148 XCVIII. ACANTHACEH (CLARKE). [ Barleria. 
shoots often with 2 pairs of decussate reduced leaves. Floral leaves 
linear, 2 by 3, in.; bracts } in. long, subulate, not rigid. Calyx- 
segments ;/, in. in diam., ovate; posticous segment including the 
spinous tip } in. long. Corolla 1 in. long, or rather more, yellow (°), 
2-lipped ; tube } in. long; posticous lip of 4 segments connate for 4 in. 
Capsule (immature) very small.—B. setigera, var. pumila, Rendle in 
Journ. Bot. 1896, 396. B. linearifolia, Rendle in Journ. Bot. 1896, 397. 
Wile Land. Abyssinia: Ankober, Roth, 487! Somaliland: Turfa, Donaldson 
Smith! Harar, Robecchi, 10! Milmil, Riva ! 
ll. B. setigera, Rendle in Journ. Bot. 1896, 395, exclud. var. p. 
Nearly glabrous, Stems much-branched, 1-2 ft. high. Leaves up to 
14 by 4 in., subobtuse, mucronate; petiole hardly any ; interpetiolar 
spines }-} in. long, straight, slender, often 4 together. Inflorescence 
mainly in loose terminal panicles 1-34 in. long; lateral racemes 
developed, 1—2-flowered ; sterile bracts 1 by 3, in., almost foliaceous; 
fertile bracts $-3 in. long, linear, flat, hardly spine-like. Calyx as of 
B. Prionitis. Corolla nearly 1 in. long, rather slender, narrowly funnel- 
shaped upwards, but slit down on one side. 
Nile Land. Somaliland: Darar, Donaldson Smith! : 
Var. (?) brevispina, C. B. Clarke; leaves larger, up to 4 by 23 in., often 
acuminate ; spines less than 2 in. long, curved, deflexed, rather stout, red; corolla 
exceeding 1 in. long in R. Brown’s example, sometimes 12 in. long.—B. brevispina, 
R. Br. in Salt, Abyss. Append. 64 (name only). 
Nile Land. Abyssinia, Salt! British East Africa: Mombasa, Hildebrandt, 
20028 ! 
Mozamb. Dist. German East Africa: Usaramo; Dar-es-Salaam, Hilde- 
brandt, 1223! Stuhlmann, 471! Kirk, 12! Usambara ; Pangani, Volzens, 482! 
12. B. waggana, Rendle in Journ. Bot. 1897, 377. Long-hairy, 
very woody, branched undershrub. Leaves 1 by 3 in., elliptic, obtuse, 
narrowed to the base, hairy, soft; interpetiolar spines }-% in. long, 
needle-like, white, glabrous, 2 or 4 together. Inflorescences in terminal 
dense heads 1-14 in. long; sterile and fertile bracts very numerous, 
3-1 by 4, in., flat, green, soft with long white simple hairs, so that the 
heads appear feathered. Calyx 4-2 in. long; segments 4, consisting of 
a lamina hardly } in. in diam., terminating in a plumose bristle. 
Corolla # in. long. Capsule } in. long, rostrate. 
Nile Land. Somaliland: Golis Range and Waggar Mountains, Mrs. Lort- 
Phillips ! : 
13. B. triacantha, Nees in DC. Prod. xi. 240. Small harsh shrub ; 
nodes of branches short, minutely and densely hairy. Leaves $ by 4 in., 
obovate, subsessile, obtuse with a mucro, when young densely hairy, 
when mature with scattered hairs on the faces. Fertile bracts 4-} 1- 
long ; spines, some simple, many with 1 or 2 lateral spines on each side ; 
flowers all apparently solitary, axillary. Posticous calyx-segment 
