20 xcviii. ACANTHACEiE (btjrkill). [Thunhergia . 



30. T. cjrnanchifolia, Benth. in Hook. Niger Flora^ 475. Stem 

 slender, climbing, pilose or glabrous. Leaves ovate, sagittate or 

 cordate, and with two angles near the base on each side, entire, or 

 almost so, mucronate at the apex, glabrous or sparingly hairy above, 

 7-nerved, reaching 3 in. in length and 1 J broad ; petiole 1 in. long. 

 Flowers on short peduncles J in. long; bracteoles 5-6 lin. long, 

 lanceolate, pilose, acuminate. Calyx short, with about 8 ovate, very 

 hairy teeth. Corolla-tube J in. long; lobes J in. long, white. Anthers 

 each with 2 spurs at the base, glabrous, mucronate above. Stigma 

 2-lipped ; the lips nearly equal, folded downwards so that the upper 

 envelopes the lower, broad and acutely angled, the upper slightly 

 retuse and mucronate, and also barbellate on the back, the lower 

 deeply bifid. Capsule 7 lin. long, pubescent ; seeds rugose. 



Upper Guinea. River Quorra (Niger), Vogel, 7 I Niger DeltH ; Nun River, 

 Vogel, 58 ! Oameroons : Rio del Rej, Johnston I Batanga, in bosh, Bates*, 126 ! 



31. T. armipotenSy aS'. Moore in Jowrn. Bot. 1880, 195. Stem 

 moderately thin, decumbent, pilose. Leaves rather firm, lanceolate, 

 hastate or subcordate at the base, acute at the apex, 5-nerved, more 

 or less scabrid, upwards of 2 in. long and 7 lin. broad; petioles \ in. 

 long. Flowers on pilose peduncles IJ in. long; bracteoles ovate, at 

 flowering 8 lin. long, 4 lin. broad, scabrid- pilose outside. Calyx-lobes 

 short, deltoid. Corolla-tube 5 lin. long; lobes 2-3 lin. long, blue. 

 Anthers mucronate above, with a spur to each lobe below and slightly 

 hairy. Stigma with 2 equal lips, which are rounded above and acutely 

 angled at the sides. Capsule J in. long. Seeds papillose. — EngL 

 Hochgebirgsfl. Trop. Afr. 387. 



Ziower Guinea. Angola: Huilla; Empalanca, in bush, Welwitsch, 50261 

 Lopolla, Welwitsch, 5027 I 



32. T. fragrans, Boxh. Coram. PL i. 47, t. 67. Stem slender,, 

 climbing, sparingly hairy. Leaves ovate, cordate or rounded at the 

 base, acute or acuminate above, hairy when young, 2-3 in. long, 

 |-H in. broad; petiole J-lJ in. long. Flowers on peduncles 1-3 in. 

 long ; bracteoles falcate-oblong, somewhat acute, hairy. Calyx-teeth 

 rather short, nearly glabrous. Corolla-tube |-1J in. long; lobes white. 

 Anthers acute above, sagittate but without spurs, glabrous. Stigma 

 with two equal lips. Capsule puberulous (often glabrous in Indian 

 specimens), f-1 in. long. Seeds rugose. — Bot. Mag. t. 1881 ; Nees in DC. 

 Prod. xi. 57. T. Icevis, Nees in Wall. PI. As. Rar. iii.77 : Nees in DC. 

 Prod. xi. 56. T.frago'an^-var. Icevis, C. B. Clarke in Fl. Brit. Ind. iv. 391. 

 7\ javanica, Gsertn. f . Fruct. iii. 1. 183 ; Nees in DC. Prod. xi. 56. T.scan- 

 dens, Pers. Syn. ii. 179. T.volubilis, Pers. Syn. ii. 179 ; Nees in DC. Prod. 

 xi. 59. T. angustifolia, Ham. ex Nees in Wall. PI. As. Rar. iii. 78 ; 

 Nees in DC. Prod. xi. 56. T. Roxhurghia, Nees in Wall. PI. As. Eur. 

 iii. 78 ; Nees in DC. Prod, xi, 58. T. subsagittata, Blanco, Fl. Fil. 518. 

 T. arnhemica, F. Muell. Frag. Phyt. Austr. ix. 73. Meyenia longijloiay 

 Benth. ex Hohenack. in Flora, 1849, 558. 



Upper Guinea. Sierra Iveone : near Regenf, Scott-Elliot, 4141b. 



