PLATE L. SMOOTH ALDER. 



x ( f staminate catkins - M Palate catkins, x i. 

 Mature pistillate catkins, x' i. 

 Branch with leaves and fruit, x *. 

 Branch with mature fruit strobiles, x i 

 A strobile scale with seeds, slightly enlarged 

 A winged seed, enlarged. 



SC e C nl i ar l ge d f WiDter branCh sbowin " stalked bud - lenticels, leaf-soar with bundle-scars, slightly 



A leaf-scar, enlarged. 



Cross section of branch showing triangular pith, enlarged. 



