Barleria.] XCVIII, ACANTHACEE (CLARKE), 145 
glabrous or with a few simple stiff erect white or fuscous hairs. Inter- 
petiolar spines }—? in. long, rigid, acicular, simple, 2 opposite or often 
3 or 4 (1 or 2 of the succeeding pair developed); bracts next the calyx 
similar to the spines, terete or somewhat trigonous at the base. Inflor- 
escence reduced nearly to a simple spike, short or long, frequently with 
solitary flowers in the lower distant axils, but sometimes with 2-flowered 
racemes. Posticous sepal } in. long, elliptic-lanceolate, acuminate, usually 
mucronate, glabrous or nearly so, erect in fruit; anticous segment 
sometimes quite entire (not distinctly 2-nerved), sometimes with 2 
lanceolate mucronate teeth one-sixth the length of the segment. Corolla 
yellow, 2-lipped; tube (cylindric part) hardly 4 in. long; posticous 
lip of 4 connate segments 2-1 in. long; anticous segment clawed, 
shorter, Filaments glabrous; pollen globose, honeycombed. Capsule 
3-2 in. long, ovoid-conic, beaked, 2-seeded.—Nees in DC. Prod. xi. 237; 
T. Anders. in Journ. Linn. Soc. vii. 28 (only as to non-African plants) ; 
S. Moore in Journ. Bot. 1880, 265; C. B. Clarke in Hook. f. Fl. Brit. 
Ind. iv. 482; Lindau in Enel. Jahrb. xviii. 63, t. 1, fig. 29, and in 
Engl. & Prantl, Pflanzenfam. iv. 3 B. 314, fig. 105 C, fig. 106 B, 
fig. 125 E, and in Engl. Pf. Ost-Afr.C. 369 partly. B.-Hystrix, Linn. 
Mant. 89, not of A. Rich. B. prionitoides, Engl. in Engl. Jahrb. 
x. 262; Rumph. Herb. Amb. vii. 22, t. 13. 
Nile Land. British East Africa: Ribe to Galla country, Wakefield! Tana 
River, Thomas, 16! 
Lower Guinea. Angola: Loanda, Welwitsch, 5067! 5138! 5190! Ambriz, 
Welwitsch, 5141! Monteiro ! Hereroland: Karribib, 3200 ft., Marloth, 1430! 
Mozamb. Dist. British Central Africa: Nyasaland; Blantyre, Buchanan ! 
Also in Tropical Asia. 
This plant is much cultivated, and spreads as a weed; the flowers vary from 
orange-yellow to cream-colour. The form called B. prionitoides differs by its long 
simple spikes, and is common in India. As to the synonymy, B, Hystria, Linn., is 
founded wholly on Rumph. Herb. Amb. vii, t. 13, a Malayan plant which can be no 
other than B. Prionitis, Linn., under which, moreover, the identical plate of Rumphius 
is quoted. The type example of B. Hystriz in Linneus’ own herbarium is exactly 
B, prionitoides, Engl. 
2. B. proxima, Lindau in Ann. Istit. Bot. Roma vi. [1896] d 2. 
Leaves oblong, 1 by 1 in., sparsely hairy. Interpetiolar spines 3 In. 
long; often 3 or 4. Filaments of fertile stamens minutely hairy. 
vary minutely hairy; otherwise as B. Prionitis. 
Nile Land. Somaliland: Ogaden Desert, Riva, 253, 299, 344, 366! 
_3. B. diacantha, Nees in DC. Prod. xi. 238 partly. Interpetiolar 
Spines up to #-1 in. long, often paired. Floral leaves obovate-lanceolate, 
Spihe-tipped, rigid. Posticous sepal 4 in. long, ovate, acuminate or 
spine-tipped ; otherwise as B. Prionitis——A. Rich. Tent. Fl. Abyss. i. 
144, not of Solms-Laub. B. Prionitis, T. Anders. in J ourn. Linn. Soc. vii. 
8 mainly. B. Marghilomane, Schweinf. et Volk. Liste Pl. d. Somalis, 
16, and in Ghika, Pays des Somalis, 216. 
VOL. v. " 
