116 Class XII. Order V. 







Class XII. ICOSANDRIA. Twenty or more 

 stamens, inserted on the calyx. 



Order I. MONOGYNM. . Om style. 



145. PRUNUS. Calyx inferior, five cleft ; co- 

 rolla five petalled ; drupe with a smooth or slightly 

 seamed stone. 



Order II. DIGYJWA. Two styles. 



146. CRATJEGUS. Calyx superior, five cleft; 

 petals five ; berry two seeded. 



Order III. TRIGYNM. Three styles. 



147. SORBUS. Calyx superior, five cleft ; pe- 

 tals five ; berry three seeded. 



Order IV. PENTAGYNL&. Five styles. 



148. PYRUS. Calyx superior, five cleft ; corol- 

 la five petalled ; pome five celled ; cells two seeded. 



149. SPIRAEA. Calyx inferior, five cleft ; co- 

 rolla five petalled ; capsules two valved, many 

 seeded. 



Order V. POLYGYJWJ1. Many styles. 



150. ROSA. Calyx urn-shaped, fleshy, con- 

 tracted at the orifice, five cleft; corolla five petalled ; 

 seeds numerous, bristly, fixed to the inside of the ca- 

 lyx. 



15L RUBUS. Calyx five cleft ; corolla five pe- 

 talled ; berry composed of several one seeded gran- 

 ulations. 



