130 
FLORA OF ADEN . 
but often by the side of the leaf. Sepals 3-5, free or connate or united 
into a campanulate calyx, usually valvate. Petals as many or fewer or 
0, inserted round the base of the torus, contorted or variously imbricate, 
induplicate or valvate. Stamens usually indefinite, inserted on a short 
contracted torus or on an elongated one. Filaments free or more or 
less united below, sometimes 4-5-adelphous, all fertile or some sterile. 
Anthers 2-celled, linear or glabose, dehiscing longitudinally or by pores. 
Ovary free, 2-10-celled. Style entire ; stigmas usually small, as many 
as the cells of the ovary, sometimes large ; ovules anatropal, sometimes 
solitary, pendulous, generally numerous, in two rows in each cell. 
Fruit 2-10-celled or 1-celled by abortion, dry or fleshy, loculicidally 
dehiscent, indehiscent or separating into cocci. Seeds solitary or few,, 
ascending, pendulous or transverse ,* testa coriaceous, sometimes pilose. 
Albumen fleshy. Embryo straight. Cotyledons roundish, leafy. Radicle 
next to the hilum. 
Genera 40. . 
Species about 350. 
Distribution : — Especially abundant in the tropics, less in the tem- 
perate zones. 
Petals glandular at the base internally ... 1. Grewia. 
Petals not glandular ...... ,2. Corchorus. 
1. Grewia L. 
Trees or shrubs, mostly deciduous, at times scrambling or climbing. 
Branchlets, leaves and sepals mostly clothed with stellate hairs. Simple 
hairs on petals, androgvnophore and ovary. Leaves more or less distinctly 
dentate, rarely lobed, base generally oblique, with 3, rarely 4 or 5 basal 
nerves. 
Flowers usually yellow, in axillary, terminal or extra-axillary cjmes 
or panicles. Sepals 5, distinct, valvate, often coloured on the inside, 
deciduous. Petals 5, shorter than the sepals, in most species with a 
thick base (claw), bearing on the inside an area, generally papillose, 
surrounded by a densely villous, semicircular or circular rim. Stamens 
as a rule oo , free, together with the ovary on a raised more or less costate 
torus (androgynophore or gonophore), the ridges of which alternate 
with the petals, the lower part glabrous, the upper hairy or tomentose. 
Ovary 2- or 4-celled, in most species tomentose ; style 1, subulate ; ovules 
as a rule 8 ; stigma generally broad, more or less distinctly 2-5- 
lobed or laciniate. 
Fruit a drupe, often deeply lobed, with 1 — 4 pyrenes, which are 1- or 
few-seeded, the endocarp often osseous, surrounded by a fibrous mesocarp. 
