130 LINN#AN ARTIFICIAL SYSTEM. 



might be added, garJen-patiencc, monk's-rhubarb, shecp's-sorrcl. 

 and all the species of dock. 



30. Hexagynia : Including such plants of the class, 

 as bear flowers with six pistils. 



There is only the heart-leaved damasoninm or damasonium indi- 

 cnm, a native perennial of the East Indies, to constitute this order. 



37. Polygynia .-Comprehending those plants of the 

 class, which bear flowers with many pistils. 



This order, like the last, consists of only one genus ; this is the 

 alisma or water-plantain, five species of which, are peculiar to Great 

 Britain, one of New Holland, and another of North America. 



CLASS VII. HEPTANDRIA. 



38. Character: This class embraces such plants as 

 have flowers with seven stamens. (F. 180.) 



It is a very inconsiderable branch of the twenty-four classes, and 

 possesses no sort of claim to a natural arrangement : no two of the 

 genera which it contains, are placed by Linnaeus in any of his natu- 

 ral orders. 



39. Division: Although the class heptandi ia, is one 

 of the smallest in the system, it is still subdivided into 

 four orders; viz. monogynia, digynia, tctragynia, and 

 heptagynia, all established from the number of pistils in 

 each flower. 



40. Monogynia: Consisting of such plants of the 

 class, as produce flowers with one pistil only. 



The genus rescuing, of which the common horse-chcsnut of this 

 country is a species, together with a few other genera of foreign 

 plants, compose the order in question. 



