Blepharis. | XCVIII. ACANTHACEH (CLARKE), 101 
17. B. Buchneri, Lindau in Engl. Jahrb. xx. 30. Hairy or 
ultimately glabrate, except the inflorescence. Stem-leaves in distant 
whorls of 4, whereof the 2 inner are 2-5 by 4-4 in., linear or oblong, 
entire or with very few obscure teeth, 2 outer reduced, 4-1 in. long, 
ovate, lobed, with spines 4-1 in. long. Inflorescence 1-14 in. in diam. ; 
flower-bract 3 in. long, spathulate-oblong, acute, more or less spinous 
towards the top; bracteoles 0. Calyx # in. long, 2 inmost segments 
linear-lanceolate, nearly as long as the others. Corolla 1 in. long, 
blue.—Lindau in Engl. & Prantl, Pflanzenfam. iv. 3 B. 318. B. acan- 
thodioides, 8. Moore in Journ. Bot. 1880, 229 partly, not of Klotzsch. 
Lower Guinea. Angola: Pungo Andongo, Welwitsch, 5061! 5080! 5096! 
5112! 5174! 5219! Mechow, 109! Malange, Buchner, 92! Caringa River, Wel- 
witsch, 5163! Cambo River, Mechow, 5474! 
South Central. Lunda: Lomani River, Pogge, 1217! 
Mozamb. Dist. British Central Africa: Nyasaland; Tanganyika Plateau, at 
Fort Hill, Whyte! 
_ 18. B.chrysotricha, Lindau in Engl. Jahrb. xx. 32. Branches and 
innovations white-hairy. Leaves in whorls of two very unequal pairs 
(Lindau), larger leaves 3 by 12 in., broad-elliptic, triangular at either 
end, mature scabrous, nearly glabrous, margin sparingly dentate ; petiole 
in. long. Spikes 14 by 1 in., on very short lateral branchlets, few- 
flowered, strobilate. Flower-bracts 3 by # in., obovate, obtuse, strongly 
3-nerved, nearly glabrous, with very long teeth. Posticous sepal 
1-1} In. long, elliptic-oblong, nearly glabrous. Hairs of the anthers 
golden-brown.—Lindau in Engl. & Prantl, Pflanzenfam. iv. 3 B. 318, 
and in Engl. Pl. Ost-Afr. C. 370. 
Mozamb. Dist. German East Africa: Usagara, Stuhlmann, 199! . 
The large leaf is detached, and the statement that the four leaves are in very 
unequal pairs cannot be verified. 
19. B. tetrasticha, Lindau in Engl. Jahrb. xx. 29. Branch 
16 in. long, undivided, terete, pubescent. Leaves (exactly decussate) in 
“quidistant alternate pairs, 1 in. long, ovate, acuminate, spinous- 
2 pened, sessile. Flowers forming a loose quasi-terminal spike 
th yt n.; flower-bracts 1 by } in., ovate, acuminate, long-spinous on 
© margin; bracteoles 3-1 in. long, linear, softly hairy. Posticous 
.yX-Segment 1 in. long, minutely hairy. Corolla 1} in. long.—Lindau 
m Engl. & Prantl, Pflanzenfam. iv. 3 B. 318. 
56g oF Guinea, Angola: Malange, Buchner, 6! Kuango River, Mechow, 
. 20. B. obmitrata, (.B. Clarke. Hairy or later glabrate. Leaves 
in apparent whorls of 4, subsimilar, 14-2 by 4-4 in., oblong or elliptic, 
sUbsessile, margin regularly spinous-toothed. Inflorescences 1-3} by 1 
™., strobilate, flower-bract 1-1} in. long, ovate-lanceolate, acuminate, 
ngid, spinous; bracteoles 3-1 in. long, linear. Posticous calyx- 
“gment } in, long; 2 inmost calyx-segments } in. long. Corolla | in. 
