336 - 
alba. 
vulgaris. 
pendula, 
I. 
a 
& 
3: 
MONOECIA TETRANDRIAL 
ee TUL A. Cw pl. 1052. 
Masc. Cal, t-phyllus, 3-fidus, 3-florus: Cars 
4-partita. 
Fem. Cal. 1-phyllus, fub 3-fidus, 2-florus. Sem: 
2 membrana alata, 
B. foliis deltoidibus acufis ipticata-ferratis glabris, 
ftrobilorum fquamis lobis lateralibus rotundatisy 
petiolis glabris pedunculo longioribus« 
Betula alba. Sp. pi. 1393. ag 
ramis ad{cendentibus. . fa : 
Common Birch Tree. ote 
Betula pendulis virgulis. Lae: pruff. 26. 
_ Weeping Birch. 
Nat. of Britain. "s 3 
Fi, July. HR} 
? 
. B. foliis deltoidibus longe acumiriatis inzequaliter fer- 
--ratis glaberrimis, ftrobilorum fquamis lobis latera- 
libus fubrotundis, petiolis glabris. 
Poplar-leav’d Birch Tree, 
Nat. of North America. 
Cult. 1750, by Archibald Duke of Argyle. ; 
Fi. July. - H. }. 
B. foliis rhombeo-ovatis duplicato-ferratis acutis fub- 
tus pubefcentibus bafi integris,, ftrobilorum {quamis 
villofis : laciniis linearibus zequalibus. 
Betula nigra. Sp. pi. 1394. 
Black, Birch Tree. 
Nat. of Virginia and Canada. 
| Introd, 1736, by Peter Collinfon, Efg. Cullinf. mf. 
Pi. July and: Angad, oe Be, 
¥ 
4 4. Be 
