Gerardiina.| XCII. SCROPHULARIACEH (HEMSLEY AND SKAN). 373 
39, GERARDIINA, Engl. in Engl. Jahrb. xxiii. 507, t. 10, G—M. 
Calyx campanulate, almost equally 5-toothed ; teeth shorter than 
the tube, valvate. Corolla obliquely campanulate, slightly 2-lipped ; 
lobes rounded, spreading or recurved; lowermost largest, the two 
upper inside in bud. Stamens 4, included and attached near the 
base of the corolla-tube, the anterior pair nearly twice as long as 
the posterior ; filaments of the longer ones bearded above the middle ; 
anther-cells nearly equal, divergent. Style glabrous, thickened and 
recurved near the apex, slightly exserted. Ovules very numerous. 
Capsule ovoid, equalling the calyx, 2-celled, many-seeded. Seeds linear 
or linear-cuneiform.—An erect herb. Leaves opposite, undivided. 
Flowers showy in terminal racemes. 
A monotypic genus, also occurs in South Africa. 
1. G. angolensis, Zngl. in Engl. Jahrb. xxiii. 507, t.10,G—M. A 
perennial, hispid, erect herb. Stems rigid, straight, unbranched, 2-3 ft. 
high, terete or flattened in the upper part; internodes much shorter 
than the leaves. Leaves opposite, sessile, thick, rigid, hispid, especially 
on the upper surface and along the nerves, linear-lanceolate, 2—4 in. 
long ; lower ones rounded or obtuse ; upper acute, erect or adpressed to 
the stem, strongly 3-nerved. Racemes 4-6 in. long; pedicels very 
slender, slightly exceeding the bracts. Flowers purple-violet or violet- 
blue (Welwitsch), about 1 in. long and broad, solitary in the axils of 
Opposite, cordate, stem-clasping, usually 2-3 lin. long bracts. Calyx 
thickly minutely glandular-pitted, about } in.in diam. ; lobes deltoid or 
rounded. Corolla-tube hairy on the inside at the base of the upper lip ; 
lobes nearly semicircular, two upper smallest and about half as large as 
the lowermost.—Hiern in Cat: Afr. Pl. Welw. i. 770; and in Dyer, FI. 
Cap. iv. ii, 378; Engl. & Gilg in Baum, Kunene-Samb. Exped. 365. 
Lower Guinea. Angola: Huilla; by the Lopollo and Humpata streams, 
Welwitsch, 5846 ! by the River Longa, below Napalanka, 3800 ft., Baum, 582; 
Malange, Gossweiler, 1279! 
Mozamb, Dist. German East Africa: between Lake Tanganyika and Lake 
Rukwa, 6000 ft., Nutt! British Central Africa : Kambole, south-west of Lake 
Tanganyika, 5000 ft., Nutt / 
This has also been collected in the Transvaal, Rehmann, 5995. 
40. BUCHNERA, Linn.; Benth. et Hook. f. Gen. Pl. ii. 968. 
Calyx tubular, 10- (rarely 7- or 8~) nerved or ribbed, the nerves inte 
times very faint or quite obscured, 5- (more rarely 4-) toothed. bones 
tube slender, straight or slightly incurved ; limb spreading, subequally 
5-fid ; lobes usually flat, the 2 upper inside. — Stamens 4, reoahaaen ce 
included ; anthers l-celled, vertical, dorsifixed; connective usually 
mucronate at the apex. Style thickened or clavate above, ee 
at the entire or emarginate apex. Ovules numerous In each cell. 
Capsule oblong, ovoid or ovoid-oblong, loculicidal ; valves coriaceous, 
