74 



The Farm Woodlot 



ing outer branches is one of our most beautiful shade trees. 



The elms are early blooming trees. The blossoms appear 



long before the 

 leaves, and the 

 seeds are ripe 

 about the time 

 the leaves are 

 fully developed. 

 The disc-like 

 green seeds fall 

 to the ground as 

 soon as ripe and 

 when the soil is 

 favorable, they 

 grow in a few 

 days. Elm seeds 

 must be planted 

 as soon as col- 

 lected. The most 

 common species 

 is the American 

 or white elm. 

 The cork or rock 

 elm may easily 

 be distinguished 

 by the corky 

 ridges on the 

 bark of the twigs. 

 The slippery elm 

 has very hairy 



FIG. 18. American elm. Typical form. buds and the 



