CABBAGE FAMILY 33 



6. CARnARifNK. — Fod flat; valves veinless, separating with an 

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



7. DeiNTaria. — Similar, but with dilated, winged seed-sta/ks. 



Tribe 2. Sisvrnbii'a. Seeds i-seriate ; cotyledons i>icuml<e)it 



*8. Hesperis. — .S'//};v//(Z 2-lobed, decurrent ; pod 4-angled ; 

 valves keeled, 3-veined ; hairs spreading. 



9. Sisymbrium. — Stii^ina undivided ; pod cylindric or 4-angled; 

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

 stalks thread-like. 



10. Alll.aria. — Similar, but with flattened; winged seed-sialks. 

 I r. Erysimum. — Stii^ma undivided, or notched ; pod 4-angled ; 



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



Tribe 3. Brassicece. Cotyledons incumbent, polded ionxili'di?iallv ; 

 floivers yelloii' 



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

 seriate. 



13. SiNAPis. — Sepals spreading; /-t;!/ nearly cylindric; seeds i- 

 seriate. 



14. DiPi.OT.^xis. — Tod compressed ; seeds 2-seriate. 



Sub-order PI. Latisepfce. I'ritit a latisept siltcle 

 Tribe 4. Alyssinece. Cotyledons acciunbent 



*iv Alvssum. — Fetals entire; pod roulidish, compressed, 

 few-seeded. 



16. Dr.apa. — Tetals entire or 2-cleft ; pod oval or oblong, com- 

 pressed or turgid; seeds numerous, 2-seriate. 



17. Cochle.aria. — Fetals entire: pod globose or nearly so ; 

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



iS. Ar-MORacia. — Similar, but with no dorsal vein to the valves 

 of the pod. 



Tribe 5. Camelinecr. Cotyledons incumbent 



*i9. Cameli'xa. — A tall herb, with cauline leaves, sessile, 

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



20. Subul.\ria. — A small aquatic plant ; 'leaves subulate ; pod 

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



Sub-order IPI. AngustiseptcS. Fruit an angusfisept sillcle 

 Tribe 6. Lepidinece. Cotyledons incumbent : floioers 7ohite 



21. Capsella. — F'od inversely heart-shaped, flat; rw/cw boat- 

 shaped, keeled ; seeds many. 



