240 
FLORA OF ADEN. 
of hairs (coma) ; embryo straight ; cotyledons flat, concave, convoluted 
or contorted. 
Genera about 110 ; species about 900. j 
Distribution .-—Chiefly tropical. 
1. Adenium Roem. et Sell. 
Shrubs with fleshy, globose stems and entire leaves. 
Flowers near the end of the branches, shortly pedicelled, purple. 
Calyx 5-partite ; lobes lanceolate, glandular. Corolla-tube cylindric 
below, pubescent on the outside, subpubescent on the inner side ; lobes 
convolute in estivation, shorter than the tube. Filaments 5, very short ; 
anthers linear-sagittate, coherent with the stigma. Ovaries 2, globose 
or elliptic, glabrous. Style 1 ; stigma capitate, apex bidentate, margin 5- 
dentate, base surrounded by a reflexed cupuliform membrane. Ovules oo 
pendulous, imbricate. 
Fruit 2 follicles. Seeds cylindric- prismatic, comose at both ex- 
tremities ; testa striate ; albumen scanty ; embryo straight ; radicle 
superior, ovoid-oblong, apex conical ; cotyledons much shorter than the 
radicle, ovate, foliaceous. 
Species 5. 
Distribution .-—-Arabia, Africa. 
1. Adeiiium arabicum Balf. f. Trans. Roy. Soc. Edinb. XXX, 162. 
Adenium Honghel Dot. Reg. XXXII, t. 54 (7b. tantum , non 
descript.) non DC. Prodr. VIII, 412. 
Adeuium obesum Anders. Journ. Linn. Soc. V, Suppl. p. 23 ( syn . 
par ton excl.) non Roem. et Schult. 
Adenium obesum Hook. Bot. Mag. t. 5918 ( Ic . tantum,non descript.). 
Arabic name : — * Aden, Aobbiana. 
Description : — A shrub, 1 — 3 feet high, with milky juice. Stem thick, 
globular-goutv, 1 — 2 feet in circumference, fleshy, vapidly diminishing 
to short stout branches. Branches terete, aphyllous, dichotomous. 
Leaves crowded near the apex of the branches, elliptic, ovate or 
spathulate, subpetiolate, obscurely mucronate, entire, veinless, glabrous, 
glaucous on the lower surface. 
Pedicels solitary or geminate, sub axillary or terminal, villous. 
Flowers bright rosy, longer than the leaves (1| — 2 inches). Calyx- 
segments lanceolate, pubescent. Corolla puberulous on the outside ; 
lobes rotundate, obtuse, with 5 villous lines interiorly ; limb 1 inch broad. 
Ovaries globose. 
Flowers .-—March 1862 (Playfair), May 1859 (Anders.), Dec. 
(Schweinf .) . 
