VASCULAR PLANTS. 95 



6. Tropidocarpum, Hook. 



Siliqua dorsally compressed, linear, with 1- 

 nerved, carinate valves, and very narrow replum. 

 Seeds oo. 



. flowers yellow. 



7. Nasturtium, B.. Br. 



Siliqua linear, with concave valves, and only 

 rudimentary nerve. Seeds go , 2-seriate in each 

 valve . 



0. 0. %. aquatic: flowers white, yellow. 



8. Sisymbrium, L. 



Siliqua linear, with concave, 3-nerved valves. 

 Seeds oo , 1 -seriate in each valve. 

 0.00. U • flowers yellow, white. 



9. Barbarea, E. Br. 



Siliqua linear, 4-angular with concave, 1- 

 nerved valves. Seeds oo, compressed, 1-seriate 

 in each valve. 



. 11 . flowers yellow. 



10. Brassica, L. 



Siliqua linear, with concave, more than 1- 

 nerved valves. Seeds oo , globose, 1-seriate in 

 each valve. 



0. 0. U. flowers yellow. 



11. Erysimum, L. 



Siliqua linear, 4-angular, with carinate, 1- 



