•562 xcvn. pedaline^e (stapf). [Sesamum. 



Lover Guinea. German South-west Africa: Hereroland ; near Salem, Dinter, 

 .2 ; near Ubih, Lindner ! 



This is very closely allied to, if not identical with, S, Marlothii, from which it 

 differs (apart from the lower leaves, which are not known) only in the somewhat 

 larger and more oblique corolla and the less stout pedicels. 



7. CERATOTHECA, Endl. ; Benth. et Hook. f. Gen. PL ii. 1059. 



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

 subcampanulate ; limb very oblique, porrect, obscurely 2-labiate, the 

 lowest lobe by far the longest. Stamens subdidynamous, inserted low 

 down 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. Cap- 

 sule oblong, compressed transverse to the septum, more or less loculicidal 

 towards the base ; each carpel produced into a short spreading horn at 

 the apex. Seeds numerous, compressed, obovate. — Annual erect or 

 procumbent herbs. Leaves membranous, petioled, dentate or crenate. 

 Flowers solitary in the axils of the leaves on short pedicels, rose, lilac 

 or yellow. 



Species 5, one of them extending into South Africa. 

 All the leaves entire . . . . . . . 1. C. elliptica. 



Leaves more or less coarsely dentate or crenate, or the 

 uppermost entire. 

 Corolla f-1 in. long. 



Leaves ovate with few mucilage glands ; bracts 



lanceolate, entire 2. C. integribracteata. 



Leaves usually deltoid to hastate, glaucous or 

 almost white beneath f'r.om mucilage glands ; 

 bracts similar to the leaves, but smaller and 

 narrower . . . . . . . 3. C. sesamoides. 



Corolla 2-3 in. long 4. C. triloba. 



1. C. elliptica, Schinz in Bull. Herb. Boiss. iv. 452. Stem slender, 

 erect, 1^ ft. high, much-branched from the base, terete below, obscurely 

 quadrangular above, shortly and spreadingly pubescent and like the 

 whole plant more or less viscid. Leaves elliptic, obtuse or subacute, 

 entire, more or less acute at the base ; lower f-lj- in. long, 7-10 lin. 

 broad ; upper narrower, passing into the entire oblong- lanceolate 

 foliaceous bracts, pubescent, particularly below ; lateral nerves 2-3, 

 very oblique ; lower petioles \-l in. long, the upper much shorter. 

 Pedicels 1-1-i lin. long, with a pair of subulate bracteoles at the base. 

 Calyx 2 lin. Long, densely pubescent. Corolla yellowish with a purplish 

 tinge, black-punctate all over, slightly over 1 in. long ; lower lobe sub- 

 orbicular 3£ lin. long, 4-5 lin. broad. Capsule 5 lin. long; horns 2J lin. 

 long. — C. integribracteata, Hiern in Cat. Afr. PL Welw. i. 800, partly. 

 Lower Guinea. Angola: Mossamedes ; in sandy places by the Eiver Bero, 

 near Cavalheiros, Welwitsch, 1654 ! Gambos, Newton. 



