140 L1NN/EAN ARTIFICIAL SYSTEM. 



of passiflora or passion-flower, as unquestionable, to the class pen- 

 tandria, order trigynia. 



104. Heptandria : This division brings together 

 those plants of the character of the class, which have 

 flowers with seven stamens. 



This order is formed by one extensive genus, called pelargonium 

 or stork Vbill, upwards of one hundred and fifty species of which 

 are natives of the Cape of Good Hope. They are characterized by 

 their irregular flower, and tubular nectary. 



105. Octandria : Embracing those monadelphous 

 plants, the flowers of which have eight stamens. 



This is a very small order, having only the two genera aitonia 

 and pistia. 



106. Decandria .-This order is intended to compre- 

 hend such plants of the class, as have ten stamens. 



The well known genus geranium or crane's-bill, is reckoned by 

 some, as the only family of plants of this order, while others attri- 

 bute a few more. 



107. Endecandria : This order has been established 

 for the arrangement of the splendid American genus 

 brownea, the number of whose stamens is very different 

 in different species. 



The species of brownea called Rosa del Monte, has a stem 

 about sixty feet high, and its heads of purple flowers, consist of five 

 or six hundred each. 



108. Dodecandria : Here are to be found those 

 plants of the class, whose flowers have from twelve to 

 tii-cnfii stamens. 



