328 ON PINUS ARISTATA, ETC. 
Another 5-leaved species of the Rocky Mountains, first noticed more than 40 years ago, but 
hitherto very imperfectly known, is 
Pinus FLExiiis, James, in Long’s Exped. 2, pp. 27, 34. Torrey, in Ann. Lye. N. Y. 2, p. 249: arbor mediocris 
seu elatior ; foliis dense confertis quinis sub-biuncialibus rigidis integris acutiusculis ex axillis perularum lanceolatarum 
Hy 
vA Wily, 
iii 
AN] 
iit 
3 RUN ) 
Pirate V. — Prnvs ARIsTATA (p. 327). 
of his is preserved in the herbarium of Mr. Durand or of the Academy of Natural Science, in P 
that he had our species in view.—P. flexilis, the American representative of P. Cembra of the Old 
deciduarum, squamis vaginan- 
tibus obtusis laxis mox evani- 
dis; amentis masculis ovatis 
involucro sub-8-phyllo muni- 
tis in axillis bracter lanceo- 
late patulee decidue sessilibus, 
antherarum crista minoreirreg- 
ulariter inciso-dentata ; amen- 
tis femineis subverticillatis in 
pedunculo brevi perulis late 
lanceolatis acutis dense stipato 
erectis squarrosis;  strobilis 
ovato-cylindraceis squarrosis 
horizontalibus seu declinatis 
e rubello fuscis, squamis e basi 
breviter cuneata latissimis or- 
biculato-rhombeis, apophysi 
convexa semicirculari incras- 
sata margine area parva sub- 
rhombea inermi notata ; semi- 
nibus magnis obovatis exalatis 
natis. 
On the Rocky Mountains, 
from New Mexico to the 49th 
parallel, “ occupying the sub- 
alpine belt, never forming 
entire forests, in the lower ele- 
vation associated with P. con- 
torta, approaching the alpine 
districts, scattering with P. 
aristata” (Parry’s Notes) ; on 
the Sandia Mountains, New 
Mexico, 12,000 feet high, to 
(No. 832) ; Colorado, James, 
Parry, Hall & Harbour (No. 
529); Laramie Mountains, 
H. Engelmann ; mountains 
from the Platte to the Bear 
River, Nuttall; Wind River 
tains, Fremont; Big 
Snake River, Dr. Hayden, to 
the British boundary, Dr. Ly- 
all, Nuttall’s figure in his 
Sylva, pl. 112, is very poor, 
and even quite incorrect ; nor 
can I learn that any specimen 
hiladelphia, but suppose 
World, is a middle-sized 
