FLOBA OF ADEN. 
- — _ - - . '-/Ml 
Sisymbrium pendulum Desf. FI. Atl. II, 82, t (t.) 156. 
Sisymbrium hispidum Vahl Symb. II, 77. 
Diplotaxis harra Boiss. FI. Or. I, 388, Asehers. et Schweinf. FL 
d' E g. p. 41. 
Diplotaxis crassifolia DC. Syst. Veg. II, 629. 
Diplotaxis hispida DC. Syst. Veg. II, 630. 
Description : — Leaves obovate, lanceolate, coarsely dentate, hispid. 
Corolla large, yellow ; sepals ovate, tomentose. 
Siliquas pedicellate, pendulous, glabrous, linear, attenuate at the 
base; style very short ; stigma bilabiate. 
This plant varies a good deal with regard to the hairiness of its leaves.. 
With the exception of corolla and siliqua, the plant is mostly hispid. 
Locality : — Near the Shum Shum Flag Staff (Defl.) ; top of the 
Shum Shum Range (Busse); without locality (Hook. Bird wood). 
Distribution : — Arabia, S. Persia, Syria, Palestine, Egypt, Tripoli, 
Tunis, Algeria, Morocco, Sicily, S. Spain. 
i! 
Ill— CAPPARIDACEE. 
Herbs, shrubs or trees, often scandent. Leaves alternate, rarely 
fasciculate, simple or 3-7-foliate ; stipules, when present, minute or re- 
presented by short spines. 
Flowers regular or the sepals or petals sometimes unequal, rarely 
polygamous. Sepals % rarely 3 or 5, valvate, imbricate or open in 
aestivation. Petals usually 4, sessile or clawed, hypogynous or seated on 
the disk. Stamens inserted at the base or apex of the torus, few or 
very many ; anthers oblong, basifixed. Ovary sessile, or with a long or 
short stalk (gynophore) , 1 -celled ; ovules numerous, on 2-4 parietal 
capsular or baccate, or dry and indehiscent, rarely drupaceous. 
Seeds reniform or angled, albumen thin or none ; embryo incurved. 
Genera 23 ; species about 300. 
Distribution : — Chiefly in tropical, but also in subtropical countries of 
both hemispheres. 
Herbs ; fruit capsular 1. Cleome. 
Undershrub ; fruit with membranous wing, indehiscent, 
1 — seeded ........ 2. Dipterygium. 
Trees or shrubs ; fruit berried or capsular : — 
. 
(a) Sepals combined at the base into a tube . . .3. Maerua. 
( b ) Sepals biseriate : — 
* Stamens 4 — -6, inserted half way up the 
gynophore .... . . .4. Cadaba. 
** Stamens 8- o°, inserted at the base of the 
gynophore . . . . . . .5. Capparis. 
placentas. 
Fruit 
94 
