THE STUDY OF TREES. 



259 



STAME-NS 



BRACTS 



Fig. 132. Hazel, a, male flower ; b, diagram of same. 



I. PERIANTH 

 H^L!--. INVOLUCRE' 



- BRACT ' 

 Fig. 133. Two female flowers of Hazel (note the long stigmas) and diagram of same 



Fig. 134. Young Hazel 

 shoot. 



Fig. 135. Alder. The male catkins are long, the female 

 short. The female ones to the left are i the fruiting stage. 



