Adhatoda.} ACANTHACES (Clarke). 77 
Eastern ReGion : Griqualand East; mountains aronnd Clydesdale, 3500 ft., _ 
Tyson, 2063! Pondoland; without precise locality, Bachmann, 1273! Natal ; 
stony fields near Durban, Wood in MacOwan, Herb. Aust.-Afr., 1512! 
This species is closely allied to A. natalensis. Lindau calls this a Duvernoia, 
while he keeps A. natalensis in Justicia, on account of differences in the 
pollen only ; but I see no difference in the pollen, 
3. A Duvernoia (C. B. Clarke); a stout minutely pubescent 
shrub, attaining 8 ft. high; leaves often 7 by 8 in., base attenuate ; 
petioles 1-1 in. long; infloreseence a compound terminal panicle; 
lower peduncles often 2-4 in. long with a compound spike 2-4 by 
1; in. at their tops ; floral leaves conspicuous, numerous, 2 by 2 in. ; 
flower bract + by ~; in.; bracteoles 1 by }; in.; calyx 3 in. long, 
when mature divided half-way down into 5 triangular lobes, nearly 
glabrous ; corolla 1 in. long; tube short, broad ; posticous subentire 
lip arched, throat within densely hairy ; anther-cells at nearly equal 
height, 1 obscurely mucronate at the base; pollen ellipsoid, banded 
longitudinally, without tubercles; ovary densely shaggy ; capsule 
1; by 1-4 in., oblong-clavate, very stout, 4-seeded, grey-pubescent ; 
seeds 1-1 in, in diam., very flat, tubercular-scabrous, Duvernoia 
adhatodioides, FE. Meyer in Drége, Zwei Pflanzengeogr. Documente, 
150, 180; Nees in DC. Prod. xi. 323; T. Anders. in Journ. Linn, 
Soe. vii. 37; Lindau in Engl. & Prantl, Pflanzenfam. iv. 3B, 336, 
339, fig. 135, F. 
Eastern Reoion: Transkei, MacOwan, 2001! Kaffraria; Kreilis Country, 
Bowker! mountains of Kaffraria, Mrs. Barber! Pondoland; St. Johns River, 
below 1000 ft., Drége/ in open woods near the confluence of the Tsitza and 
Umzimvnbu Rivers, 1000 ft., Bawr in MacOwan & Bolus, Herb. Norm. Aust.- 
Afr., 558! Natal; Tongaat, Cooper, 3031! Noodsberg, Wood, 981! and without 
precise locality, Gerrard, 264! 
Imperfectly known Species. 
4. Duvernoia tenuis (Lindau in Engl. Jahrb. xx. 44) ; a shrub 
5-10 ft. high, with glabrous branches ; leaves 5 by 2 in., narrowed 
at either end, hairy on the nerves; petioles } in. long or more; 
inflorescence very loosely paniculate, of few flowers; peduncles 
slender, bifariously hairy; bracts and bracteoles small ; calyx % in. 
long ; corolla green-yellow, smooth; tube } in. long; lip } in. long; 
one anther-cell lower than the other, mucronate at the base; pollen 
of Duvernoia. 
Eastern Region: Pondoland; in Egosa Bush, near Dorkin, Bachmann, 
1275! 
From the @escription this would appear to be something very remote from 
Duvernoia, with which it is placed on the character of the pollen. Might it be 
Justicia campylostemon, T. Anders. ? 
XXIV. RHINACANTHUS, Nees. 
Calyx small, divided nearly to the base ; segments 5, linear. 
Corolla 2-lipped ; tube linear, much longer than the lips; posticous 
lip oblong, subentire, erect or recurved. Stamens 2; anther-cells 2, 
one a very little below the other, not tailed but sometimes mucronate 
