14. (1.) Fruit indehiscent, winged, 1-seeded. Petals 4. Stamens 6. Ovary with a very short stalk, 1-celled. Ovules 1-2. Style short. Undershrubs. Leaves undivided.--Species 1. Egypt and Nubia. [Subfamily =DIPTERYGIOIDEAE=.] =Dipterygium= Decne. Fruit dehiscing by 2 or more valves. Ovules 4 or more. 15 15. Fruit 1-seeded, dehiscing by many valves. Sepals 2. Petals 5. Stamens 40-60. Ovary sessile, 1-celled. Ovules 4-6. Style long. Shrubs. Flowers fascicled.--Species 2. East Africa. [Subfamily =CALYPTROTHECOIDEAE=.] =Calyptrotheca= Gilg Fruit several-or many-seeded, dehiscing by 2 valves which separate from the persistent placentas. Sepals 4. Petals 4. Ovules numerous. [Subfamily =CLEOMOIDEAE=.] 16 16. Calyx-tube distinctly developed. Petals violet. Stamens 10-12, borne upon a short androphore. Ovary with a long stalk. Herbs. Leaves ternately compound.--Species 2. East Africa. (Under _Cleome_ L.) =Chilocalyx= Klotzsch Calyx-tube none. 17 17. Stamens inserted upon a stalk-like androphore, 6, all fertile. Ovary stalked. Herbs. Leaves digitate.--Species 1. Tropical and South Africa and Egypt. Yields vegetables, condiments, and medicaments, and is also used as an ornamental plant. (_Pedicellaria_ Schrank). =Gynandropsis= DC. Stamens inserted upon the receptacle, which is not prolonged into a distinct androphore. 18 18. Stamens numerous or intermixed with staminodes. Herbs. Leaves digitate.--Species 20. Some of them are used as vegetables. (Including _Dianthera_ Klotzsch and _Tetratelia_ Sond., under _Cleome_ L.) (Plate 53.) =Polanisia= Raf. Stamens 4-6, all fertile. 19 19. Disc reduced to 4 small glands. Ovary sessile. Style long. Trees. Leaves undivided.--Species 1. Northern East Africa (Somaliland). =Cleomodendron= Pax Disc ring-or saucer-shaped, sometimes produced into scales. Herbs or undershrubs.--Species 30. Some of them are used as ornamental or medicinal plants. =Cleome= L. FAMILY 88. CRUCIFERAE Herbs or undershrubs, rarely shrubs. Leaves alternate, rarely the lower opposite, simple, but often divided, without stipules, but frequently with auricles at the base. Flowers without bracteoles, usually in racemes, regular or nearly so, hermaphrodite. Sepals 4. Petals 4, rarely 0. Stamens 6, of which 4 are longer, rarely 2-4, hypogynous, rarely subperigynous. Glands at the base of the stamens more or less developed. Ovary superior, 1-2-celled or transversely septate, very rarely 3-celled. Ovules parietal, curved. Style simple, with 1-2 stigmas. Fruit dry, usually 2-valved. Albumen scanty or wanting. Embryo curved.--Genera 88, species 420. (Plate 54.) 1. Hairs, all or some of them, branched, at least at the base. Stigma more developed above the placentas than between them. [Tribe HESPERIDEAE.] 2 Hairs simple or wanting. 37 2. Fruit at least 4 times as long as broad. 3 Fruit less than 4 times as long as broad, or broader than long. 19 3. Fruit-valves with a horn-like appendage. Radicle of the embryo accumbent. 4