UNNflCAN ARTIFICIAL SYSTEM. Io7 



The zizania or Canada-rice, and pharos, both grasses, compose 

 . this order, to which Schreber has added epibaterium and pometia 

 ofForster, as well as the splendid guettarda. The sagus or sago- 

 palm, andcocos orocoa-nut tree are likewise said to belong to it. 



146. Polyandria : Including those plants of the 

 general character, which produce barren flowers with 

 more than seven stamens. 



This is a very considerable order, containing numerous plants for 

 familiar references. Here will be found the different genera of 

 horn-wort, water-milfoil, arrow-head, begonia, burnet, oak, walnut, 

 beech-tree, chesnuttree, birch tree, hornbeam-tree, hazel-nut-tree, 

 arum, aud several others. 



147. Monadelphia: Embracing those vegetables, 

 the barren flowers of which have their filaments united 

 into one set. 



The genus pinus or fir-trees, arbor-vitae or tree-of-life, cypress, 

 palma-christi or castor-oil-tree, and a few other tribes of plants, are 

 to be found in this order. 



148. Polyadelphia .-Including those plants of the 

 monoecious character, the barren flowers of which, have 

 their filaments united into more than two sets. 



Sir James Edward Smith proposes this order should be established 

 for the reception of the gourd plants, and accordingly the different 

 genera of cucurbita or gourd, cucumis or cucumber, bryonia or 

 bryony and others, are removed from their former supposed order, 

 syngenesia, to their present arrangement here. 



CLASS XXII. DKECIA. 



149. Character: The twenty-second class contains 

 SJiose plants, which have no perfect flowers, but produce 



