OCTANDRIA MONOGYNIA, Acer. 
to the foregoing species, and occupies the same situa- 
tions where the other is not found; called Black- 
maple. 
6. A. foliis digitato-5-lobis, sinubus rotundatis, lobis sub- 
trilobatis repando-dentatis subtus pubescentibus, race 
mis erectis, filamentis 9. hirsutis, germinibus hirsu- 
tissimis, 
On "€ great rapids of the Columbia river. M. Lewis. 
k. April. v.s. A very tall tree; leaves larger than 
any other known species ; flowers greenish-yellow, in 
. long compound racemes. 
Arbor grandis. Ramuli juniores purpurascentes, glabri. 
Folia magna longe petiolata, juniora pubescentia. 
Bractee gemmarum longissime, lineares, apice in- 
cise,  sericeo-villosae. Racemi „terminales, erecti, 
' elongati. Pedicelli inferne aggregati, superne soli- 
tarii, glabri. Calyx g-fidus: laciniis obovatis, inte- 
rioribus vix latioribus. Filamenta 9. subulata, supra 
medium barbata, calyce vix longiora. Germen hirsu- 
tissimum. Stylus glaber. Flores masculi decandri : 
filamentis calyce duplo longioribus. 
7. A. foliis orbiculatis basi subcordatis 7-lobis inæqualiter 
acute-dentatis ate glabris, nervis venisque ad ax- 
illas pilosis. 
. On the great. rapids of Columbia river. M. Lewis. 
b. v.s.s. ft. This beautiful prin has leaves of 
-~ the size of 4. rubrum. 
o8 io foliis inferne rotundatis, superne acuminato-tricuspi - 
datis argute-serratis glabris, racemis simplicibus pen- 
a Tulio Mick Jl. amer. 2. p. 252. 
A. pensylvanicum. Willd. sp. pl. 4. p. 989. 
A. canadense. Marsh. arb. .... 
Icon, Mich. arb. 17. Schmidt arb. 10. Wangh, amer. 
t. 12. f. 28. 
In. mountaia woods: Canada to Virginia, - H b. May, 
v.v. A small tree with an elegant. bark ; 
- known by the name of Striped-maple or Moose wood 
9. A. foliis subquinquelobis acutis dentatis subtus pubes- 
reciban nar compositis erectis,— Willd. sp. pl. 4. 
p. 958. 
> pensylvanicum. Wangh. amer. 82. t. 12. f. 80. 
x A. parviflorum. Ehrh. aA Pu red 
spicatum, Lam. cl. 2. p. 37 
Icon, Schmidt arb. T" Du Roi harbk. 1,12. 
circinatum. 
montanum. 
