Tas. 8467. 
PINUS FLEXILIS. 
Seer 
Western North America. 
ConirERAr. Tribe ABIETINEAE. 
Pines, Linn.; Benth. et Hook. f. Gen. Plant. vol. iii. p. 438. 
Pinus flexilis, James in Long’s Expedition, vol. ii. p. 84; Sargent in Silva 
North Amer. vol. xi. p. 35, tt. 546, 547; Henry in Elwes & Henry, The Trees 
of Great Britain and Ireland, p. 1046; species P. albicauli, Engelm., 
proxime affinis sed innovationum ramulis cinereis nec rubescentibus 
strobis apertis et seminibus argute marginatis differt. 
Arbor, saepius 12-15-metralis, nonrunquam 25-metralis; in aridis montium 
cacuminibus interdum fruticosus, 3-6 dm. altus; ramuli juniores 
laevissimi, glabri vel minutissime pubescentes. Folia glomerulis 5-foliatis 
agegregata, diu persistentia, vetustiora quinquennalia vel septuennalia, 
juniora saepe ad ramulos plus minusve appressa, triangularia, curvata, 
apice acicularia, margine integerrima, 5-9 cm. longa, 1°25 mm. lata, 
ciner:scentes, utrinque lineis stomatum 3-4 notata. Strobi ovoidei, 
7°5-10 cm. longi, 4-5 cm. lati, singuli vel bini vel terni, sessiles; squawae 
late ovatae, 1-2-2-5 cm. longae, 1-2 cm. latae, intus cinereae, margine libera 
pallide brunneae, deflexae, crasse mucronatae. Semina ovoidea, complanata, 
—  pcgspamng vel utrinsecus acutata, 1 cm. longa, ala subobsoleta. 
—wW. J. Bean. 
The Pine here figured, Pinus flexilis, is extremely rare in 
British pineta, and the only good specimens we know of are 
two trees in Lord Rayleigh’s grounds at Terling Place, 
Essex, and a group of four trees in the Kew pinetum from 
the largest of which the material for the preparation of our 
plate was obtained. So far as is generally known, this is 
the finest example in the British Isles; it measures at the 
present time 33 feet in height and 3 feet in girth of trunk. 
The group of trees at Kew is situated just within the 
Isleworth Ferry Entrance, and was planted there by Sir 
Joseph Hooker at the time of the formation of the pinetum, 
1871-1872; the plants had been obtained from the firm of 
Dickson & Turnbuli, Edinburgh. The species was dis- 
covered in Colorado near the base of Pike’s Peak in 1820, 
and was introduced to cultivation in 1861, by Dr. Parry. 
There are three characters which, in conjunction, distin- 
guish P. flexilis from all other pines in cultivation whose 
leaves are five in a bundle: the entire margins of the 
DecemsBrr, 1912. 
