88. CRUCIFERAE 22/ 



Fruit ovoid. Style rather long, with long lobes. Radicle incumbent ;. 

 cotyledons folded, inserted at the bend of the embryo. Sepals erect. 

 Petals rose-coloured. Spinous shrubs. Leaves undivided. — Species 2. 

 North Africa to Nubia Zilla Forsk.. 



99. (91.) Fruit compressed from the back or not compressed ; hence partition 



as broad as the fruit 100 



Fruit laterally compressed ; partition narrower than the fruit. . . . 104 



100. Seeds 4, in a single row, flat, with a long free funicle ; radicle accumbent. 



Fruit with a soon vanishing partition ; valves flat, without a distinct 

 median nerve ; style very short. Lateral sepals saccate. Petals 

 violet. Only two lateral glands present. Leaves pinnately dissected. 



Fruit-stalks bent downwards. (See 92.) Ricotia L. 



Seeds more than 4, nearly always in two rows. Fruit with a persistent 

 partition. Sepals not saccate 10 1 



loi. Seeds flat, winged. Ftmicle adnate to the partition at the base. Radicle 

 incumbent ; cotyledons folded. Fruit with a stalk-hke appendage at 

 the base ; valves slightly convex. Petals rose or violet. Leaves 

 undivided or lobed. — Species 2. North Africa. Used medicinally. 



Savignya DC. 



Seeds turgid or flat but not winged. Funicle free. Radicle accumbent. 



Petals white or yellow 102 



102. Fruit-valves with a very faint median nerve not reaching the top, or without 



a distinct median nerve, convex. Seeds turgid. Style-apex lobed. 



Median and lateral glands developed. (See 70.) Nasturtium R. Br. 



Fruit-valves with a distinct median nerve reaching the top. Median 



glands wanting 103 



103. Fruit- valves distinctly convex. Seeds turgid. Stjde-apex truncate 



beneath the stigma. Petals white. Filaments curved. — Species i. 

 Naturahzed in the Island of St. Helena. (Under Cochleanu L.) 



Kernera Medik. 



Fruit-valves rather flat. Style-apex lobed or depressed beneath the 



stigma. Glands 4. Leaves undivided. (See 33.). . . Draba L. 



104. (99.) Median and lateral glands present. Sepals erect. Fruit winged. 



Style long. Seeds numerous. Radicle incumbent ; cotyledons folded. 



Leaves undivided 105 



Median glands absent. Style short, rarely long, but then radicle ac- 

 cumbent. Cotyledons not folded 106 



105. Petals white, with dark veins. Fruit obcordate. Style-apex shortly 



and obtusely lobed. Hispid herbs. — Species i. North-west Africa. 



Psychine Desf. 

 Petals violet or red. Fruit ovoid. Style-apex distinctly and acutely 

 lobed. Glabrous herbs. — Species i. North Africa and Abyssinia. 



Schouwia DC. 



