564 . xovn. pedaline/E (stapf). [Ceratotheca. 



Kenyon, 8 ! Likoma Islands, John-ton ! between Kondow-e and Karonga, Whyte / 

 Karonga, Scott ! and without precise locality, Whyte ! Buchanan, 1238 ! Shesheke, 

 on the Zambesi. Holuh ! 



The length of the horns of the capsule varies considerably even in the same 

 specimen, and they may be reduced to small sharp points or quite suppressed as is 

 the case in some of the fruits of Whyte's and Scott's specimens from Karonga. 

 These muticous or submuticous forms agree, however, in all other characters with 

 typical C. sesamoirfes. According to Dawe this species is cultivated and used like 

 Sesamum in the Acholi country. 



4. C. triloba, E. Meyer ex Bernh. in Linncea, xvi. 29. Stems 

 erect, up to 6 ft. high, simple or branched, obtusely quadrangular, 

 pubescent to villous. Leaves polymorphic, lower long-petioled, from 

 broadly ovate-cordate or almost rounded to broadly triangular and 

 3-lobed with the lateral lobes spreading, I5-6 in. long and broad, 

 coarsely crenate, more or less pubescent to subvillous, particularly below ; 

 upper leaves narrower, shortly petioled, passing into the ovate -lanceolate 

 or lanceolate, sparinghy crenate or entire bracts ; lower petioles 2-5 in. 

 long. Flowers opposite in a long loose raceme up to 1 ft. long ; 

 pedicels very short. Calyx \-h in. long, densely hairy ; segments 

 lanceolate. Corolla lilac with purple streaks in the throat and on the 

 lowest lobe, 2-3 in. long; lowest lobe ovate, 2-3 lin. long. Capsule 

 8-11 lin. long, 2i lin. broad, loosely pubescent to subvillous; horns 

 about 2i lin. long, much compressed at the broad base. Seeds slightly 

 over 1 lin. long, margins smooth, faces wrinkled. — Bot. Mag. t. G974 ; 

 Stapf in Dyer, Fl. Cap. iv. ii. 402. C. lamiifolia, Engl. Jahrb. xix. 

 156. Sporledera triloba, Bernh. I.e. 42; DC. Proclr. ix. 252; Gard. 

 Chron. 1887, ii. 492, fig. 99. S. krausseana, Bernh. I.e. ; DC. I.e. 

 253. Sesamum lamiifolium, Engl. Jahrb. x. 2;">6. 



Mozamb. Dist. Bechuanaland : Kalahari Desert ; Mamunwe, Lugard, 241 ! 

 Banianguato Country ; Shoshong, Holub ! Rocky Shasha River, Holub ! banks 

 and islands of Matengwe River, Holub, 1283 ! Matabeleland : Buluwayo, Rand, 

 379 ! and without precise locality, Elliott I Mashonaland : between Umtali and 

 Salisbury, Eon. Mrs. Evelyn Cecil, 52 ! Manica, Bryce ! 



Also in South Africa. The whole plant has a strong unpleasant odour like that 

 Hyoscyamus niger. 



8. PRETREOTHAMNXJS, Engl. Jahrb. xxxvi. 228. 



Calyx small, 5-partite ; segments lanceolatedinear. Corolla 

 obliquely campanulate ; limb oblique, porrect, subbilabiate ; lowest lobe by 

 far the longest. Stamens didynamous, inserted low down in the corolla 

 tube, not conniving ; filaments slender, filiform ; anthers dorsifixed, cells 

 parallel, dehiscing longitudinally. Ovary 4-celled (2-cellecl completely 

 divided by a spurious septum ?) ; ovules 3 in each division, superposed. 

 Fruit unknown. — A small shrub densely glandular-hairy in the young 

 parts. Leaves coarsely sinuate-dentate. Flowers rose-coloured, solitary 

 in the axils of the leaves on slender pedicels. 



Species 1, endemic. 



