VEUUENACEiE. (VERVAIN FAMILY.) 309 



6. CITHAREXYLUM, L- 



Calyx cup-shaped or somewliat tubular, slightly 5-toothed. Corolla salver- 

 shaped, 5-lobcd, the throat pubescent. Stamens 4-5, included: anthers sagit- 

 tate. Ovary 4-cclled. Style thickened upward : stigma notched. Drupe juicy, 

 of two 2-seedcd bony nutlets, partly included in tlie enlarged indurated calyx. — 

 Trees or shrubs, with entire mostly gland ular-petioled leaves, and small flowers 

 in slender spikes or racemes. 



1. C. villosum, Jacq. Branches 4-angled, hairy or tomentose ; leaves 

 somewhat coriaceous, oblong or oblong-obovate, obtuse, entire, tomentose and 

 pale beneath, roughened and shining above, narrowed into a short biglandular 

 petiole ; spikes declining, loose-flowered ; corolla smooth externally', the tube 

 as long as the calyx, the lobes rounded or notched ; stamens 4 ; drupe globose, 

 half included in the enlarged calyx. — South Florida. — Leaves 2' -5' long. 

 Spikes 2' -4' long. Corolla 2" long. Drupe 4" in diameter. 



7. DURANTA, L. 



Caly.x tubular, .5-ribbed, 5-toothed. Corolla somewhat bilabiate, pubescent in 

 the throat ; the upper lip 2-lobed ; the lower 3-lobed. Stamens 4, included. 

 Ovary 8-celled. Style short : stigma oblique. Drupe baccate, of four 2-seeded 

 bony nutlets, included in the enlarged beak-pointed calyx. — Shrubs. Leaves 

 opposite or whorled, entire, dotted. Flowers showy, in axillary and terminal 

 racemes. 



1. D. Plumieri, Jacq. Spineless or spiny ; branches and racemes pubes- 

 cent ; leaves oblong or obovate, obtuse, entire, or serrate near the apex, tapering 

 into a slender petiole ; racemes curving, loose-flowered ; lower bracts leafy ; 

 drupe globose. — South Florida. — Leaves l'-2' long. Corolla 5" long, lilac. 

 Drupe yellow. 



8. CALLICARPA, L. French Mulberry. 



Calyx small, cup-shaped, 4-toothed. Corolla funnel-shaped, 4-cleft. Sta- 

 mens 4, equal, exserted. Ovary 4-celled. Style slender; stigma capitate. 

 Drupe baccate, of four separate 1-seeded nutlets. — Shrubs, with a glandular or 

 scurfy mostly stellate pubescence. Leaves opposite, undivided, serrate, petioled. 

 Flowers in axillary forked cymes. 



1. C. Americana, L. Branches and leaves scurfy ; leaves ovate-oolong, 

 acute at each end, crenate-serrate, rough above, hoary beneath, becoming smooth- 

 ish ; cymes many-flowered, as long as the petioles ; corolla blue ; drupe purple. 

 — Dry open woods, Florida to North Carolina, and west to Mississippi. June 

 and July. — Shrub 3° - 8° high. Leaves 4' - 6' long. 



9. AVICENmA, L. 



Calyx of 5 imbricated concave sepals. Corolla bell-shaped, 5-lobed. Sta- 

 mens 4, equal, exserted : anthers 2-celled. Ovary 2-celled, with two collateral 

 amphitropous suspended ovules in each cell. Style short or none. Capsule 



