GENERA OR FAMILIES. 147 



(34) Isatis pouch laterally compressed, one-celled, one-seeded, 

 the valves keeled, scarcely separating. 



ft Pouch two-valved, with a dissepiment. 



% Pouch laterally compressed, the dissepiment in the narrow 

 diameter, the valves keeled or 



(35) Iberis pouch ovate or roundish, notched, the valves boat- 



shaped, winged at the back ; seeds one in each cell ; petals 

 unequal, two outer ones much larger. 



(36) Lepidium pouch roundish or oblong, entire or notched, 



the valves compressed, keeled or winged at the back ; seeds 

 one in each cell ; petals equal. 



(37) Capsella pouch triangular-obcordate, the valves com- 



pressed, keeled but not winged ; seeds numerous. 



JJ Pouch dorsally compressed, or globose, the dissepiment 

 oval, in the broadest diameter. 



(38) Cochlearia pouch globose, the valves very convex, one- 



nerved ; style permanent ; seeds many. 



(39) Armoracia pouch elliptical or globose, the valves very 



convex, nerveless ; style permanent ; seeds many. 



(40) Camelina pouch subovate, the valves ventricose, with a 



linear prolongation at the end, which is confluent with the 

 persistent style ; seeds many. 



7. Fumariaceous Plants. FUMARIACE.E. 



(41) Fumaria upper petal spurred at the base ; fruit an inde- 



hiscent one-seeded nut. 



(42) Corydalis upper petal spurred at the base ; pod two- 



valved, many-seeded. 



8. Frankeniaceous Plants. FRANKENIACE.E. 



(43) Frankenia sepals combined into a tubular calyx, with 



L 2 



