SYNOP8I8 OP THE GENERA. 



28. Caudami'ne, [Page 922.] Siliqua linear lanceolate, valves 



flat, rib- les.s, separating elastically. Seeds ovate, attached 

 by a slender cord. Cotyledons flat, accural lent. O— 



29. Nastur'tium, [Page 926.] Siliqua nearly cylindrical, 



linear. Stigma sub-bilobate. Calyx equal at the base, 

 spreading. Seeds small. Cotyledons accumbent. Q— 



2. Siliqua with the valves permanently closed. 



30. Rapha'nus, [Page 928.] Siliqua linear, oblong, or sub- 



conical, smooth, and inseparable, or beaded and separating 

 at the joints, many seeded. Seeds round, pendulous. 



Cotyledons conduplicate. (^^ Calyx erect. 



