66 



A DISCOURSE 



The Ash, Elm, TiHa, Poplar, Hornbeam, Willow, Salices, oic. are 

 distinguished by their Keys, Tongues, Samera, Pericarpia, and Theca, 

 small, flat, and husky skins including the seeds as in so many foliols, bags, 

 and purses, fine membraneous cases. Catkins, Palms, Juluses, &c. need- 

 less to be farther mentioned here, being so particularly described in the 

 chapters following, as are also the various Evergreens and Exotics. 



