1 . Acer pennfylvanicmn Pennfylvanian 
Dwarf Mountain Maple. 
This grows naturally upon the mountains in the 
back parts of Pennfylvania. The (terns are (lender, 
rifing to the height of fix or eight feet, and fending 
off feveral oppofite branches* The leaves are three- 
pointed, pretty much fawed on their edges, and 
placed oppofite upon pretty long footftalks. The 
flowers terminate the (talks in a pretty long ered 
racemus or bunch; they are fmall, of an herbaceous 
colour, and in part fucceeded by fmall conjoined 
winged feeds. 
2. Acer glaucum. The Silver-leaved Maple . 
This tree grows frequently to the height of fifty 
or fixty feet, with many fpreading branches. The 
leaves are five-lobed, fo me what toothed, or deeply 
and irregularly fawed on their edges : they are of 
a lucid green on the upper fide and a bright filver co- 
lour on their under. The flowers are produced in 
little umbels at the foot of the leaves; they are of a 
deep red colour, and are fucceeded by large winged 
feeds, which fall off early in the fummer. This is 
perhaps the Acer rubrum of Linnaeus. 
3. Acer Negundo. The AJh~leaved Maple . 
This tree is dioecious, or having male and female 
flowers upon different trees; it is but of middling 
growth, rifing perhaps to the height of twenty or 
thirty feet. The leaves fomething referable thofe of 
the Afh, but are generally trifoliate or quinquefoliate, 
or confiding of three or five lobes ; which are oval, 
fomewhat pointed, and a little notched towards their 
extremities. The flowers of the male are produced 
upon 
