IJopairmm.] xcn. scrophulariace^e (hemsley and skan). 327 



Pedicels 10 lin. long. Sepals membranous, 1J lin. long, obtusely 

 apiculate, obscurely 3-nerved. Corolla-tube 1\ lin. long, 1-1J lin. 

 broad, glabrous, cylindric, purple. Filaments 1-1^ lin. long, inserted 

 below the middle of the corolla-tube ; anthers oblong. Style about 1 \ 

 lin. long ; stigma broadly bilamellate. Capsule 2 lin. long, \\ lin. 

 broad, obscurely punctate. 



Upper Guinea. Sierra Leone : Buyabuya (Bavabaya), on tbe Scarcies Biver, 

 700 ft., Scott-Elliot, 4275 ! 



9. D. angolense, Skan. Stems rather stout, 5-6 in. long, once 

 branched. Radical leaves 5-7 lin. long, about 1 lin. broad, linear- 

 oblong, acute ; cauline leaves scale-like, membranous, 2J-3 lin. long, 

 ovate, acute, connate at the base. Flowers axillary, solitary ; pedicels 

 2-3 in. long, rather stout. Calyx membranous, 3| lin. long, glabrous ; 

 teeth 1-1 ;j lin. long, obtuse. Corolla blue with yellow on the base of 

 the lower lip ; tube 4J lin. long, subinfundibuliform ; limb (imperfect) 

 10 lin. broad ; lobes rather coarsely dentate. Style 2 lin. long. 

 Anthers coherent, ciliate. 



Lower Guinea. Angola : very common in the Bio Balanca, Newton! 



25. ARTA3STEMA, Don ; Benth. et Hook. f. Gen. PL ii. 953. 



Calyx 5-partite ; segments herbaceous, acuminate, broad at the base, 

 very much imbricated. Corolla-tube elongated, broad ; upper outside 

 lip erect, broad, emarginate ; lower spreading, 3-fid. Perfect stamens 4, 

 didynamous ; posticous pair included ; filaments short, filiform ; anticous 

 pair affixed below the throat ; filaments long, arched, with a broad 

 appendage at the base of each, connivent at the apex under the upper 

 lip ; anthers approximate or coherent in pairs ; cells confluent at the 

 apex. Style bilamellate at the apex. Ovules numerous. Capsule 

 globose, septicidal ; valves entire, submembranous. Seeds foveolate- 

 rugose. — Erect herbs scabrid on the angles of the stem and on the 

 upper side of the leaves. Leaves opposite, quite entire or serrate. 

 Flowers rather large in terminal bracteate racemose inflorescences ; 

 pedicels ebracteolate. 



Species 4, the others in Tropical Asia and Australia. 



1. A. sesamoid.es, Benth. Scroph. hid. 39. A stout erect 

 sparingly branched herb 1^-3 ft. high, somewhat scabrid on the 

 angles of the stem and on the leaves; stem quadrangular. Leaves 

 2-5 in. long, \-^-\ in. broad, lanceolate or oblong-lanceolate, more 

 or less serrate, acute or acuminate, petiolate or the upper some- 

 times subsessile. Raceme 2-5 in. long ; bracts 2-5 lin. long, ovate 

 to lanceolate, acute or acuminate ; pedicels 2-5 lin. long. Calyx 3f~ 4A 

 lin. long, usually minutely and scabridly hairy. Corolla lilac-violet or 

 dark purple, 10-14 lin. long, minutely pubescent. Anthers coherent 

 in pairs. Capsule globose, about 5 lin. in diam. — DC. Prodr. x. 408 ; 

 Hook. f. Fl. Brit. Ind. iv. 274 ; De Wild. & Durand, Contrib. Fl. 



