5 2 Cruciferae 



Pods compressed. Seeds 2-seriate, compressed. 



Diplotaxis. 



B. Siliculosae. Pods short, dehiscent through their 

 whole length. 



a. Latiseptae. Pods compressed parallel to the 

 replum, which is hence as broad as the pod's greatest 

 diameter. 



Tribe 4. Alysseae (Latiseptae pleurorhizae). Seeds 

 2-seriate. Radicle accumbent o ziz. 



Pods oblong, compressed, many-seeded. 



Draba (including Erophila). 



Pods circular, 2-8-seeded. *Alyssum. 



Pods globose, many-seeded. Cochlearia. 



Tribe 5. Camelineae (Latiseptae notorhizae). Seeds 

 2-seriate. Radicle incumbent o j j. 



Tall herbs, flowers small, cauline leaves auricled. 



*Camelina. 



Tribe 6. Subularieae (Latiseptae diplecolobae). As 

 Camelineae, but cotyledons curved with lengthened bases 

 turned up in direction of radicle. 



Scapigerous water-herb with subulate leaves. 



Subularia. 



b, Angustiseptae. Pod much compressed at right 

 angles to replum, which is hence narrow. 



Tribe 7. Thlaspeae (Angustiseptae pleurorhizae). 

 Cotyledons straight, radicle accumbent o z=. {^Flowers 

 white.) 



Pods obovate, notched. Petals equal. Filaments 

 without scales. Thlaspi. 



Pods orbicular. Petals white or lilac, very unequal. 

 Filaments without scales. Iberis. 



