486 CRYPTOGAMli. 



enced hand, according to the principle I 

 • have suggested, of retaining in them sucji 

 genera only as have a permanent difference 

 in the accessory as well as the essential 

 parts of their flowers, their bulk being by 

 such a reformation much diminished, it 

 mi2:ht be advisable to reduce them to one 

 • Class, in which the slender remains ofFohj- 

 mimia mipht commodiously be included, 

 and the title of such a Class should be Di- 

 clinia, expressing the two distinct seats or 

 stations of the organs of fructification. 



Class 24. Crijpiogamia. Stamens and Pis- 

 tils either not well ascertained, or not to 

 be numbered with any certainty. Orders 5. 



1. Filices. Ferns. The parts of their flowers 

 are almost entirely unknown. The fructi- 

 fication, taken collectively, and proved to 

 be such by the production of prolific seeds, 

 grows either on the back, summit, or near 

 the base of the frond. Some are called 

 anmdatLC, annulated, their capsules being 

 bound with an elastic transverse ring ; 

 others thecdtce, or more properly eTannu- 

 latcc^ from the want of such an appendage, 



