60 



ZESSONS WITS PLANTS 



the individual parts of the leaf (or leaflets) are 

 recurved. (The pupil will also observe the leaf- 



like bud-scales, 

 and the leaf- 

 scars.) It is not 

 necessary, there- 

 fore, that the 

 -parts of a leaf 

 be folded in the 

 same manner as 

 the entire leaf is. 

 62. A fern shoot 

 is represented in 

 Fig. 61. A side 

 view of the un- 

 rolling or uncoil- 

 ing tip is shown 

 at a, and a front view — showing some of the 

 parts expanded — at 6. This is a circinate or 

 coiled method of folding, and is not common aside 

 from the ferns and their allies, although it occurs 

 in the sundew. 



63. We find, then, that there are various ways 

 in which the miniature members are folded in 

 the bud. If we were to examine a honeysuckle 

 shoot (Fig. 56), we should observe that the edges 

 of the leaves alternately overlap. That is, one 

 edge of each leaf lies in the trough or hollow 



l-'iG. 60. 

 Vernation of horse-chestnut. 



