 years to arrive at maturity, are pyramidal, and from two to four inches long. The scales shoot into a 

 woody, inflected point, and contain two kernels which are less than those of P. sylvestris. and ripen at the 

 end of November, but the cones open and drop their seed only in warm weather. I could never find 

 any male flowers on either of the two trees at Sion House, though they are so flourishing. Perhaps 

 this circumstance is to be attributed to the dryness of the situation, and the lightness of the soil. 



In regard to climate, our winters would seem to suit this species extremely well, and if it could be 

 made to thrive on some of our heaths, the cultivation would be advantageous, if it were only for the 

 tar, pitch, and turpentine. But to plant it in good soil would be unprofitable, because other pines 

 planted under such circumstances, are far preferable on account of their greater durability. 



^ 4 



EXPLANATION OF TAB. 16 & 17. 



f 



Tab, 10 is taken from a specimen brought from America by Mr. John Fraser. 



■■ A. 



Male Catkin magnified, r 



B, B. Antherse. 

 Bipe Cone. 



c. 



d, d. Scales of the same. 



e. Seeds. 



Tab. 17, from a tree in the garden of the Duke of Northumberland at Sion H 



ouse. 



a. 

 b, 

 c. 



Unripe Cones. 



Bipe Cones in their proper position. 

 Scale. 



d. Seed. 



See Cone of P. Tteda ahpecuroidea, Hort. Kezu. at Tah.ig.fg. 5 



■ ■ } 



' T 



