Thunbergia.] xcviii. acanthace^ (burkill). 23 



with a few large teeth on the margin, more or less strigose on 

 both surfaces; petiole pubescent with rust-brown hairs, about 1 in. 

 long. Flowers on peduncles about as long as the petioles; bracteoles 

 ovate, very acute, {)-nerved, the middle one forming a marked keel. 

 Calyx short, with a sinuate margin. Corolla large, purple above ; tube 

 IJ m. long; lobes J in. long, truncated. Anthers mucronate, glabrous, 

 those of the ventral pair of stamens each with a single hook. Stigma 

 triangular, the lateral angles barbellate, dorsal lobe rounded, anterior 

 side truncated with a small mucro. Capsule 1 in. long, velvety 

 outside, 



nSozamb. Blst. British Central Africa : Njasaland ; Shire Highlands, at Mudi, 

 Scott-ElUut, 8563 1 and without precise locality, Buchanan, 263 ! 1092 ! 1339 1 



41. T. xnellinocaulis, Burkill. Stem covered with yellowish hairs, 

 becoming glabrous when old, sulcate when dry. Leaves ovate-subcordate, 

 occasionally with one small tooth on the margin at each side near the 

 base, acute or shortly acuminate, pubescent below with yellowish hairs, 

 less so above, 3 in. long, 2 in. broad ; petiole \ in. long or less, densely 

 pubescent. Flowers on slender, almost glabrous, peduncles, attaining 

 1 J in. in length ; bracteoles ovate, obtuse or subacute, somewhat pubes- 

 cent. Calyx short with a sinuate margin, very slightly hairy. Corolla- 

 tube 1 J in. long, glandular outside ; lobes rounded, paler in colour than 

 those of T. mollis. Anthers mucronate, with a tuft of hairs at the base 

 of each lobe, one anther lobe only of the lower pair spurred at the base. 

 Stigma triangular, the lateral angle barbellate. 



Mozamb. Bist. British Centra Africa : Nyasaland ; Mount Zomba, 4000- 

 6000 ft., Whyte! 



Closely allied to the preceding species. 



42. T. petersiana, Lindau in Engl. Jahrh. xvii. 81). Stem 

 thin, w4th scattered hairs, climbing. Leaves on petioles upwards of 

 2 in. long, cordate or rarely subcordate, long acuminate, with a few 

 large teeth on the margin, 3 in. long, 2J in. broad, pilose on both sides. 

 Flowers on peduncles about 1 in. long ; bracts ovate-lanceolate, acute, 

 hairy, 3-nerved and 3-keeled, reticulated. Calyx very short, truncate 

 or slightly toothed. Corolla large; tube wide, 1 in. long; lips 5 lin. 

 long, violet. Anthers spurred at the apex and also at the base of each 

 lobe with long spurs, not bearded. Stigma funnel-shaped, triangular 

 barbellate. — T. chrysops, Klotzsch (not of Hook.) in Peters' Mossamb. 

 196. 



Mozamb. Dlst. Portuguese East Africa : Lower Zambesi ; Boror, Petcrg. 



43. T. usambarica, Lindau in Engl. Jahrh. xvii. 89. Stem thin, 

 almost glabrous, except at the nodes. Leaves ovate-cordate, acuminate, 

 entire or almost so, with scattered white hairs on both sides, 3 in. 

 long, 2 broad ; petiole up to 1) lin. in length. Flowers solitary on 

 peduncles about IJ in. long; bracteoles broadly lanceolate, 7 lin. long, 

 reticulated, with white glandular hairs. Calyx very small, irregularly 

 toothed. Corolla-tube broad, nearly 1 in. long; lobes blue, small. 



