110 VASCULAR PLANTS. 



a multiple of 5. Ovaries co , on a convex re- 

 ceptacle; styles lateral. Fruit oo -akenes on an 

 enlarged fleshy receptacle. 

 U. flowers white. 



?. Potent-ilia, L. 



Calyx concave or flattened, 5-lobed, aug- 

 mented by 5 bractlets. Petals 5. Stamens a 

 multiple of 5. Ovaries oo on a slightly conical 

 receptacle. Styles lateral. Fruit oo , akenes. 



2£ . £ . flowers yellow. 



4. Horkelia, Cham. & Sclilect. 



Calyx campanulate; limb 5-parfced, augment- 

 ed by 5 bractlets. Petals 5. Stamens a mul- 

 tiple. Ovaries inserted on a conical receptacle ; 

 styles sub-terminal. Fruit akenes. 



1C. flowers yellowish, pink, white. 



Family lxxvti. Sanguisorbaceae- 



Calyx-tube contracted near its apex, includ- 

 ing the ovaries. Petals often wanting. Stamens 

 and ovaries often reduced in number. Ovaries 

 1 -ovulate. 



1« Adenostoma, Hook & Am. 



Calyx funnel-shaped; tube 10-costate; limb 

 5-parted. Petals 5. Stamens a multiple. Ovary 

 1, with truncate, pubescent apex. Fruit an 

 akene, included in the peristent calyx-tube. 



b . flowers white. 



