POLYGAM I A. 

 CLASS XIII. 



TAMINA AND PISTILLA SEPARATE IN SOME FLOW- 

 ERS, UNITED IN OTHERS, EITHER ON THE SAME 

 PLANT, OR ON TWO OR THREE DISTINCT 

 PLANTS J SUCH DIFFERENCE IN THE ESSENTIAL 

 ORGANS BEING ACCOMPANIED WITH A DIVER- 

 SITY IN THE ACCESSORY PARTS OF THE FLOWERS. 



This Class has three Orders. 



ORDER I. 



PEDUNCULATED SEA-ORACHE. This monoecia 



plant is selected by Dr. Smith as the best example to United ~ flow . 



illustrate this Order : there are fourteen species of this Jg/^ggP* 



Genus, of which six are English. This species grows barren or far- 



° . tlle » or both; 



in salt marshes near Yarmouth, and blossoms in Au- a » on one 



plant. 



gust and September. 



Of this Class and Order Linnaeus has arranged the 

 extensive Genus Mimosa, of which Professor Mar- 

 tyn makes 85 species. The common Sensitive-plant, 

 Mimosa pudica, is the most common in Brazil, where 

 it is a native, and in the hot houses of English gar- 



