Striga.] xcn. scrophulariace.e (hemsley and skan). 405 



Lower Guinea. Angola: Pungo Andongo; near Condo, Welwitsch, 5854! 

 Huilla ; River Monino, Welwitsch, 5822 ! Kiver Kubango, near Kavanga, 3600 ft., 

 Baum, 414. 



Mozamb. Dist. British Central Africa: Rhodesia; Manika, Son. Mrs. 

 Evelyn Cecil, 159 ! Gwelo, Gardner, 54! Salisbury, Rand, 521. Matabeleland,. 

 Elliott ! Ngamiland ; Okavango Valley, 3000 ft., Lugard, 270 ! 



Also in South Africa. 



Baum, 552, named S. Thunhergii, var. grandiflora, Engl, in Bamn, Kunene- 

 Samb. Exped. 369, has somewhat larger flowers than the type. It has smaller 

 flowers and shorter bracts and calyx than the variety grandiflora, Benth. in DC. 

 Prodr. x. 502. 



6. S. Welwitschii, Engl, in Engl. Jahrb. xxiii. 514, t. 12, Jigs. 

 F — G. An erect herb 5-8 in. high, everywhere densely covered with 

 soft grey pubescence, branched from the base ; rootstock erect, bearing 

 small scales ; branches about ^ lin. thick, rather densely leafy. Leaves 

 opposite, decussate, closely adpressed to the branches, linear-lanceolate, 

 5-0 lin. long, about f- lin. broad, entire, thickened and somewhat callose 

 at the apex. Spikes slender, densely-flowered, up to 3 in. long ; bracts 

 like the leaves but somewhat shorter ; bracteoles linear, 2 lin. long. 

 Calyx 2f- 3 lin. long, 5-nerved, 5-toothed, scarious between the nerves, 

 softly pubescent on the teeth and nerves ; teeth narrowly triangular, 

 1J lin. long (except the uppermost, which is much smaller). Corolla 

 pale lilac, whitish or white, glandular-pubescent outside ; tube about 5 

 lin. long, narrow below, slightly curved and much inflated above ; upper 

 lip obovate, emarginate, 2-2J lin. long, 1J lin. broad ; lobes of the 

 lower lip linear, about 5 lin. long and |- lin. broad. — Hiern in Cat. Afr. 

 PI. Welw. i. 779. 



Lover Guinea. Angola: Huilla; near Lopollo, Welwitsch, 5820! between 

 Lake Ivantala and Quilengues, Welwitsch, 5821 ! 



7. S. Rowlandii, Engl, in Engl. Jahrb. xxiii. 513, t. 12, figs, 

 A — D. An erect herb 8-16 in. high or more, usually drying green, 

 branched from the base, hispidly pubescent ; stems and branches 

 distinctly quadrangular, very narrowly winged at the angles, furrowed, 

 leafy. Leaves opposite or subopposite, decussate, linear, up to 3 in. 

 long, f-lf lin. broad, acute or subacute, scabrid. Spikes 4-8 in. long, 

 slender ; Mowers usually in pairs 2-3 lin. apart ; bracts lanceolate, 

 1J- 2£ lin. long, acute; bracteoles like the bracts but smaller. Calyx 

 3£ lin. long, 5-toothed, 5-nerved, white-pubescent ; teeth narrowly 

 deltoid, about ^ lin. long. Corolla dull lilac or pink, rather densely 

 covered outside with slender white hairs ; tube 5-7 lin. long, much 

 curved and inflated near the apex ; upper lip obovate or oblong, 

 emarginate, l.£— 1£ lin. long, about 1 lin. broad; lobes of the lower lip 

 oblong, nearly 1 lin. long, scarcely J lin. broad. Capsule elliptic to 

 obovoid, 1J lin. long, 1-1|- lin. broad. 



Upper Guinea. Sierra Leone: Ealaba, Scott-Elliot, 5207! Gold Coast t 

 Afram Plains, Johnson, 709 ! Western Lagos, Rowland ! Northern Nigeria : Nupe, 

 Barter, 1169 ! 



Parasitic on the roots of grasses. — Barter. 



