STEMS AND THEIK APPENDAGES. 



63 



which they are developed. JL eave $ are generally formed 

 the elongajtion jtrid expansion of the JigneousJ^undles 



, of "TTssvfes,, the interspaces being filled with cellular 

 matter (Parenchyma), of green or greenish color. 

 ^That the woody part or frame-work of the leaf is of 



Fiff. 20. LEAVES OP LARCH. 



Fig. 21. LEAF OF LILAC. Fig. 22. LEAF OF BEECH. 



is shown 



in the readiness with which many kinds produce both 

 buds and roots; consequently, leases may. produce stei 



as wellj as stems leaves. 



