CLASS MONADELPHIA. 141 



The new genus Polanisia, lately separated from 

 Cleome, has a similar corolla with that genus ; but 

 from 8 to 32 stamens ; and a silique of an oblong, 

 linear form, and sessile in the calyx. This plant is 

 very heavy scented, and viscid, with ternated leaves ; 

 and is found, though not very commonly, on the 

 sandy shores of lakes and rivers. 



The curious Stanleya, of the banks of the Missouri 

 and of Florida, where there is also an additional 

 species, appears to unite the Crucifer^s and Cappa- 

 rides almost uninterruptedly ; for with the flower, 

 partly, of Cleome, and its stipitated fruit, it presents a 

 complete dissepiment in the narrow and long silique, 

 and has oblong seeds, with flat cotyledones. The 

 S. pinnatifida produces thick, and glaucous, pinna- 

 tifid leaves, not much unlike those of Sea-kale ; its 

 flowers are bright yellow, in long and crowded ra- 

 cemes ; with a very spreading yellow calyx j long, 

 erect, conniving petals ; and 6 stamens. 



CHAPTER XXIII. 



OF THE CLASS MONADELPHIA. 



The plants of this class are only to be known 

 from those of the other simpler classes by the com- 

 bination or union of their filaments into one body, 

 and hence the name of Monadelphia, or one brother- 

 hood. This character, sometimes ambiguous or slight, 

 as m+Geraitium and Pelargonium, is not calculated 

 to bring together an uniform and natural group of 

 plants. Though one of the orders, at least, contains 

 a natural assemblage of the strictest symmetry ; this 

 is the order Polyandria. The orders are formed 

 without any reference to the pistils or fruit, and un- 



