20 6. CRUCIFER.E. 



[Tr. V. CAMELINE^E. Cotyledons incumbent. 



21. CAMELINA. Pouch subovate; valves ventricose with a 

 linear prolongation at the end which is confluent with the 

 persistent style.] 



[Tr. VI. VELLE^E. Cotyledons conduplicate. 



22. VELLA. Pouch ovate with a dilated winged flat style 

 longer than the convex valves.] 



Suborder III. ANGUSTISEPT^E. 



Pouch (silicic) short, laterally compressed, opening with 2 

 boat-shaped valves keeled or winged on the back ; dissepiment 

 narrow, linear, or lanceolate. 



Tr. VII. THLASPIDE^E. Cotyledons accumbent. 



23. THLASPI. Pouch roundish, notched ; valves boatshaped, 

 winged at the back. Seeds many. Pet. equal. Filaments 

 simple. 



24. HUTCHINSIA. Pouch elliptical, entire ; valves boatshaped, 

 keeled not winged at the back. Seeds 2 in each cell. Pet. 

 equal. Filaments simple. 



25. TEESDALIA. Pouch roundish, notched; valves boatshaped, 

 their back keeled below narrowly winged above. Seeds 2 in 

 each cell. Pet. equal or 2 outer ones larger. Filaments 

 with a little scale at the base of each within. 



26. IBERIS. Pouch ovate or roundish, notched ; valves boat- 

 shaped, winged at the back. Seeds 1 in each cell. Pet. 

 unequal, 2 outer ones much larger. Filaments simple. 



Tr. VIII. LEPIDINE^E. Cotyledons incumbent. 



27. LEPIDIUM. Pouch roundish or oblong, entire or notched ; 

 valves compressed, keeled or winged at the back. Seeds 1 

 in each cell. 



28. CAPSELLA. Pouch triangular-obcordate ; valves com- 

 pressed, keeled but not winged. Seeds many. 



Tr. IX. SUBULARIE^E. Cotyledons incumbent, long, linear, 

 curved back above their base. Cells many-seeded. 



29. SUBULARIA. Pouch oval-oblong, laterally subcompressed; 

 valves boatshaped. 



Tr. X. SENEBIEREJE. Cotyledons incumbent, long, linear, 

 curved back above their base. Cells one-seeded. 



