FLORA OF ADEN. 
93 
I Mathiola stylosa Hochst. et Steud. in Schimp. PL Arab. Pel. n. 860. 
Arabic name : Hamma. 
Description : — Suffruticose, hoary with closely appressed white hairs; 
branches slender, rather rigid, divaricate. Leaves very narrow-linear. 
Flowers bright rose, rather distant, in narrow, spicate racemes ; buds 
oblong. Pedicels at length 1 — 2 lines long, appressed or ascending. 
Siliquas 1 inch long more or less, slightly curved outwards, linear, 
1^-1 1- lines broad ; valves hoary, undulate, with a faint midrib. Per- 
sistent style about 1 line long. 
Balfour found in Socotra (C flowers varying in colour from a pink 
to that livid or violate shade seen in, for example, the common Malcolmia 
maritima.^ 
Flowers: — March (Schweinf.). 
Fruits : — December (Schweinf.) . 
Locality : — Goldmore Valley (Schweinf., Defl.); without locality 
(Hook., Birdwood, Hildebr). 
Distribution : — Central and Southern Arabia, Socotra, Eritrea, Nubia, 
Upper Egypt. 
Note. — Farsetia longisiligua Dene, is distinguished from F. Hamil- 
tonii Hoyle (Illustr. 71) by its much larger flowers, pods, and non- 
capitate stigmas. F. linearis Dene, is separated from F. longisiliqua 
by its smaller flowers and shorter and relatively broader pods. 
2. Diplo taxis DC. 
Herbs resembling Brassica with regard to the general aspect and 
only distinguishable by the more distinctly biseriate seeds. 
Sepals at length spreading. 
Siliquas linear, sometimes elongate, compressed, without or some- 
times with a short 1-seeded beak ; valves with a median nerve ; septum 
membranous. Seeds many, biseriate, ellipsoidal or globose. Cotyledons 
conduplicate. 
Species about 20. 
Distribution : — Western Asia, Northern Africa, Europe. 
1 Diplotaxis pendula (Vahl) DC. Syst. Veg. II, 630 ; Prodr. 
I, 222,; Anders. Journ. Linn. Soc. V, Suppl. p. 2 ; Aschers. et 
Schweinf. Suppl, FI. d ; Eg. p. 75 ; Batt. et. Trab. FI. d^ Alg. p. 63. 
