204- BORRAGINACEAE — 205. VERBENACEAE 467 



Calyx not or slightly enlarged after flowering. Corolla with scales inside. 

 Anthers unappendaged. Leaves alternate 35 



35. Corolla wheel-shaped, with 10 scales or swellings at the base of the tube, 



white or yellowish. Anthers short, blunt, projecting beyond the corolla- 

 tube. Nutlets I — 3. — Species i. South Africa. Tysonia Bolus 

 Corolla funnel-shaped, without scales or swelhngs at the base of the tube. 36 



36. Anthers projecting beyond the corolla-tube, oblong or linear. Style long. 



Corolla yellowish-red. Nutlets smooth, with an entire margin. — 



Species i. North-west Africa. [Mattia Schult.) . Rindera Pall. 



Anthers concealed within the corolla-tube. Style short. Corolla blue or 



violet. — Species 3. Egypt Paracaryum Boiss. 



SUBORDER VERBENINEAE 



FAMILY 205. VERBENACEAE 



Leaves opposite or whorled, very rarely alternate, simple or compound with 

 I — 7 leaflets, without stipules. Flowers nearly always more or less irregular, 

 hermaphrodite or polygamous. Sepals more or less united below. Petals 4 — 8, 

 usually 5, united below, imbricate in bud, the foremost inside. Stamens 4, 

 usually in two pairs of unequal length, alternating with the corolla-lobes, 

 rarely 2 or (Tectona) 5—6. Filaments free. Anthers opening inwards by two 

 longitudinal slits. Disc more or less distinctly developed. Ovary superior, 

 sessile, entire or shghtly lobed, completely or incompletely 2- or 4-celled, rarely 

 (Duranta) 8-celled, sometimes only i cell fertile. Ovules solitary in each 

 complete or incomplete cell ; micropyle turned downwards. Style terminal 

 or nearly so, simple or 2 — 4-cleft. Seeds with straight embryo. — Genera 27, 

 species 340. (Plate 133.) 



1. Flowers in racemose (centripetal) spikes racemes or heads. Ovules basal, 



inverted 2 



Flowers in cymose inflorescences or solitary. Ovules attached laterally 

 or at the apex, straight or half-inverted 15 



2. Seeds albuminous. Fruit dry. Ovary 2-celled ; one cell sometimes 



rudimentary. Stamens 4. Leaves whorled, densely crowded, hnear. 



Low shrubs. [Subfamily STILBOIDEAE.] 3 



Seeds exalbuminous. Leaves usually opposite. [Subfamily VERBENOI- 

 DEAE.] 7 



3. Corolla two-lipped, 5-lobed 4 



Corolla regular or nearly so 5 



4. Calyx slightly two-hpped. Upper lip of the corolla flat. Anther-halves 



parallel, free. Leaves in whorls of three. — Species i. South Africa. 



Xeroplana Briq. 



Calyx regular. Upper lip of the corolla slightly convex. Anther-halves 



divergent below, confluent at the apex. Leaves in whorls of four. — 



Species i. South Africa (Cape Colony). . Eurylobium Höchst. 



