( *9 ) 
2. Be tula lenta. Red Birch. 
This grows to a pretty large fize, fpreading into 
many flender pliable branches. The leaves are 
fmooth, heart-fhaped, oblong, fharp-pointed, and 
finely and flightly fawed on their edges. 
3. Betula papyrifera. White Paper Birch . 
This is a variety of the lad, growing to a mid- 
dling fize and pretty much refernbling it, except in 
having a very white fmooth bark. 
4. Betula populifolia. Afpen- leaved Birch. 
This is alfo a variety of the fecond, and grows 
naturally in the Jerfeys, and other eadern dates, be- 
coming a pretty tall tree, and covered with a white 
bark. The leaves are fomewhat triangular, like 
thofe of the Afpen tree, but terminating in a long 
acute point; they are doubly ferrated, danding up- 
on long flender footdalks, and are put in motion by 
the flighted breeze of wind. 
5. Betula humilis. Dwarf Birch. 
This is alfo a variety of the fecond kind, of a low 
and dwarfifh growth. 
BETUL A-ALNUS, 
The A L D E R TREE. 
T HE Characters are the fame of the Betula, except th© 
Seed-veJJel being a roundiih cone. 
The Species are, 
x. Betula 
