GENERA OR FAMILIES. 147 



(34) Isatis — poucli laterally compressed, one-celled, one-seeded, 



the valves keeled, scarcely separating. 



tt Poucli twO'Valved, icith a dissepiment. 



X Pouch laterally compressed, the dissepiment in the narrow 

 diameter, the valves keeled or ivinged. 



(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. 



XX 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^. 



(41) Pumaria — 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^. 



(43) Prankenia — sepals combined into a tubular calyx, with 



L 2 



