POLYANDRIA. 429 



segments of the calyx, though re tamed by 

 Jussieu, may perhaps be scarcely distinct ; 

 vet there is a difFerence in their habit, 

 which has induced me to leave it for 

 further consideration. Haller united them 

 both with Frcii^arfa and Comarum^ which 

 the character and habit of the latter totally 

 forbid, and Giertner has well suggested a 

 mark from the smoothness of the Seeds in 

 Tragaria, (as well as Comnrinn,) to 

 strengthen that of its pulpy receptacle. 

 Whate^ er dilliculties may attend these ge- 

 nera, how admirably does the fruit serve 

 us in Rosa, Rubu,s, JDnjas and Gciim, to 

 discriminate those whose leaves, flowers, 

 and habit all stamp them as distinct! A 

 student cannot do better than to study 

 this order and these genera, as an intro- 

 duction to the knowledge of more obscure 

 ones; and the beautiful plants which com- 

 pose it, mostly familiar to every body, are 

 easily obtained. 



Class 13. Volyandria. Stamens numerous, 

 inserted into the Receptacle. Orders 7- 



i. Monogi/uia, The genera of this order are 



