COLOUR OF YOUNG LEAVES 163 



FIG. 41 

 YOUNG LEAF OF CYCAS CIRCINALIS, L. 



the delicate green parts being tucked away inside. 

 This can be well seen in FLEMINGIA (fig. 42). 



There is an interesting feature in connexion with 

 the opening of buds of tropical plants, which every 

 one must have noticed. It is that the young leaves 

 are very often of a red or purple colour, and that 

 they generally hang down quite limp, and become 



