Thicnbergia] xciv. ACANTHACEiE. 803f 



The minute structure of this, as well as of the next species, shows 

 medullary xylem-islands and a woody cylinder which after a time is 

 broken up just as occurs in the genus Mendoncia. See Journ. Bot. 

 xxxii. p. 219 (1894). 



3. T. alata Bojer ex Sims, Bot. Mag. t. 2591 (1825) ; Hook 

 Exot. Fl. t. 177 (1827); Burkill, I.e., p. 16. 



Sierra Leone. — A climbing herb ; leaves H in. long ; petiole as 

 long, often winged ; corolla sulphur-orange in colour, blackish purple 

 at the bottom ; capsule, including the beak, nearly an inch long. By 

 fences and in bushy places near Freetown, not common ; fl. and fr.. 

 Sept. 1853. No. 5207. 



4. T. Cycnium S. Moore, I.e., p. 194 ; Burkill, I.e., p. 17. 

 HuiLLA. — Flowers white. In bushy rocky places, flooded in the 



rainy season, near LopoUo ; fl. and unripe fr. Dec. 1859. No. 5009. 



The part of Mr. Moore's description, I.e., which relates to the 

 climbing and pendulous habit, is not applicable to this plant, and was 

 probably intended to belong to the description of T. affinis. 



5. T. armipotens S. Moore, I.e., p. 195 ; Burkill, I.e., p. 20. 

 HuiLLA. — In the Empalanca bushy pastures ; fl. and fr. Dec. 1859. 



No. 5026- Leaves hastate, rough ; flowers blue. At Lopollo ; fl. and 

 fr. April 1860. No. 5027- 



6. T. sessilis Lindau ia Engl. Bot. Jahrb. xvii. p. 96 (9 May 

 1893) ; Burkill, I.e., p. 21. 



HuiLLA. — Fruit compressed, lanceolate, glabrous, firmly coriaceous, 

 chestnut in colour, dehiscing laterally at the apex. In wooded pastures 

 flooded in summer, near Humpata ; only one specimen ; fr. April 1860. 

 No. 5044. 



7. T. lamellata Hiern, sp. n. 



T. (En-Thunbergia) sp. nov., S. Moore, I.e., p. 196. 



A nearly glabrous, erect herb, with the habit of a Petunia, 1 to 

 1^ ft. high, much branched from the base; rootstock thick, 

 perennial ; stems numerous, rather wiry, obtusely quadrangular, 

 furrowed ; branches opposite and alternate, ascending or strictly 

 erect, puberulous at the nodes ; leaves opposite, obovate-oblong, 

 linear-oblong or elongate-lanceolate, obtuse or emarginate or 

 subapiculate at the apex, a little narrowed to the sessile base^ 

 puberulous or subscabrid, rather fleshy, rigid, glaucous-green,, 

 more or less erect, pauci-veined, entire on the narrowly revolute 

 margin, 1^ to 3^ in. long by |^ to f in. broad; flowers large, 

 white ; fruiting peduncles solitary in the upper axils, |^ to i inch 

 long, rather thick ; bracteoles lanceolate-oblong, 5- to 7-nerved, 

 rather obtusely pointed at the apex, puberulous, 1 to li in. long ; 

 fruiting calyx J to f in. long; the segments 12 to 15, rigid, 

 subulate ; capsule |^ to 1 in. long, the lower part subglobose, 

 § to ^ in. diameter, the upper part (or beak) oblong, \- to \ in. 

 broad ; seeds ^ to | in. long, covered with imbricate adpressed 

 lamellae. 



HuiLLA. — In hilly rocky places among tall bushes between the lake 

 of Ivantala and Quilengues ; fr. end of Feb. 1860. No. 5062. In 

 thickets near Lopollo and at the Hippopotamus lake (Ivantala) ; fr. 



