ON THE STRUCTURE OF BUDS 



141 



FIG. 243. FIG. 244. FIG. 245. 



WHITEBEAM (Pyrus Aria). 



FIG. 246. 



FIG. 236. Winter-bud ; p,p, persistent base of fallen petioles; ab, axillary bud 



ss, second scale. FIG. 237. First scale. FIG. 2:i8. Second scale. 



PIG. 239. Third scale. FIG. 240. Fiffh scale. FIG. 241. Seventh scale. 



FIG. 242. Ninth scale showing stipules, st, st, and petiole, p. 

 FIG. 243. Z, first leaf ; st, st, its stipules. FIG. 244. Second ditto. 

 FIG. 245. Third ditto. FIG. 246. Fourth ditto. 



