56 VIII. CKUClFERa: (OLIVER). 



*Radicle accumbent. Siliqua not appendaged (in African species). 



Leaves entire or sinuate, hoary-tomentose. Flowers purplish . . 1. Matthiola. 

 . Leaves pinnate or pinnatisect. Valves of siliqua with or without a 



very slender midrib. Seeds usually biseriate 2. Nasturtium. 



Radical leaves lyrate. Valves of siliqua prominently carinate. 



Seeds uniseriate • • • • 3. Barbarea. 



Leaves spathulate or oblanceolate, toothed. Valves of siliqua plane 



or carinate 4. Arabis. 



Leaves pinnate or 3-foliolate (in African species). Siliqua usually 

 slightly narrowed towards its extremities. Valves without a dis- 

 tinct midrib. Seeds uniseriate 5. Cardamine. 



Leaves entire or toothed. Flowers bracteate. Siliqua rigid, recurved 



above 6. Morettia. 



Leaves linear, entire, with appressed mediofixed hairs 7. Farsetia. 



Siliqua with horn-like appendages or rounded auricles. 



Leaves linear. Siliqua short with a pair of terminal horns . . . Notoceras 



(p. 61). 



Lower leaves piunatifid. Siliqua with a pair of horns at the base . Lonchophoha 



(p. 61). 



*Radicle incumbent. Cotyledons plane. 



Leaves entire or pinnatifid. Siliqua narrow-linear; valves faintly 



3-nerved 8. Sisymbrium. 



Cotyledons twice folded transversely Heliophii.a 



(p. 65). 



Cotyledons conduplicate. 

 Radical leaves lyrate-pinnatifid. Siliqua linear, with costate valves. 



Style long or short. Seeds uniseriate 9. Brassica. 



Radical leaves lyrate or pinnatifid. Siliqua linear ; valves with a 



slender median nerve. Style short. Seeds subbiseriate . . . 10. Diplotaxis. 

 Radical leaves pinnatifid. Siliqua linear-oblong, rather turgid ; 



valves costate. Seeds biseriate 11. Eruca. 



Leaves entire amplexicaul or pinnatifid. Flowers rose .... MoricaNDIA 



(p. 67). 

 Leaves linear, entire. Flowers purple. Seeds broadly winged . . Henophyton 



(p. 67). 



B. Fruit short (not more than 3 times longer than broad) or broader 

 than long, dehiscing longitudinally. 



* Septum as broad as the valves. 

 Cotyledons plane, radicle accumbent. 



Leaves linear, entire, with appressed hairs 7. Farsetia. 



Leaves obloug, petiolate. Silicule with a pair of concave auricles at 



the apex . . Anastatica 



(p. 61). 

 Cotyledons conduplicate. 

 Silicnle orbicular, compressed ... . . Savignya 



(p.C7). 



Silicule turgid with a foliaceous beak Carrichtera 



(p. 67). 



* Septum narrow, transverse to the larger diameter of the fruit (silicules laterally compreued)- 

 Radicle incumbent. Cotyledons plane or conduplicate. 



Silimiles elliptical, winged. Cotyledons conduplicate. 



Flowers purple 12. Schouwia- 



Silicules obcordate-cuneate 13. *CArsELLA' 



Silicules oblong or subglobose, with convex valves (minute 



aquatic with linear radical leaves) 14. SubulaRIA. 



