182 
FLORA OF ADEN. 
sessile or stipitate ; ovules many ; style short or elongate ; stigma termi- 
nal. 
Pod terete or flat, usually septate between the seeds, dehiscent or 
indehiscent. Seeds transverse, rarely longitudinal, horizontally or verti- 
cally compressed, albuminous. Cotyledons plane or sinuous. 
Species about 380. 
Distribution : — The Tropics ; a few extra-tropical. 
Stipules lanceolate or subulate — 
Valves of legume with a row of cresfc-like plates . 1. C. obovata. 
Valves of legume unappendaged — 
Leaflets 5—8 pairs, obtuse, pubescent . . . 2. C. holosericea. 
Leaflets 5 — 8 pairs, acute, glabrous . , , 3. C. angustifolia. 
Stipules narrow-cuspidate • . . . . . 4. C. adenensis. 
Stipules large, rotundato-reniform (cultivated) . . 5. C. auriculata. 
1, Cassia obovata (L.) Collad. Hist. Cass. p. 92, tab. XV, A ; 
DC. Prodr. II, 492 ; A. Rich. Tent. FI. Abyss. I, 249 ; Anders. Journ. 
Linn. Soc. V, Suppl. p. 18; Boiss. FI. Or. II, 631; Hook. FI. Brit. 
Ind. II, 264; Oliv. FI. trop. Afr. II, 277 ; A. Terrac. FI. d'Anfilha 
p. 24. 
Cassia senna L. Sp. PI. 539 {ex parte'). 
Cassia obtusa Roxb. Hort. Beng. p. 31. 
Senna obtusa Roxb. Fl. Ind. II, 344. 
Cassia Burmanni Wight in Madras Journ. VI, 5. 
Cassia aschrek Forsk. Fl. Aeg.-Arab. p. 86. 
Names : — Sreissi, Aschirak (Arabic) ; sometimes called Jamaica Senna, 
Italian Senna, Country Senna. 
Description : — Herbaceous, perennial, erect or ascending from a woody 
stock, 1 — 4 feet high. Branches spreading, glabrous, except the very 
young parts. Leaves 2 — 5 inches long; petioles | — J inch long; stipu- 
les 5 inch long, obliquely lanceolate, very acute. Leaflets 3 — 6, rarely 
7 pairs, f — 1 by § — | inch, broadly oblong or obovate- oblong, obtuse, 
mucronate, pale green above, glaucous or puberulous beneath, base 
obtuse. 
Racemes erect, axillary, at length usually overtopping the leaves, 
rather laxly manv-flowered. Sepals rather unequal, very obtuse. Petals 
J inch long, obovate-oblong, shortly clawed, yellow. Perfect stamens 7, 
very unequal, the 2 or 3 lowest much the largest, the staminodes minute ; 
filaments short. Ovary appressed-tomentose. 
Legume flat, oblong-reniform, broadly rounded at the extremity and 
obliquely tipped with the remains of the slender style, 1J — 2J inches 
long, 7 — 10 lines broad ; valves membranous, glabrous or pulverulent, 
transversely marked with anastomosing veins, and longitudinally over 
