CHAPTER LXII. 



DICOTYLEDONS CONTINUED. 



Topic VI : Dicotyledons with distinct petals and 

 hypogynous flowers. 



ORDER URTICALES. 



1162. Lesson VIH The elm family (Ulmaceae). The elm 

 tree belongs to this family. The leaves of our American elm 

 (Ulmus americana) are ovate, pointed, deeply serrate, and with 



Fig. 558. 



Spray o leaves and flowers of the American elm ; at the left above is section of 

 flower next is winged seed (a samara). 



an oblique base as shown in fig. 558. The narrow stipules 

 which are present when the leaves first come from the bud soon 

 fall away. The flowers are in lateral clusters, which arise from 



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