622 
DICLINIA AMENTACE^. Betula. 
pumila» 
B. nigra. Du Roi harbk. 1. p, 93. Wangh. amer, t. 15. 
f. 34. 
Icon. Mich. arh. 2. p. 145. t. 4. 
in Canada and throughout the Allegany mountains, to 
their termination in Georgia, T7 . May, June. v. v. 
This elegant and large tree is the most interesting of 
this genus, on account of the excellence of its wood. 
It is known by the name ot Mountain Mahogany, 
Black Birch, Cherry Birch, and Sweet Birch. This 
last appellation it has from the sweet scent the branch- 
lets give when bruised, 
6. B. ramis pubescentibus impunctalis, foliis orbiculato- 
obovatis petiolatis subtus dense pubescentibus, amentis 
femineis cylindricis. — IVilld. sp. pi. 4. p. 467 • 
B. riana. Kalmitin. 2. p. 263, 
Icon. Jacq. hort. vind, t. 122. Du Roiharlk. 1. /. 3. 
Wangh. amer. #. 29. /. 6 1 . 
In bogs of Canada, and on high mountains of New York 
and Pensylvania. Vi . May, June. v. v. A low 
shrub, not above two or three feet high. 
glandulosa. 
7. B. ramis glandnloso-punctatis glabris, foliis obovatis 
serratis basi integerrimis glabris subsessilibus, araentis 
femineis oblongis, sc^uamis semitrifidis, serninibus or- 
biculatis angusto-inarginatis. sp. pi. 4, p.466. 
In Canada, about Hudson’s Bay, and on the borders of 
lakes on the high mountains of New Jersey and Pen- 
sylvania. Vi . May. v.v. A handsome little shrub^ 
not above tw'o feet high. / 
nana. 
8. B. humiiliraa, glaberrima j foliis orbiculatis crenatU 
subtus reticulato-venosis, amend squamis protunde 
3-partitis, laciniis oblongis, serninibus orbiculatis sub-. 
W illd. sp. pi. 4. p. 465. 
Icon. Amcen. acad. 1. /, 1. Fl.dan.gi. Pall.Jl. ross. 1. 
i. 40. Amman, act. g. t. 14. 
In sphagnous swamps about Hudson’s Bay and other 
parts of Canada. . April, May, v, s. in Herb. 
Lamlert. 
glutinosa. 
695. ALNUS. Willd. sp. pi. 4. p. 334. 
Betula. Gen.pl. 14 19. 
3. A. foliis siibrotundo-cuneatis obtusis subretusis glutinosis, 
axillis venarurn subtus villosis. Willd. sp. pi. 4, 
p. 334. 
