FLORA OF ADEN . 
821 
bearing a petaloid spreading white or coloured limb. Male flowers a 
stalked stamen without floral envelope. Female flowers : Ovary 3-celled 
on an ultimately exserted stalk in the centre of the involucre ; ovule 
solitary in each cell ; styles 3, free or connate. 
Fruit a capsule of 3 bivalved cocci, separating elastically from a 
persistent axis and dehiscing ventrally or both ventrally and dorsally, 
Seeds albuminous ; cotyledons broad, flat. 
Species about 600. 
Distribution : — Cosmopolitan. 
Shrubs or undershrubs : 
Mostly aphyllous ...... 
With leaves. 
Leaves fascicled. 
Leaves cuneate-oblong or cuneate ovate or linear 
Leaves obovate-oblong, mucronulate 
Leaves not fascicled. 
Leaves mucronate. 
Leaves alternate, f — 1£ inches long 
Leaves opposite, a — 1 inch long 
Leaves acute, deflexed, \ inch long . 
Herbs : 
6. E. Schimperi. 
7. E. cuneata. 
9. E. adenensis. 
8. E. systyla. 
2. E. arabica. 
5. E. Bottae. 
Leaves linear, subfalcate, acute, up to f inch long . . 4. E. polycnemoides. 
Leaves obliquely oblong or obovate-oblong, rounded or obtuse at 
the apex, coriaceous, T \j — i inch long . . . . 3. E. granulata. 
Leaves obliquely and broadly or narrowly oblong, obtuse, serrulate, 
not coriaceous, | — 1 inch long . . . . . . 1. E. hypericifolia. 
Sectio I. — Anisophyllum. 
1. Euphorbia hypericifolia Linn. Hort. Cliff. 198 ; Boiss. in DC. 
Prodr. XV, 2, 23; Hook. Exot. FI. I, t. 36 ; Thwaites Enum. 268 ; 
Benth. FI. Hongk. 301 ; Hook. f. FI. Brit. Ind. V, 249. 
Euphorbia indica Lamk. Diet. II, 423 ; Boiss. in DC. Prodr. XV, 
2, 22, et in FI. Or. IV, 1086 ; Wall. Cat. 7711, excl. C ; Balf. f. Bot. 
Socotra, p. 264. 
Euphorbia cassioides Presl Bot, Bemerk. p. 119. 
Euphorbia decumbens Willd. Suppl. 27. 
Euphorbia androssemoides Dennst. Schluss. Hort. Mai. 36. 
Euphorbia parviflora Linn. Syst. ed. X, 1047 ; Roxb. FI. Ind. II, 
172 ; Boiss. in DC. Prodr. XV, 2, 22 ; 
Euphorbia papilligera Boiss. Cent. Euph. 8. 
Euphorbia segyptiaca Anders. Journ. Linn. Soc. V , Suppl, p. I A 
(teste Balf. f. ; non of Boiss.). 
Description : — A rather slender, rarely stout, annual, 6 — 12 inches 
high, of various habit, glabrous or sparsely pubescent, erect ascending 
i 2 
