208. SCROPHULARIACEAE 485 



11. Corolla subequally 5-lobed, blue red or white ; tube straight or slightly 



curved. Calyx tubular, 4 — 5-toothed. Capsule straight, oblong or 



ovate. Leaves undivided ,12 



Corolla more or less distinctly 2-lipped ; lobes unequal 14 



12. Calyx 2-hpped, 4-lobed, 5-nerved. Stamens inserted in the lower 



part of the corolla-tube. Lower leaves opposite, upper alternate. — 



Species i. Southern East Africa Eylesia S Moore 



Calyx subequally 4 — 5-toothed, 7 — lo-nerved 13 



13. Calyx 7 — 9-nerved, 4-toothed. Stamens inserted in the upper part of the 



corolla-tube. Leaves all opposite. — Species 3. West Africa. (Under 



Buchnera L.) Stellularia Benth. 



Calyx lo-nerved, usually 5-toothed. — Species 60. Tropical and South 

 Africa. {Buchnera L.) Buechnera L. 



14. Corolla-tube abruptly curved at or above the middle. Calyx tubular. 



Capsule straight, oblong or ovate. Leaves undivided 15 



Corolla-tube straight or gradually curved 16 



15. Placentas thin. Ovules few, large. Stem prostrate. — Species 3. East 



Africa Cycniopsis Engl. 



Placentas thick. Ovules numerous, small. Stem erect. — Species 30. 

 Tropical and South Africa and Egypt. Some are noxious weeds. 



Striga Lour. 



16. Calyx tubular, 5-toothed. Capsule ellipsoid, straight, not beaked. — 



Species 12. Central and South Africa. . . . Cycnium E. Mey. 

 Calyx campanulate, 5-cleft. Capsule usually oblique and beaked, rarely 

 globose and not beaked. — Species 25. Tropical and South Africa. 



Rhamphicarpa Benth. 



17. (9.) Anther-halves (anther-cells) very unequal, one of them fertile, the 



other barren (without pollen) or almost so 18 



Anther-halves equal or subequal, both of them fertile 27 



18. Leaves scale-like, yellow or reddish 19 



Leaves well developed, green 20 



19. Corolla with a narrow limb, red. Barren anther-cell very small. — Species i_ 



Madagascar Tetraspidium Bak. 



Corolla with a broad limb. Barren anther-cell usually long. — Species 30. 

 Southern and tropical Africa. {Aulaya Harv.) . . Harveya Hook. 



20. Fertile stamens 2, inserted at the throat of the corolla ; barren ones filiform. 



Corolla with a long curved tube and a 2-lipped limb. Leaves undivided. 



— Species i. East Africa Strigina Engl. 



Fertile stamens 4 21 



21. Anthers partly with, partly (two of them) without a barren cell. Corolla- 



tube long, inflated. Stem erect. Leaves undivided 22 



Anthers all with a barren cell, which in two is sometimes very small ; in 

 this case stem climbing. Herbs or undershrubs 23 



