CABBAGE FAMILY 



33 



6. CARDAMfNE. — Pod flat ; valves veinless, separating with an 

 elastic spring; seeds i-seriate, on thread-like stalks. 



7. Dentaria. — Similar, but with dilated, winged seed-stalks. 



Tribe 2. Sisymbrice. Seeds i-seriate ; cotyledo7is incimibent 



*8. Hesperis.— ^//^///^^ 2-lobed, decurrent ; pod 4-angled ; 

 valves keeled, 3-veined ; hairs spreading. 



9. SisVMBRiuiM. — Stigma undivided ; pod cylindric or 4-angled ; 

 valves convex, i — 3-veined ; hairs spreading, or absent ; seed- 

 stalks thread-like. 



10. Alliar FA. —Similar, but with flattened, winged seed-stalks. 



1 1. Erysimum. — Stigma undivided, or notched ; pod 4-angled ; 

 valves keeled, i -veined ; hairs adpressed, forked. 



Tribe 3. BrdssicecB. Cotyledons i?icumbent^ folded lo?2gitudi?ially ; 

 floivers yellow 



12. Brassica. — Sepals erect; pod nearly cylindric; seeds i- 

 seriate. 



13. SiNAPis. — Sepals spreading ; ^6?^/ nearly cylindric ; seeds i- 

 seriate. 



14. DiPLOTAXiS; — Fod compresscd ; seeds 2-seriate. 



Sub-order II. LatiseptcB. Fruit a la ti sept silicle 

 Tribe 4. Alyssinece. Cotyledo?is accumbent 



*i5. Alyssum. — Fetals entire; pod roundish, compressed, 

 few-seeded. 



16. Draba. — Fetals entire or 2-cleft ; pod oval or oblong, com- 

 pressed or turgid; seeds numerous, 2-seriate. 



17. CocHLEARiA. — Fetals entire; pod globose or nearly so ; 

 valves very convex, keeled ; seeds numerous, 2-seriate. 



18. Armoracia. — Similar, but with no dorsal vein to the valves 

 of the pod. 



Tribe 5. Camelifiece. Cotyledo7is iticiimbeiit 

 ■^19. CAMELfNA. — A tali herb, with cauline leaves, sessile, 

 auricled ; pod ovate, inflated, beaked ; style persistent. 



20. SuBULARiA. — A small aquatic plant ; leaves subulate ; pod 

 oval-oblong ; valves boat-shaped ; seeds numerous. 



Sub-order III. Angustiseptce. Fruit an angustisept silicle 

 Tribe 6. LepidinecB. Cotyledons incujnbent ; fioivers 7vhite 



21. Capsella. — Fod inversely heart-shaped, flat; valves boat- 

 shaped, keeled ; seeds many. 



D 



