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Sesamum. | XCVII, PEDALINE® (STAPF), 557 
oe 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 flat or one of them convex, with prominent 
radial lines from the margins towards the centre.—Hiern in Cat. Afr. 
Pl. 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 / 
Var. 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. S. digitaloides, 
Welw. ex Schinz in Bull. Herb. Boiss, iv. 454; Hiern in Cat. Afr. Pl. Welw. i. 798. 
S. schinzianum, Engl. & Gilg in Baum, 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- 
wetler, 54! near Mossamedes, Hipfner, by the Coroca River, above Garganto do 
Diabe, 1000 ft., Baum, 7! 
I suspect that this variety represents merely a more robust state of S. rigidum. 
The leaves attain over 14 in. in length and over } in. in width in Gossweiler’s 
Specimen and 2 in. and 4 in. respectively in Baum’s and Hépfner’s. The longest 
pedicels of Gossweiler’s plant are 6 lin., those of Hipfner’s 8} lin. long, whilst the 
calyx measures up to 3 lin. and the corolla up to 14 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.& Thonn. Beskr. Guin. Pl. 
282. The whole plant emitting an unpleasant odour, like Hyoscyamus. 
Stems erect, simple or branched, up to 4, or more, feet high, more or 
less glandular-pubescent (often villous in the upper part when young) 
and sparingly mealy-glandular, obtusely quadrangular, suleate. Leaves 
searcely or not at all heteromorphic; lower ovate, coarsely toothed, 
acute at both ends, up to 2} in. long and 1} 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 4 in. long, suborbicular. Capsule 1-1} in. long, 34-4 lin. broad, 
pubescent to subvillous, with a short broad beak. Seeds 14-14 lin. long, 
dark brown, faces radially rugose, sides narrow, pitted, one margin 
acute, the other usually rounded off; hence the seed plano-convex or 
bi-convex.— Webb in Hook. Niger Fl. 150. SS. occidentale, Regel & 
Heer in Ind. Sem. Hort. Turic. (1842); DC. Prodr, ix. 250. SS. 
