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. Theflowers appear in Pensylvania, under
the 4 0 th degree of north latitude, towards the end of August. The cones, 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.
Tn regard to climate, our winters would seem to suit this species extremely well, aud 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.
EXPLANATION OF TAB. 16 & 17.
T a b . 10 is taken from a specimen brought from America by Mr. John Eraser.
A. Male Catkin magnified.
B , B. An therm.
c. Ripe Cone.
d. d. Scales of the same.
e. Seeds.
T a b . 17, from a tree in the garden of the Duke of Northumberland at Sion House.
a. Unripe Cones.
b. Ripe Cones in their proper position.
c. Scale.
d. Seed.
See Cone of P. Tceda alopecuroidea, Hort. Kew. at Tab. \Q.Jig. 5 .