2l8 88. CRUCIFERAE 



i8. Seeds with an accumbent radicle, in 2 rows. — Species i. South Africa. 



(Under Arabis L.) Turritis L. 



Seeds with an incumbent radicle, usually in i row. — Species 2. East, 

 South, and North Africa, and Cape Verde Islands, (Under Arabis L. or 

 Sisymbrium L.) Stenophragma Celak. 



19. (2.) Fruit i-seeded 20 



Fruit 2- or more-seeded 22 



20. Sepals petal-like. Petals reddish. Glands none. Ovary 3-celled. Style 



very short. Fruit elliptical, much compressed. Shrubs. — Species 



I. South Africa (Cape Colony) Schlechteria Bolus 



Sepals not petal-like. Petals yellow or whitish. Glands present. Ovary 

 2-celled. Fruit orbicular. Herbs 21 



21. Filaments with a tooth-hke appendage. Style none. Fruit flat, without a 



partition. Radicle accumbent. Fruit-stalk bent back. Leaves linear. 

 Hairs star-shaped. — Species 2. North Africa. . . Clypeola L. 



Filaments not appendaged. Style thread-shaped. Fruit thick, with a 

 rudimentary partition. Radicle incumbent. Fruit-stalk erect or 

 spreading. Cauline leaves sagittate. Hairs 2 — 3-cleft. — - Species i. 

 North Africa. Used medicinally. (Vogelia Medik.) . Neslia Desv, 



22. Fruit 2— 4-seeded 23 



Fruit many-seeded 3^ 



23. Petals yellow 24 



Petals white or reddish. 26 



24. Sepals, at least the lateral, saccate at the base. Filaments without an 



appendage. Stigma 2-lobed. Fruit with laterally compressed, boat- 

 shaped valves and a linear partition. Seeds 2 — 3 ; radicle incumbent. 

 Shrubs. Leaves entire. Flowers solitary, axillary. — Species i. 



Island of Socotra Lachnocapsa Balf . 



Sepals not saccate. Herbs or undershrubs. Flowers in spikes or race- 

 mes 25 



25. Median and lateral glands present. Filaments without an appendage. 



Stigma 2-lobed. Fruit winged, 4-celled, indehiscent. Seeds 4 ; funicle 

 very short. Embryo spirally twisted ; radicle incumbent. Plants 

 covered with glandular tubercles. Leaves toothed. — Species i. 



North Africa. Used medicinally Bunias L. 



Median glands absent. Filaments usually appendaged. Stigma obscurely 

 lobed. Fruit dehiscing in two valves. Embryo not spiral ; radicle 

 accumbent. Plants without glandular tubercles. — Species 13. North 

 and South Africa. Some are used in medicine or as ornamental plants. 

 (Including Meniocus Desv.) Alyssum L. 



26. Fruit-valves with a large, wing-like appendage near the top, projecting 



inwards between the seeds. Style long. Seeds 4. Leaves toothed. — 



Species i. North Africa. " Rose of Jericho." . . Anastatica L. 



Fruit-valves without an appendage 27 



