Verbena. | CI, VERBENACEE (BAKER). 287 
simple leaves and dense spikes, a native of Extratropical South America, is now estab- 
lished at the Cape and in Mauritius, Bombay, Madagascar, and the Canary Isles, but 
we have no specimens from Tropical Africa. 
8. DURANTA, Linn.; Benth. et Hook. f. Gen. Pl. ii. 1150. 
Calyx subcylindrical; teeth 5, minute. Corolla-tube cylindrical ; 
lobes 5, spreading, short, obtuse, unequal. Stamens 4, didynamous, 
included in the corolla-tube; anther-cells parallel. Ovary 8-celled ; 
cells 1-ovuled ; style short; stigma oblique, dilated, 4-lobed. Drupe 
enclosed in the accrescent calyx; pyrenes 4, 2-celled. Seeds exalbu- 
minous.——-Shrubs, unarmed or spinous. Leaves opposite or verticillate, 
entire or toothed. Flowers racemose. 
Species 4—5, wild only in Tropical America. 
1. D. Plumieri, Jacg.; Schauer in DC. Prod. xi. 615. A shrub 
5-10 ft. high, with glabrous or finely pubescent branchlets, unarmed 
or spinous. Leaves opposite, distinctly petioled, oblong, acute or 
obtuse, entire or inciso-crenate. Flowers in copious long terminal 
racemes; bracts linear. Flower-calyx }—} in. long. Corolla bright 
lilac, more than twice as long as the calyx; lobes suborbicular, 
pubescent inside ; expanded limb }-} in. diam. Drupe yellow, the size 
of a pea, much shorter than the closed accrescent calyx.—Bot. Reg. t. 
244; Giirke in Engl. Pfl. Ost-Afr. C. 338. D. repens and D. erecta, 
Linn. Sp. Pl. ed. i. 637, 
Upper Guinea. Sierra Leone: Sherboro Island, Garrett in Herb, Scott- 
Elliot, 4846! 5853! Waterloo, Kirk! and without precise locality, Barter ! Lagos, 
Moloney ! Niger Territory: Old Calabar River, Kalbreyer, 209! 
Nile Land. British East Africa: Niamniam ; by the Atasilli Brook, Schwein- 
JSurth, 3154! 
Lower Guinea. Angola, Welwitsch, 5760! 
South Central. Congo Free State: Monbuttu ; Munaza, Schweinfurth, 3456! 
Mozamb. Dist. Lake region: Ukira and Issanjo (ex Giirke). 
A native of Tropical America, now widely spread in the Old World. 
9. PREMNA, Linn.; Benth. et Hook. f. Gen. Pl. ii. 1152. 
Flowers herinaphrodite or polygamous. Calyx small, campanulate, 
truncate or shortly 2-5-lobed, accrescent. Corolla-tube short, sub- 
cylindrical; limb patent, with 4 orbicular equal or subequal lobes. 
Stamens 4, didynamous, inserted in the corolla-tube, more or less 
exserted from the tube ; filaments filiform ; anthers ovoid or subglobose ; 
cells parallel or divergent. Ovary 2-celled or spuriously 1-celled ; 
ovules 4, attached to the side of the cells; style subulate, shortly bifid 
at the stigmatose apex. Drupe small, globose ; mesocarp thin, fleshy ; 
endocarp hairy.—Shrubs or trees, sometimes scandent, with glabrous 
or hairy branchlets. Leaves 2—4-nate, entire or dentate, often dotted 
