236 



ALDER 



20 



Fig. 74. Alder, Alnus glutinosa. 1, flowering shoot with young male 

 and female catkins ; 2, a male catkin ; 3, one of the scales of the latter 

 bearing three male flowers and their bracteoles, seen from outside; 4, the 

 same in lateral view; 5, the same from inside; 6, the same from above; 

 7, a single male flower from outside, and 8, from inside; 9, a female 



