Sesamum.] xcvu. pedaline.e (stapf). 557 



-5-7 lin. long, 3 lin. wide, densely pubescent, beak up to 2 lin. long. 

 Seeds 1| lin. long, margins (or at least one of them) acute, sides rather 

 broad, oblique, pitted, faces iiat or one of them convex, with prominent 

 iradial lines from the margins towards the centre. — Hiern in Cat. Afr. 

 PI. Welw. i. 799. 



lower Guinea. Angola : among shrubs near Benguella, Wawra, 286 ; on 

 the sandy shore between Benguella and Catumbella River, Welwitsch, 1646 ! 

 Mossamedes ; Chella Mountains, Johnston ! 



Yar. digitaloides, Stapf. Somewhat taller with larger leaves and flowers and a 

 more copious and more glandular indumentum. Corolla dull red or deep rosy-purple 

 spotted in the throat. Seeds slightly larger with more acute margins. 8. digitaloides, 

 Welw. ex Schinz in Bull. Herb. Boiss. iv. 454; Hiern in Cat. Afr. PL Welw. i. 798. 

 S. scMnzianum, Engl. & G-ilg in Bauni, Kunene-Samb. Exped. 371, not of 

 Aschers. 



lower Guinea. Angola: Mossamedes; banks of the Rivers Giraul and Bero, 

 near the sea-shore, Welwitsch, 1647 ! in dry river beds north of Mossamedes, Goss- 

 weiler, 54! near Mossamedes, H&pfner, by the Coroca River, above Garganto do 

 Diabo, 1000 ft., JBcium, 7 ! 



I suspect that this variety represents merely a more robust state of S. rigid urn. 

 The leaves attain over 1-^ in. in length and over J in. in width in Gossweiler's 

 specimen and 2 in. and ^ in. respectively in Baum's and Hopfner's. The longest 

 pedicels of Gossweiler's plant are 6 lin., those of Hopfner's 8k lin. long, whilst the 

 calyx measures up to 3 lin. and the corolla up to Ik in. in length.. The tomentum 

 is much more copious in Gossweiler's specimen than in Welwitsch, 1646, and 

 distinctly villous in Baum, 7, and most of the soft spreading hairs are gland-tipped, 

 •which is rarely the case in typical S. rigidum. Welwitsch 1647, on the other hand, 

 is intermediate between both. The general habit, the shape of the leaves and 

 corollas is the same in the type and the variety. 



12. S. radiatum, Schumach. in Schumach. dj Thonn. Beshr. Guin. PI. 

 282. The whole plant emitting an unpleasant odour, like Hyoscyamus. 

 Steins erect, simple or branched, up to 4, or more, feet high, more or 

 less glandular-pubescent (often villous in the upper part when young) 

 tind sparingly mealy-glandular, obtusely quadrangular, sulcata. Leaves 

 scarcely or not at all heteromorphic ; lower ovate, coarsely toothed, 

 acute at both ends, up to 2\ in. long and 1 J in. broad, borne on petioles 

 up to 1 in. long ; upper leaves lanceolate, entire (rarely dentate), up to 

 4 in. long, § in. broad, with shorter but always distinct petioles, 

 gradually passing into the similar foliaceous bracts, sometimes also the 

 upper leaves ovate and dentate ; all the leaves sparingly and per- 

 sistently hairy and mealy-glandular below, nervation impressed above, 

 raised below. Pedicels very short, at length up to \ in. long, 

 2-bracteolate at the base ; nectaries sessile. Calyx 2-2^ lin. long, 

 pubescent ; segments lanceolate, acuminate. Corolla up to 1£ in. long, 

 obliquely campanulate, purple or purplish and white ; lowest lobe up 

 to ^ in. long, suborbicular. Capsule 1-1 J in. long, 3|— 4 lin. broad, 

 pubescent to subvillous, with a short broad beak. Seeds l^-li lin. long, 

 dark brown, faces radially rugose, sides narrow, pitted, one margin 

 acute, the other usually rounded oft' ; hence the seed plano-convex or 

 bi-convex. — Webb in Hook. Niger Fl. 150. S. occidentale, Kegel & 

 Heer in Ind. Sem. Hort. Turic. (1812); DC. Prodr. ix. 250. S. 



