Corolla. 4 petals, unequal; petals inversely egg-shaped, 

 obtuse, expanding, the 2 outer ones much larger, equal, the 

 2 inner small, reflected. Claws oblong, erect. 



Stamina. Filaments 6, awl shaped, erect, the 2 lateral ones 

 shortest. Anther* roundish. 



Pistillum. Germen roundish, compressed. Style simple, 

 short. Stigma blunt. 



Pericarpium. Pouch erect, nearly circular, compressed, 

 notched at the end, encompassed by an acute border. Cells 

 2. Partition spear-shaped. Valves boat-shaped, keeled, 

 compressed. 



Seeds several, somewhat egg-shaped. 



DENTARIA. 



Calyx. Perianthium 4 leaves; leajits egg-oblong, approaching 



towards the top, blunt, deciduous. 

 Corolla. 4 petals, forming a cross; Petah circular, obtuse, 



very slightly notched at the end, flat, ending in c laws as long 



as the calyx. 

 Stamina. Filaments 6, awl-shaped, as long as the calyx, 2 of 



them shorter. Anther a heart-oblong, erect. 

 Pistillum. Germen oblong, the length of the stamina. Style 



very short and thick. Stigma obtuse, notched at the end. 

 Pekicarpium. Siliqua long, cylindrical; cells 2; valves 2, 



opening with a jerk, and the valves rolling back; partition 



rather longer than the valves. 

 Seeds many, somewhat egg-shaped. 



GERANIUM. 



Calyx. Perianthium 5 leaves, or 1 leaf with 5 divisions ; leajits 

 egg-shaped, acute, concave, permanent. 



Corolla. Petals 5, inversely heart-shaped, or egg -shaped, ex- 

 panding, large. 



