Craterostigma.|  XCI. SCROPHULARIACEH (HEMSLEY AND SKAN). 333 
in Warb, Kunene-Samb. Exped. 363. Torenia Schweinfurthii, Oliver 
in Hook. Ic. Pl. ¢. 1251. 
Upper Guinea. Northern Nigeria: Nupe, Barter / 
Wile Land. Bongo: by the River Lesi, Schweinfurth, 4009! 
Lower Guinea. Angela: Pungo Andongo, Welwitsch, 5887! 5888. By the 
River Chitanda below Goudkopje, 3600 ft., Baum, 140! Malange, Gossweiler, 1090 ! 
1093! Teusez, 297. 
10. C. Welwitschii, Hngl. in Engl. Jahrb. xxiii. 501. Closely 
allied to C. Schweinfurthit, but the plant is scarcely 6 in. high, and the 
leaves, except 1~3 pairs of small upper ones, are in a crowded rosette at 
the base. Inflorescence and flowers as in that species.—Hiern in Cat. 
Afr. Pl. Welw. i. 762. 
Lower Guinea. Angola: Huilla; in damp pastures and frequently in 
neglected flooded fields, Welwitsch, 5775! 
1l. C, crassifolium, Hngl. in Engl. Jahrb. xxiii. 500, t. 8, figs. 
A—F, A sparingly pubescent perennial 4—6 in. high; stem rather 
stout and woody, more or less branched ; branches ascending, woody at 
the base and sometimes root-bearing. Leaves opposite, crowded or 
distant, oblong-lanceolate, 3-6 lin. long, about 1} lin. broad, obtuse, 
entire or slightly toothed. Inflorescence terminal, subcapitate ; 
peduncles slender, 1-2 in. long; bracts ovate or obovate, slightly longer 
than the calyx, rather obtuse, sometimes faintly toothed at the apex ; 
flowers sessile. Calyx 2} lin. long, pilose outside, 5-angled, membranous 
between the angles ; teeth ? lin. long, pale green and thickened in the 
middle and at the tips. Corolla white with purple stripes on the lips, 
minutely puberulous outside; tube 2 lin. long; upper lip 1} lin. long, 
ciliate; lower lip 1f lin. long, about 2} lin. broad; lobes denticulate.— 
Hiern in Cat. Afr. Pl. Welw. i. 761. 
Lower Guinea. Angola: Pungo Andongo; in the Presidium at Santo 
Antonio, Welwitsch, 5869! between Candumba and Lombe, and between Bumba and 
the cataract of the River Cuanza near Condo, Welwitsch, 5870! Huilla; various 
localities, Welwitsch, 5790! 5791! 5792! 5794! Antunes, 193. Humpata, 
Newton, 166. 
12. C, latibracteatum, Skan. An erect herb up to 18 in. high 
or more; stems quadrangular, furrowed, branched, slender, rather 
densely pilose at the base, glabrescent above ; branches very slender, 
erect or ascending, up to 1 ft. long or more, very sparingly leafy ; inter- 
nodes 14-4 in. long. Leaves opposite, sessile ; lower leaves elliptic or 
oblong, about 6 lin. long and 3-4 lin. broad, entire, subcoriaceous, obtuse, 
glabrous or sparingly ciliate on the margins at the base and on the 
underside of the midrib; upper leaves lanceolate or linear, 3-7 lin, 
long, 4-1 lin. broad, becoming smaller from below upwards. Inflores- 
cence terminal, capitate, on a slender peduncle 1-4 in. long; flowers 
2~5, sessile; bracts suborbicular to ovate, up to 34 lin. long and 3 lin. 
broad, acute or obtuse and rounded, coriaceous, ciliate. Calyx almost 
campanulate, 24 lin. long, 1} lin. broad at the top, covered with long 
