FLORA OF ADEN, 
U9 
XXV.— 1U 151 ACE i:. 
Trees, shrubs 01 herbs, prostrate or scandent. Leaves opposite or 
verticillate, simple, entire ; stipules various, inter- or intra-petiolar, 
persistent or deciduous, free or connate or adnate to the leaf-base or 
petiole. 
Inflorescence various. Flowers hermaphrodite, rarely unisexual. 
Calyx-tube adnate to the ovary ; limb various. Corolla inserted on the 
ovary, various in form and aestivation, tetramerous or pentamerous. 
Stamens usually isomerous with the corolla-lobes, inserted at the 
mouth or throat or on the tube of the corolla ; filaments various ; anthers 
2-celled. Disk at the top of the ovary, usually annular or cushion- 
shaped. Ovary inferior, 1 — 12-eelled, usually 2-celled ; ovules 1 or 
more in each cell ; style simple, hi- or multifid. 
Fruit various. Seeds albuminous ; embryo straight or curved. 
Genera about 350 • species about 4,000. 
Distribution : — 'Chiefly tropical and subtropical. 
1. Oldenlandia L, 
Herbs or shrubs with opposite leaves, acuminate or setose stipules 
adnate to the petiole or leaf-base. 
Flowers arranged in terminal or axillary panicles or clusters, small or 
delicate. Calyx-tube globose obovoid|turbinate or obconic-oblong ; limb 
regular, deeply 4- or rarely 5*lobed, rarely with alternating teeth. 
Corolla various in shape, membranous ; tube straight or somewhat 
curved ; throat glabrous or bearded ; limb 4- or rarely 5-lobed, regular. 
Stamens 4, rarely 5, inserted in the throat of the corolla ; filaments short. 
Ovary 2-celled ; ovules numerous ; placentas attached to the septum ; 
style filiform ; stigmas 2, linear. 
Capsule dehiscing longitudinally at or from the apex or dicoccous or 
tardily dehiscent. Seeds angled, globose or ellipsoid ; testa smooth oi 
pitted ; embryo clavate in fleshy albumen. 
Species about 70. 
Distribution : — Tropical and subtropical, chiefly Asiatic. 
Flowers in corymbose cymes . . . . l.O. Schimperi. 
Flowers in racemose cymes . . e . 2. O. stricta. 
