STORKS AGRICULTURAL EXPERIMENT STATION. 343 



THE ASHES 

 Fraxinus. 



Leaf-scars opposite, large, conspicuous, bundle-scars minute, forming 

 a curved line often more or less confluent; buds stout, scurfy, brown or 

 black with ovate bud-scales opposite in pairs; twigs stout and brittle; 

 fruit winged. 



164. Leaf-scars deeply concave on upper margin 



White Ash (Fraxinus americana)p.556 



164. Leaf-scars not deeply concave on upper margin, semicircular to 

 shield-shaped 165 



165. Bark soft-scaly; buds generally black; last pair of leaf-scars 

 generally some distance below end of twig giving a stalked-like 



appearance to the terminal bud 



Black Ash (Fraxinus nigra) p.560 



165. Bark ridged, not soft-scaly 166 



166. Buds black; trees found only in cultivation 



European Ash (Fraxinus excelsior) under Comparisons p.558 



166. Buds dark brown; trees native 167 



167. Twigs downy Red Ash (Fraxinus pennsylvanica}v.558 



167. Twigs smooth. Green Ash (Fraxinus pennsylvanica, var. lanceolata) 



under Comparisons p.558 



