ON THE STRUCTURE OF BUDS 



137 



slightly pentangular, each of the five angles being made 

 up of one stipule from each of two contiguous and 

 successive pairs. The pentangular character of the bud 

 is due to the leaves being on the |- plan of arrange- 



231 



232 



233 



234 



235 



QUEECUS PEDUNCULATA. 



FIGS. 215-234. Pairs of stipule? forming the scales of the winter-bud, sketched in 

 the first week of May ; some of them had small lateral buds between thein, but 

 no leaf ; the bud had resumed growth, was oblong, and 16-5 mm. in length ; x 2. 

 FIG. 235. x2. st. .<;<, stipules : Z, leaf, conduplicate in bud. but not likely to attain 



.any great size if it had been allowed to develop. 

 FIGS. 229-235. Stipules which had elongated when growth was resumed in spring. 



N.B. The bud sketched was a large lateral one, and the leaves would be aggre- 

 gated at the apex of the shoot when the latter is full-grown. 



ment. The centres of the stipules correspond with 

 the angles, while the leaves lie in the middle of the 

 flat surfaces. 



The first two pairs (figs. 215, 216) have a slender 

 point, which is often broken off in winter. The next 



