lAghtfooiia.'] Lxxv. campanulace^ (hemsley). 477 



brous l^— 14 lines long. Capsule almost wholly inferior, hemispherical. 

 — Description after De CandoUe. 



liower Onlnea. Huilla, in marshy places which are inundated in the summer, 

 Welwitsch ! 



12. Zi. Welwltschll, A. DC. in Ann. Sc. Nat ser. 5, vi. p. 332. An 

 annual with slender ascending stems 4-8 in., as well as the leaves gla- 

 brous or with a few scattered hairs. Leaves alternate, distant, sessile, 

 linear or linear-lanceolate, acuminate, margin cartilaginous and re- 

 motely toothed, from 2-4 lines long. Peduncles and pedicels very 

 slender. Flowers terminating the branches and proceeding from the 

 axils of the upper ones on pedicels ^.to 2 lines long, of a livid yellow 

 colour. Calyx about 2 lines long ; tube very short and broad ; lobos 

 entire sparsely ciliate, furnished with .one or two hairs at the tip, 

 margin fleshy, entire. Corolla 5-partite, lobes not exceeding the calyx. 

 Ovary and capsule almost wholly superior. — Description after De 

 Candolle. 



Ijower Guinea. Pungo Andongo, in humid sylvan meadows, Wdwitsch ! 

 A very singular plant, at first sight very different from any Campanidacese, espe- 

 cially in the practically free ovary. 



5. WAHLENBERGIA, Schrad. ; Benth. et Hook, f . Gen. 

 PI. ii. p. 555. 



Calyx-tube adnate to the ovary ; limb 5-parted or very rarely with 

 only 3 or 4 lobes. Corolla campanulate funnel-shaped tubular or 

 almost rotate, slightly 5-lobed, or parted to the middle or sometimes 

 deeper, very rarely with only 3 or 4 lobes. Stamens free from the' 

 corolla ; filaments usually dilated at the base ; anthers free. Ovary 

 inferior or half-superior, 2-5-celled ; ovules numerous ; stigma nar- 

 rowly 2-5-fid. Capsule dehiscing loculicidally into as many valves as 

 there are cells, when there are 5 valves alternating with the calyx- 

 lobes. — Annual or perennial herbs of various habit, often woody at the 

 base. Leaves alternate or rarely opposite. Flowers usually some 

 shade of blue, variously arranged, nodding ; capsule erect. 



A genus of nearly 80 species, chiefly South African, a few occurring in Tropical 

 America and the Mediterranean region and one widely spread in Western Europe. 

 Perennials with ascending slender leafy stems, terminat- 

 ing in long naked few-flowered peduncles. 

 Capsule about 2 lines in length, half-superior, S-celled 1. W. arguta. 

 Capsule 5-7 lines long, wholly inferior, 2-celled. 



Nearly glabrous ; calyx-lobes linear-lanceobite . . 2. W. siknoides. 

 Conspicuously hispidly pilose ; calyx-lobes ovate- 

 lanceolate Z. W. Mayinii. 



Perennial with short naked stems bearing rosettes of 



leaves and almost sessile terminal flowers .... 4. fT. jmsilla. 

 Annuals rarely exceeding 6 in. high. 

 Perfect stamens 3 or 4. 



Leaves oblong or obovate-oblong 5. W. huillana. 



Leaves linear-lanceolate Q. W. Cervicina. 



Perfect stamens 5. 



Leaves linear-lanceolate or subulate 1. W. hwnilis. 



