4rerardiina.~\ xcn. scROPHULAMA.cEiE (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, Engl, in Engl. Jahrb. xxiii. 507, t. 10, G — M. A 

 perennial, hispid, erect hei'b. 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 adpressecl to 

 the stem, strongly 3-nerved. Racemes 4-6 in. long; pedicels very 

 slender, slightly exceeding the bracts. Flowers purple-violet or violet- 

 blue (Wehoitsch), about 1 in. long and broad, solitary in the axils of 

 opposite, cordate, stem-clasping, usually 2-3 iin. long bracts. Calyx 

 thickly minutely glandular-pitted, about J- 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. PI. Welw. i. 770 ; and in Dyer, Fl. 

 Cap. iv. ii, 378 ; Engl. & Gilg in Baum, Kunene-Samb. Exped. 365. 



Lower Guinea. Angola : Huilla ; by the Lopollo and Hmnpata streams, 

 Welwitsch, 58 46 ! by the River Longa, below "Napalanka, 3800 ft., Baum, 582 ; 

 Malange, Gossweiler, 1279 ! 



Mozamb. X>ist. German East Africa : between Lake Tanganyika and Lake 

 Etukwa, 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. ; Eenth. et Hook. f. Gen. PL ii. 968. 



Calyx tubular, 10- (rarely 7- or 8-) nerved or ribbed, the nerves some- 

 times very faint or quite obscured, 5- (more rarely 4-) toothed. Corolla- 

 tube slender, straight or slightly incurved ; limb spreading, subequally 

 .5-fid ; lobes usually flat, the 2 upper inside. Stamens 4, didynamous, 

 included ; anthers 1-celled, vertical, dorsifixed ; connective usually 

 mucronate at the apex. Style thickened or clavate above, stigmatose 

 at the entire or emarginate apex. Ovules numerous in each cell. 

 Capsule oblong, ovoid or ovoid-oblong, loculicidal ; valves coriaceous, 



