POLYANDKIA. 429 



segments of the calyx, though retained by 

 Jussieu, may perhaps be scarcely distinct; 

 yet there is a difference in their habit, 

 which has induced me to leave it for 

 farther consideration. Kaller united them 

 both with Fragaria and Comanun, which 

 the character and habit of the latter totally 

 forbid, and Gurrtner has well suggested a 

 «mark from the smoothness of the seeds in 

 Fragaria, (as well as Comarum.) to 

 strengthen that of its pulpy receptacle. 

 Whatever difficulties may attend these ge- 

 nera, how admirably does the fruit serve 

 us in Rosa, Rubus, Dryas and Geum, 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. Polyandria. Stamens numerous, 

 inserted into the Receptacle. 



1. Monogynia, The genera of this order are 



