LINN/EAN ARTIFICIAL SYSTEM. 161 



ot veratrum; the sycamore and common maple, the sensitive plant, 

 and humble-plant, two species of mimosa ; the Egyptian-thorn, the 

 balsam-tree, the elephant-apple, looking-glass plant, and the differ- 

 ent families of atriplex or orach, parietaria or pellitory, valantia or 

 looking-glass plant, a-gilops or hard-grass, acacia, and several others. 



163. Diaecia: Embracing those plants of the class, 

 which have the different flowers on two of the same 

 species. 



The common and one-leaved ash-tree, are the only two illustra- 

 tions to be collected from British botany. The foreign species of 

 ash, together with the genera gleditschia or honey-locust-tree, bro- 

 simum or bread-nut, diospyros or date-plum, and a few others, 

 appear to compose this subdivision of the class. 



164. Tricecia: Embracing those plants of the class, 

 which have the different flowers on three different plants ; 

 or in other words, one plant producing perfect flowers, 

 another barren flowers, and a third plant of the same spe- 

 cies, fertile flowers. 



This order only claims two genera of plants; the ceratonia or 

 carob-tree, and the large family of licus or fig. 



CtASS DERIVED FROM A CONCEALMENT OF THE STAMENS. 



165. This division brings us to the last class of the 

 Linn fe an Artificial System. The plants which it em- 

 braces, will be found to differ very materially from those 

 we have already considered, and to constitute Nature's 

 gradual steps to another division of her kingdom. 



CLASS XXIV. CRYPTOGAMIA 



166. Character: The class cry ptogamia, contains a 

 p 2 



