540 



OX SEEDLIXGS 



left of the axis of the plant, broadest along the upper edge and 

 entire or obscurely crenate, glabrous, deep green above, white 

 beneath, 1-7-3 cm. long, 3-4'7 cm. wide. 



Stem erect, terete, hairy or pubescent when young, glabrescent, 

 pale green, ultimately woody, arborescent ; 1st internode 2'5-4'5 cm. 

 long. 



Leaves simple, cauline, alternate (first two opposite), stipulate, 

 petiolate, alternately penninerved and finely reticulate, pubescent 

 on both surfaces when young, glabrescent, shining on both sur- 

 faces, deep green above, paler beneath, deciduous ; petioles terete, 



FIG. 672. Betula alba. Nat. size. 



or nearly so, slightly channelled on the upper side, densely hairy, at 

 least when young, comparatively short ; stipules oblong-obtuse, 

 narrow, pale brown, scarious, hairy, caducous. 



Nos. 1 and 2. Opposite, broadly ovate, obtuse, obtusely crenate- 

 serrate. 



No. 3. Alternate, broadly ovate, obtuse, entire or obsoletely 

 crenate, much smaller than the first two. 



This terminates the first season's growth. 



