446 XCII. SCROPHULARIACE/E (iIEMSLEY AND SKAN). [Sopubia. 



XX Plant tomentose or woolly. 



Calyx-teeth deltoid, acute. 



Leaves lanceolate or elliptic-linear, floral 

 ones only 3-5 lin. long, l^-H lin. 

 broad ...... 13. -S'. argentea. 



Leaves narrowly linear, floral ones 6-12 lin. 



long, J-f-- lin. broad .... 14. S. angolensis. 



Calyx-teetli oblong or ovate-oblong, very 

 obtuse. 

 Leaves linear-lanceolate; calyx 2|- lin. 



long; teeth oblong, 1 lin. long . . 15. S. JSenii. 

 Leaves narrowly linear; calyx scarcely 

 11 lin. long ; teeth ovate-oblong, 

 scarcely f- lin. long .... 16. S. leprosa. 



Calyx-teeth linear or linear-triangular. 



Flowers distinctly pedicellate, not crowded 

 (western species), 

 Calyx-teeth 2|-2f lin. long ; corolla 7- 

 8 lin. in diam. ; style 5|-5f lin. 

 long ...... 17. S. Lanata. 



Calyx-teeth li lin. long ; corolla 4|-5 lin. 



in diam. ; style 3 5- lin. long .. . 18. S. Monteiroi. 



Flowers sessile or subsessile, crowded 

 (eastern species). 

 Flowers in very dense spikes 1-3 in. 



long; corolla 65— 7 lin. in diam. . 19. S. densiflora. 

 Flowers in narrower slightly interrupted 

 spikes up to 4|- in. long; corolla 

 5i lin. in diam. .... 20. S. Carsoni. 



-;■■■-:■- Flowers in short very dense spikes ; stem and leaves 

 not densely tomentose or woolly, but merely 

 scabrid or glabrescent. 

 Leaves all entire ; calyx very densely woolly . 21. S. conferta. 



Leaves usually trifid ; calyx not woolly . . 22. S. ugandensis. 



1. S. trifida, Buch.-Ram. ex D. Don, Prodr. Fl. J\ T ep. 88. A scabrid 

 erect more or less branched usually slender herb 1-2 ft. high ; stems 

 obscurely angled, puberulous (the hairs mostly in rows alternating with 

 the insertions of the leaves) ; interned es usually 4-1 in. long; branches 

 erect-spreading. Leaves mostly trifid below and entire and linear 

 above, often opposite and with very short leafy branches in their axils, 

 |— 1 in. long ; segments narrowly linear or subulate, acute, scabrid, 

 revolute. Flowers opposite or sometimes alternate or in whorls of 3 

 in loose terminal racemes. Pedicels usually \-\ in. long, slender; 

 bracteoles narrowly linear or linear-oblanceolate, 1|-1 4 lin. long. Calyx 

 2-24 lin. long, puberulous and scabrid outside ; teeth deltoid or ovate, 

 1-1 lin. long, tomentose chiefly on the margin. Corolla 3-3| lin. long, 

 44-6 lin. in diam., yellow with a purple centre, or altogether purple ; 

 lobes suborbicular, lf-2 lin. in diam. Perfect anther-cells oblong, 

 f-1 lin. long. Style about 24; lin. long, minutely puberulous. Capsule 

 subglobose or shortly oblong, If- 2 lin. long, \\ lin. broad, very slightly 

 emarginate, minutely apiculate, glabrous. Seeds \ lin. long, flattened, 

 truncate at both ends.— Benth. in DC. Prodr. x. 522 ; Engl, in Engl. 



