982 ARBORETUM ET FRUTICETUM BRITANNICUM. 
The plants, when of ten or twelve 
years’ growth, are remarkable for the 
twisted appearance of their branches 
which are in regular verticillate whorls. 
The timber of full-grown trees is said 
to be so heavy as almost to sink in 
water. The species is found to be 
quite hardy, and of rapid growth, both 
in the climate of London and of Edin- Ea 
burgh. P. ponderdsa is a native of y ‘a 
ie aecthweet coast of North Ame- = 
rica, on the banks of the Spokan and 
Flathead rivers, and on the Kettle 
Falls of the Columbia, abundantly. 
It was discovered by Douglas, and 
‘ sent by him to the Horticultural So- 
ciety in 1826. A number of plants 
were raised from seeds in that year, 
and distributed: the largest of those —__> 
we believe to be that in the Hor- 
ticultural Society's Garden. The 4 
tree at Dropmore was, in 1837, 9 ft. o 
high. 1833. P. pondcrosa. 
GLI 
LAL 
CIS 
LY 
¢ 23. P. Sasinra'na4 Douglas. Sabine’s, or the great prickly-coned, Pine. 
Identification. Lamb. Pin., ed. 2., 2. t. 80. ; Lawson’s Manual, p. 353.3 Pin Wob.., p. 63. 
Engravings. Lamb. Pin., ed. 2, 2. t.80.; Pin, Wob., t. 23. and 24.; our jig. 1837. to our usual 
scale ; and. ig. 1834, to 1838. of the natural size, from the tree in the Horticultural Society’s 
Garden, and Lambert. 
Spec. Char., §c. Leaves in 
threes, very long. Cones 
ovate, echinate, very large. 
Scales long, awl-shaped, 
incurved, and spiny at the 
apex. (Lamb. Pin.) Buds, 
) on the tree in 
the Horticul- 
tural Society’s 
(Garden (see 
i] fig. 1834.), 
long, and 2 in. 
broad; convex 
, on the sides, 
imbricated, but 
not covered 
with resin. 
Leaves from 
10 in. to 1 ft. in length ; 
glaucous in every stage of 
their growth, flexuose ; and, 
when full-grown, _ partly 
bent downwards, as those 
shown in fig. 1837, Sheaths 
above lin. in length, mem- 
branaceous, ash-brown, 
shining, and nearly entire 
at the top, with numerous 
rings. Scales ofthe cones, 
in the specimens sent home 
1834. 
1835. b, P. Sabiniana ; a,c, P. Cotter. 
