550 xcvu. pedalixe^e (stapf). [Eogeria. 



Also in South Africa. Miss Elliott's specimen lias the corolla-tube more 

 widened at the base (4 lin. across) so that it might to described as shortly saccate, 

 and tlu leaves are much smaller than in the type (1 in. long) and rather penni- 

 nerved with an indication of 3 lobes* It .is possibly the same form which Engler 

 described as var. triloha. 



3. R. bigibbosa, Engl. Jahrb. x. 256. Stem stout, like the whole 

 plant nearly-glandular all over, swollen and about 5 lin. thick at the 

 middle; internodes 10-15 lin. long. Leaves ovate, coarsely sinuate- 

 dentate, lf-2 in. long, 1-1J in. broad; teeth 2-2-J lin. long; petioles 

 up to ] lin. long, persistent. Fruits on short, arrested, leafy branch- 

 lets. Capsule 1| in. long, 7-8 lin. in diam. where widest, beak curved 

 forwards, base bulging out po^ticously into 2 gibbosities. Seeds lh lin. 

 long. 



lower Guinea. German South-west Africa: Hureroland, Otyimbingue, 

 3000 it., Marlotk, 1485 ! 



G. SESAMUM, L. ; Benth. et Hook. f. Gen. PL ii. 1059. 



Calyx small or middle-sized, 5-partite, usually suboblique. Corolla 

 obliquely campanulate ; limb more or less oblique, obscurely 2-labiate, 

 lowest lobe usually distinctly longer than the others. Stamens sub- 

 didynamous, inserted low clown in the corolla-tube, not conniving ; 

 filaments slender, filiform ; anthers dorsifixed, cells parallel, dehiscing 

 longitudinally to the base. Disc annular, equal. Ovary 2-celled ; cells 

 divided by a spurious septum almost to the apex ; ovules numerous, 

 1-seriate in each division. Capsule oblong, slightly compressed con- 

 trary to the septum, loculicidal towards the base, more or less beaked, 

 without any lateral appendage at the apex. Seeds numerous, com- 

 pressed, obovate. — Annual or perennial, erect or procumbent herbs. 

 Leaves membranous, sometimes rather firm, petioled or the upper sub- 

 sessile, polymorphous. Flowers solitary in the axils of the leaves on 

 mostly very short pedicels, pale pink to deep purple. 



Species about IS, some extending to South Africa and India. 

 * Sesamotyptts. — Plants distinctly (though some- 

 times sparingly) pubescent or long-hairy to 

 villous. Leaves undivided, rarely the lower 

 3-foliolate or 3-partite. Seeds with more or 

 less acute margins, rarely with a narrow 

 membranous rim (S. antirrliinoides) ; faces rugose 

 or smooth. 

 Prostrate herbs. 



Leaves about as long as the internodes, obtuse at the 



base, shortly but distinctly petioled . . . 1. S. Heudelotii. 



Leaves much longer than the internodes, subcuneate 



at the base, sessile 2. S. r'epens. 



Erect herbs. 



Leaves homomorphous, always undivided ; seeds more 

 or less radially rugose (rarely granular) on the 

 faces. 



