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 the great rapids of the Columbia river. M. Lewis. 
. April, v. s. A very tall tree ; leaves larger than 
any other known species j flowers greenish-yellow, in 
long compound racemes. 
Arbor grandis. Ramuli juniores purpurascentes, glabri. 
Folia magna longe petiolata, juniora pubescentia. 
Bractece gemmarum longissimae, lineares, apice in- 
cisae, sericeo- villosae. Racemi terminales, erecti, 
elongati. Pedicel/i inferne aggregati, superne soli- 
tarii, glabri. Calyx 9-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 inaequaliter 
acute-dentatis uti inque glabris, nervis venisque ad ax- 
illas pilosis. 
Ori the great rapids of Columbia river. M. Lewis. 
. v. s. s.Jl. This beautiful species has leaves of 
the size of A. rubrum. 
8. A. foliis inferne rotundatis, superne acuminato-tricuspi- 
datis argute-serratis glabris, racemis simplicibus pen- 
dulis. — Mich.fi. amer. 2. p 252. 
A. pensylvanicum. Willd . sp. pl. 4. p. Q8Q. 
A. canadense, Marsh, arh 
Icon. Mich.arb.iy. Schmidt arh. 10. Wangh. amer, 
t. 12 fi 28. 
In mountain woods : Canada to Virginia. 1? . May. 
v. v. A small tree with an elegant striped bark ; 
known by the name of Striped-maple or Moose wood 
9. A. foliis subquinquelobis acutis dentatis subtus pubes- 
centibus, racemis compositis erectis. — Willd. sp. pl. 4. 
p. 9S8. 
A. pensylvanicum. Wangh. amer. 82. t. 12. f. 30. 
A. parviflorum. Ehrh. beitr. 4. p. 25. 
A spicatum. Lam. encycl. 2. p. 377* 
Icon. Schmidt arb. 1L. Du Roi harbk. 1 . t. 2. 
267 
macrophyh 
lum. 
circinatum. 
striatum . 
montanum. 
