MONOECIA TETRANDRIA. Betula, 
4. B. foliis ovatis acuminatis eras; venis 
fubtus. hirfutis. 
Paper Birch Tree. 
Nat. of North America. ; : 
Cult. 1750, by Archibald Duke of Argylee, 
Fi. June. pS oa Nae : H. bh. 
5. B. foliis wiser et acuminatis samen nn pl. 
E3Q4e cudtist 
Soft Birch Tree. 
Nat. of North America. aa 
Cult. 1759 by Mr. Ph. Miller. AGI. dia, rte Mh. Be" 
Fi, : H. h. 
6. B. foliis ovatis acutis ferratis, ftrobilorum fquamis 
lobis lateralibus rotundatis, petiolis poems 
pedunculo brevioribus. 
Tall Birch Tree. 
Nat. of North America. 
Introd. about 1767, by Mr. James Gordon. 
Fl. May. net, h. 
7- B. foliis orbiculatis crenatis. Sp, pi. 1394. 
Smooth Dwarf Birch. 
Nat. of Scotland. . 
Fi. aely, vr: P- 
8. B. foliis abiterseil crenatis. ame) mant. Hig - Foc | 
hort. 2. p.56. te 1220": 
Hairy Dwarf Birch. 
Nat. of North America, 
Introd. 1762, by Mr. James Conor sogeliets 
Fis April and May. eee , Hb. 
Vor. IIL. Z : 9. B. 
lenta. od 
excelfa, 
nands 
