BIRCH FAMILY. 325 
LS. al ba, | var: Pgs te 
ach. Leaves tistirn taper- 
pointed, macs serrate, ‘ibodk on 
both sides 
PopLAR-LEAVED VARIETY 
Wuire Betutsa. White Birch. 
Trunk 20 —25 feet high with a a re 
bark and numerous slender branches. 
2-3 inches long, heart-shaped or comb hat 
truncate at bas e with a very long point ; peti- 
oles ha Fertile 
Poor soils. Maine to ee a 
the coast. Fl. April. rr yes 
Obs. A very graceful tree Epi 
on the poows soil. wood, 
thongh not of the first “gual for 
fuel, makes char The 
strai 
as ros peta for bean vines, and 
brushy tops are similarly used law pea vines. 
2. B. pa Ait Leaves 
4 ovate, Rinne, doubly serrate,— 
veins beneath hirsute, petioles 
glabrous ; lateral lobes os the fertile 
aments short, sub-or bicular. 
eo Paper Birch. Canoe 
i 
oo -60 or 70 feet high, and 1 r 3 
eet in boa vated branches slender 0 - flexi- 
tied . with 
n inch 
= tong, pendulous on a peduncle three- 
fourths of an inc’ = in lenge: 
Canada. Fl. April-May. 
Fr. Jaly ~ Augus 
Obs. This oes remarkable, as 
furnishing, in its thin, firm and ane 
ble bark, the material of which 
borigines 
_ tA of our country made 
their portable ose Vario 
other arti 
are manufactured fm the bark, which realy seperated thin 
Fria. 224, The White Birch (Betula alba, var var. popliflia 
Fic, 225 Pea eee ot Seared ee ee 7 
