PICEA. 124 
»0ff in thin rolling flakes. It yields but little balsam: two-thirds 
,of the diameter of the trunk in the centre , presents a reddish 
.white; the remainder is white, porous and tough: the twigs 
are much longer and more slender than in either of the other 
»species; the leaves are acerose, one twentieth of an inch in 
Width , and one inch in length; sessile, inserted on all sides of 
5e bough, straight, and obliquely pointing towards the extre- 
,mities. '"The upper disk has a small longitudinal channal, and 
.is of a deep green, and not-so glossy as the balsam Fir. "The 
under disk is of a pale green. — We have seen a species of this 
.Fir on low marshy grounds, resembling in all points the fore- 
Jzoing, except that it branehes more diffusively. "This tree is 
,zcenerally thirty feet in height, and two in diameter. "The dif- 
fusion of its branches may result from its open situation, as it 
seldom grows in the neighbourhood of another tree. "The cone 
is two and half inches in length, and three and three quarters 
.in its greatest circumference. [t tapers regularly to a point, 
,and is formed of the imbricated scales of a bluntly rounded form. 
,A thin leaf is inserted in the pith of the cone, which overlays 
.the centre of, and extends half an inch beyond the point of - 
,scale.^ Lewis and Clarke. 
6. .ABIES FALCATA Raf. (Seventh Fir Lewis and Clarke), bark 
.scaly, leaves tristichal or in 3 rows, in 2 rows upright, in 
,lower row declinate faleate, all linear lanceolate, with trigone 
.petiols. Cones fusiforms obtuse at both ends. Only on the sea 
,shore of Oregon, rising only 35 feet, leaves 3 — Ath inch long, 
.,1—5th wide. Raf. 
.The seventh species grows in low grounds, and in places fre- 
,quently overflown by the tide, seldom rising higher than thirty- 
»five feet, and not more than from two and a half to four in 
,diameter: the stem is simple, branching and proliferous, the 
»bark resembles that of the first species, but more rugged: the 
leaves are acerose, tw o-tenths of an ineh in width, three-fourths 
in lenght, firm, stiff, and a little acuminated: they end in 
short pointed tendrils, gibbous, and thickly scattered on all 
sides of the branch, though they adhere to the three under 
sides only: those inserted on the under side incline sidewise, 
with upward points; presenting the leaf in the shape of a sithe: 
