- ACANTHACER (Clarke). [ Thunbergia. 
Between the original type of this. species collected by Drége and the extreme 
form megalantha, C. B. Clarke, there is a series, among which T. Jlavohirta, 
Lindan, is near Drage’s type. T. atriplicifolia, Lindau (in Engl. Jahrb. xvii. 
Beibl. 41, 36, 39), with the anther-cells not spurred at the base is either a new 
species or a form of T. capensis ; in the type example of Drége’s atriplicifolia 
(and in all the material above cited), several anther-cells (usually 6 or 4 in each 
flower) have at the base a linear curved strong smooth spur with a white hard 
point. This species is diagnosed here from T. aspera by the ovate (not elliptic. 
oblong) leaves ; the var. B differs from all the other material quite as much ag 
T. aspera does, but having ovate leaves is arranged here. 
10. T. aspera (Nees in DC. Prod. xi. 56); leaves 12 by 2 in, 
elliptie-oblong, green on both faces, often with a tooth at the lower 
angle, otherwise subentire, glabrate when mature ; anther-cells with 
few hairs except the basal tuft ; otherwise as typical 7. atriplicifolia, 
E. Mey. 1. atriplicifolia, T. Anders. in Journ. Linn. Soc. vii. 20 
partly. T, Bachmanni, Lindau in Engl. Jahrb. xvii. 94 partly. 
Var. B, parvifolia (Sonder in Linnea, xxiii. 90); more hispid; leaves very erect 
in all the dried material, subentire, upper surface brown, lower pale. 1’. capensis, 
near var, grandifiora, Nees ms. 
Coast Region: British Kaffraria (Caffer Land), Gill / 
Katanari ReGion: Var. 6: Transvaal ; Magaliesberg, Burke! Zeyher, 1418! 
Olifants Nek, Burke ! 
Eastern Re@ion: Pondoland, Bachmann, 1266 ! Natal; Coastland to 1000 ft., 
Sutherland ! 
The “ type ” is Gill’s example, above described. In this (and in all the plants here 
placed) the corolla has the tube 2 in. long, thelimb 1 in. in diam., and is yellow 
(Bolus) ; the spur at the base of the anther-cell is strong; so that T. aspera, 
Lindau (in Engl. Jabrb, xvii. Beibl. 41, 36, 39), is some remote species. Bach- 
mann, 1266, matches exactly so far as it goes ; the example at Kew, however, has 
no flowers. Sonder says that Zeyher, 1418, was typical T. aspera; and that the 
Olifants Nek plant was his var. parvifolia; but Olifants Nek is in the 
Magaliesberg, and the two appear identical. The plants, arranged below as 
T. Bachmanni, var. minor, differ from T. aspera, var. parvifolia by their large 
flowers, hardly otherwise. : 
11, T. xanthotricha (Lindau in Engl. Jahrb. xxiv. 311) ; leaves 
up to 1 by 3-4 in., elliptic-lanceolate, entire, hispid, base rounded ; 
petiole 0-2 in. long ; corolla-tube nearly 1 in. long; limb 12 in. in 
diam. ; otherwise nearly as 7’. aspera. 
Katanari ReGion: Transvaal: in grassy fields around Barberton, 2000- 
3000 ft., Galpin, 496! 
Flowers cream-coloured ( Galpin). Leaves smaller, widest very near the base ; 
otherwise not separable from T. Bachmanni, var. minor. The hairs are tawny- 
yellow in nearly all the present group. 
12, T, Bachmanni (Lindau in Engl. Jahrb. xvii. 94, and Beibl. 
41, 38, 41 partly); robust, leaves 22 by 1-12 in, elliptic-oblong 
(searcely ovate), entire ; otherwise as the large-flowered examples 
above called 7. atriplicifolia. 
Var. 8, minor (C. B. Clarke) ; leaves 14 by 3 in., elliptic, widest near the 
middle, markedly 3-5-nerved on the under surface at the base, frequently with : 
tooth near the base. » Trequently with a 
Katanart Reoion: Transvaal ; hill sides near Barberton, 3000 ft., Galpin, 
