MONOECIA MONADELPHIA. 
639 
9. Balsamea. 
Leaves solitary, flat, 
emarginate or entire, 
glaucous underneath, 
somewhat pectinate, at 
the summit nearly e- 
rect, below recurved, 
expanding; cones cy- 
lindrical, erect; brac- 
teas short, obovate, 
mucronate, slightly ser- 
rulate. 
Sp. pi. 4. p. 504. Pursh, 2. p. 639. Nutt. 2. p. 223. 
Abies Balsamifera, Mich. 2. p. 207. 
A small tree, rarely exceeding 30 to 40 feet in height, from 12 to 15 inch- 
es in diameter; the leaves 6 to 10 lines long, solitary, bright green on the up- 
per surface, glaucous underneath. Cone solitary, erect, somewhat cylin- 
drical. The scales closely and handsomely imbricate, with the margins 
thin and smooth. < 
This species, like all the rest of the firs, is only to be found in the South- 
ern States on the highest summits of the Alleghany Mountains. The P. 
Fraseri of Pursh seems only to be a variety of this species. It is commonly 
called the Silver Fir, Balm of Gilead, or Balsam Fir. 
Flowers April— May. 
P. foliis solitariis, 
planis, emarginatis in- 
tegrisve, subtus glaucis, 
subpectinatis, supra 
suberectis, recurvato- 
patentibus; conis cylin- 
draeeis erectis, bracte- 
olis abbreviatis obova- 
tis, longe mucronatis, 
subserrulatis. 
10. Canadensis. Lin. 
P. foliis solitariis, 
planis, denticulatis, sub 
distichis; strobilis ova- 
tis, terminalibus, vix 
folio longioribus. 
Leaves solitary, flat, 
denticulate, some-what 
distichous; cones ovate 
terminal, scarcely long- 
er than the leaf. 
Sp. pi. 4. p. 505. Pursh, 2. p. 640. Nutt. p. 223. 
Abies Canadensis, Mich. 2. p. 206. 
Icon Abies Canadensis, Mich. arb. for. 1. p. 137. 
This tree, in favourable situations, attains a large size, and is found 70 — 
80 feet high and 2 — 3 in diameter; its branches are generally horizontal, and 
the leaves irregularly distichous, and somewhat crowded near the extremi- 
ties of the branches which are also distichous. Leaves 6—8 lines long, flat. 
