288 CI. VERBENACEE (BAKER). [ Premna. 
with resinous glands. Cymes forming a corymbose or thyrsoid panicle. 
Flowers minute, whitish or greenish. 
Species 40 or more, inhabiting the warmer regions of the Old World, many of 
them Indian. 
Inflorescence thyrsoid. 
Leaves 2 to a node, opposite. 
Leaves obtuse 
_ 
. P. ferruginea, 
Leaves acuminate . . . . . . 2. P, longipes. 
Leaves 4 to a node. 
Branchlets and leaves glabrous. . . . 8. P. angolensis, 
Branchlets and leaves pubescent . . . . 4. P. quadrifolia. 
Inflorescence cory mbose. 
Corymb small. 
Calyx-teeth minute, broadly deltoid 5. P. resinosa. 
Calyx-teeth large, oblong . 6. P. somaliensis. 
Corymb ample. 
Corolla-tube twice as long as the calyx. 
Stamens overtopping the corolla-lobes . . 7. P. macrosiphon. 
Stamens not overtopping the corolla-lobes. 
Leaves glabrous beneath . . . . 8. P. serratifolia. 
Leaves hairy beneath . . . . . 9. P. hispida. 
Corolla-tube scarcely longer than the calyx. 
Leaves glabrous beneath. 
Leaves oblong. 
Calyx-teeth small. . . . . 10. P. Milner. 
Calyx-teeth large . . . . . 11. P. macrodonta. 
Leaves cordate-ovate . . . . . 12. P. Holstit. 
Leaves pubescent beneath. 
Climber . . . . . . . 13. P. Hildebrandtii. 
Erect shrubs or small trees. 
Pubescence ferruginous .. . . . 14. P. velutina. 
Pubescence grey. 
Calyx-teeth minute. 
Bracts ovate. . . . . 15. P. viburnoides. 
 Bracts linear-subnlate . . . 16. P. senensis. 
Calyx-teeth as long as the tube . . 17. P. oligotricha. 
1. P. ? ferruginea, A. Rich. Tent. Fl. Abyss. ii. 172. Branchlets 
tetragonal, clothed with fulvous tomentum. Leaves opposite, petioled, 
ovate, obtuse, crenate, hairy on both surfaces. Inflorescence a lax 
thyrsoid panicle; flowers subsessile. Calyx very short; lobes 5, acute. 
Corolla-tube pubescent, as long as the calyx; limb 5-lobed. Stamens 
exserted from the corolla-tube. 
Mile Land. Abyssinia: Shire, Quartin-Dillon. 
2. P. longipes, Baker. An erect shrub, with slender terete 
pubescent branchlets. Leaves opposite, distinctly petioled, oblong, 
acuminate, cuneate at the base, 3-4 in, long, crenate, membranous, 
slightly pubescent above, densely pubescent beneath. Inflorescence 
a lax thyrsoid terminal panicle 3-4 in. long; branches pubescent ; 
pedicels reaching ;'; in. long; bracts minute, ovate, acuminate. Calyx 
cylindrical, densely pubescent, } in. long ; teeth minute, deltoid. Corolla- 
