Barleria.| ACANTHACER (Clarke). 47 
Lindau in Engl. Jahrb. xviii. 63, t. 1, Jig. 29, and in Engl. & 
Prantl, Pflanzenfam. iv. 3B, 814, jig. 105, C, Jig. 106, B, and fig. 
125, E. B. Hystrie, Linn. Mant. 89. B. prionitoides, Engl. in 
Engl. Jahrb. x. 262. 
Katanart Recion : Transvaal; Inkumpi River, Ne/son, 370! Olifants River, 
Nelson, 400! 
Also in Tropical Africa and Asia. This plant is often cultivated, and spreads 
as a weed, 
2. B. Holubii (C. B. Clarke); branchlets retrorsely hairy; 
internodes } in. long, obovate, suddenly acuminate into a spine, 
rigid, glabrate ; interpetiolar spines 1-2 in. long, simple, rigid ; 
calyx-segments lanceolate, spine-tipped, without marginal teeth ; 
corolla-tube 3 in. long, linear-cylindric, not dilated in the upper 
part ; limb of 5 subequal rounded segments 2 in, long. 
KaLanari Region: Transvaal; Marico District, Holub ! 
3. B. pungens (Linn. f. Suppl. 290); harsh, prickly ; branches 
4-18 in, long, hispid towards the tips; leaves 3-1 in. long, sub- 
sessile, ovate, acute, spine-tipped, mostly rounded at the base, hispid 
beneath at least on the nerve, margin not (vr most obseurely) spine- 
toothed ; racemes 8-1-flowered, axillary ; outermust bracts (or 
axillary spines) mostly dilated, pinnatifid toothed near the hase ; 
posticous sepal ovate, up to § by } in., spine-tipped, papery, veined, 
with spinous teeth on the margin ; corolla blue; tube 2-1 in. long ; 
capsule 3-2 by 2 in., ellipsoid, flattened, glabrescent, 4-seeded. 
Nees in Linnea, xv. 358, and in DC. Prod. xi. 236 (excluding 
var. macrophylla); T. Anders. in Journ. Linn, Soe. vii. 28; 
Lindau in Engl. § Prantl, Pflanzenfam. 3B, 314, not of Thunb. B. 
” pungens, 8 only, E. Meyer in Dréye, Zwei Pflanzengeogr. Documente, 
138, 168. Crabbea pungens, Harv. Gen. South Afr. Pl. 276. Acan- 
thus procumbens, Willd. ex Nees in DC. Prod. xi. 236. 
Coast Recion: Riversdale Div.; between Zoetemelks River and Little Vet 
River, Burchell, 6550! Mossel Bay Div.; Little Brak River, Burchell, 6192! 
Humansdorp Div. ; Gamtoos River, Niven, 22! Uitenhage Div. ; between 
Uitenhage and the Drostdy Farm, Burchel/, 4453! and without precise locality, 
Masson, 45! Bowie, 7! Tredgold, 35! Port Elizabeth Div.; Algoa Bay, Cooper, 
3038! near Port Elizabeth, Forbes! Alexandria Div.: Sam Tees Flats near 
Enon, Baur, 1093! A!bany Div.; near Grahamsiown, MacOwan ! Bowie, 7! 8! 
Bothas Berg, Baur, 1093! i 2 : 
CentTraL Recion: Somerset Div.; between Little Fish River and Great Fish 
River, 2000-3000 ft., Drége! near Somerset, Bowker, 212! Albany Div.; be- 
tween Zwartwarter Poort and ‘‘Soutars Post” (Fish River Rand), Burchell, 
3445! at Kurukuru River, Burchell, 3517! 
4. B. irritans (Nees in Linnea, xv. 359) ; branches nearly glabrous 
or pubescent towards the tips; leaves ovate, more or less lan- 
ceolate, acuminate, margins sinuate white-cartilaginous thickened, 
more or less spine-toothed ; posticous sepal 3-3 by 4-4 in, elliptic- 
lanceolate ; otherwise as B. pungens. Nees in DC. Prod. (xi. 236, 
incl. var. B; Sonder in Linnea, xxiii, 92; T. Anders, in Journ. 
