Ilysanthes.] xcn. scrophulariace,e (hemsley and skan). 347 



3; I. conferta, Hiern in Dyer, Fl. Gap. iv. ii. 3G5. A glabrous 

 or nearly glabrous aquatic herb ; stems erect, 4-8 in. long, rather 

 slender, usually simple, tetragonal at least above, submerged below, 

 naked except at the apex through the fall of the lower leaves, rooting 

 at the base. Leaves opposite, crowded at and near the apex of the 

 stem, shortly petiolate or sessile and slightly sheathing, oblong-obovate, 

 2-8 lin. long, 1-3 lin. broad, very obtuse, entire, somewhat fleshy- 

 coriaceous, green or reel-purple, glossy and minutely dotted above, 

 minutely glandular beneath. Flowers axillary, solitary ; peduncles 

 about 3 lin. long. Calyx li-l-| lin. long, deeply lobed ; segments ovate 

 or broadly oblong, rather more than \ lin. broad, unequal in breadth, 

 imbricate, obtuse. Corolla crimson ; tube 2| lin. long, l£ lin. broad at 

 the base, If lin. broad near the limb ; upper lip deltoid-ovate, entire, 2 

 lin. long ; lower lip deeply 8-lobed, about 4 lin. long. Upper stamens 

 shortly exserted ; staminodes simple, incurved, 1 lin. long. Capsule 

 oblong-ovoid, compressed, H- 2\ lin. long, \\ lin. broad, crowned by 

 the rather thick persistent style. — /. Plantaginella, S. Moore in Journ. 

 Bot. 1005,49. 



Mozamb. Dist. Rhodesia : Matoppo Hills, in streams running over granite, 

 Ei/les, 47 ! 



Also in the Transvaal and Natal. 



4. I. Welwitschii, Engl, in Engl. Jahrb. xxiii. 504, /. 9, figs. 

 — E. An erect herb 1^-2 in. high, bearing a tuft of long fibrous roots ; 

 stem scapose, simple, very slender, purple, minutely pubescent. Leaves 

 in a small tuft at the base of the stem, linear-spathulate, 2|- 5 lin. long, 

 ■|-1 lin. broad, fleshy, obtuse. Flowers solitary and terminal or in 1-4 

 pairs with an odd terminal one ; bi-acts lanceolate or ovate-lanceolate, 

 1 lin. long ; peduncles slender, 4 lin. long. Calyx 2\ lin. long, purplish ; 

 teeth | lin. long, oblong, obtuse. Corolla about 4^ lin. long, whitish, 

 the lower lip purplish ; upper lip slightly emarginate ; lower lip 

 bearded in the middle ; lobes crisped. Staminodes rather large, gib- 

 bous, obovoid. Capsule (immature) elliptic, acute, slightly longer than 

 the calyx. — Hiern in Cat. Afr. PI. Welw. i. 764. 



Lower Guinea. Angola : Huilla ; in very elevated damp places in Morro de 

 Lopollo, Welwitsch, 5781 ! 



5. I. nana, Engl, in Engl. Jahrb. xxiii. 505. An erect somewhat 

 tufted herb 1^-1^ in. high ; stems quadrangular, minutely pubescent, 

 rather leafy. Leaves somewhat fleshy, glabrous, the lower spathulate, 

 4-5 lin. long, 2-2| lin. broad, petiolate, the upper sessile, ovate, up to 

 G lin. long and 4 lin. broad, all obtuse, distinctly or obscurely toothed. 

 Peduncles ^-1 lin. long, in the axils of the upper leaves. Calyx about 

 1 h lin. long ; teeth ovate-lanceolate, f lin. long, acute. Corolla about 

 2h lin. long, purple or white, with the lower lip purplish ; lobes denticu- 

 late. Staminodes gibbous, bearing a slender filament about A lin. long. 

 Capsule fusiform, about 3 lin. long, acuminate. — Hiern in Cat. Afr. PI. 

 "VVelw. i. 764, and in Dyer, Fl. Cap. iv. ii. 365. 



