108 XCVII1, ACANTHACEE (CLARKE). [ Acanthus. 
4, A. Barteri, 7. Anders. in Journ. Linn. Soc. vii. 37. Leaves 
8 by 34 in., broad-elliptic, short-acuminate at both ends, not at all 
lobed, margin rather remotely and regularly toothed ; teeth $ in. long, 
triangular mucronate ; otherwise as A. montanus. 
Upper Guinea. Lagos, Willen, 121! Lower Niger, Onitsa, Barter, 1800! 
5. A. mayaccanus, Biitin. in Verh. Ver. Brandenb. xxxii, [1890] 
37. Shrub apparently subscandent, pubescent, afterwards glabrate. 
Leaves 10 by 3 in., narrowly obovate-lanceolate, acute, entire, sessile, 
with long tapering base. Spike 4 by 1} in.; bracts 1 in. long, ovate, 
with several long marginal spines ; bracteoles 3 in. long, subulate, not 
spinous. Calyx exceeding 1 in. in length, not spinous; anticous 
segment 1 in. long, narrow-elliptic, prolonged into an oblong apical 
portion ; tip very shortly and bluntly 2-lobed ; 2 inmost segments broad- 
lanceolate, caudate, acuminate. Corolla 14 in. long. 
South Central. Lunda: in thickets by the Kuango River, near Kassong® 
Biittner, 355 ! 
6. A. latisepalus, C. B. Clarke. Nearly glabrous. Leaves up 
to 5 by 2} in., elliptic, rather suddenly narrowed at either end; 
margin undulate, hardly toothed; petiole 3 in. long. Spike 3 by 1 m. 
Bracts 3 by 3 in., rhomboidal subovate, with several long marginal 
innocuous spines; bracteoles 3 in. long, linear, without spines. Pos- 
ticous sepal 1 by nearly } in., oblong-quadrate, wide at the emarginate 
top, 3-nerved, beautifully veined; 2 anticous sepals connate nearly 5 
their length, ending in 2 lanceolate-subulate teeth. Corolla nearly | 10. 
long, white, purple-veined (Bates). Capsule ? in. long. 
Lower Guinea. Gaboon, Mfoa, Bates, 533 ! 
Nearly allied to 4. mayaccanus, but the posticous sepal is }—4 in, wide at the 
top. 
7. A. Dusenii, C. B. Clarke. Shrub, nearly glabrous; innovations 
and axis of inflorescence minutely grey-hairy. Leaves 94 by 2} 104 
elliptic, acuminate at either end, entire margin undulate, thin, gree? > 
primary nerves 19 pairs ; petiole 14 in.long. Spike terminal, 5 by 112. 
28-flowered; bracts } in. long, lanceolate, acuminate ; bracteoles nearly 
% in. long, elliptic, obtuse. Calyx-segments 4, } in. long, sub-equal 
in length; anticous segment elliptic, notched at the tip }-3 18 
length. Corolla-tube 3 in. long ; upper lip 0. Capsule 2 in. long, with 2 
ellipsoid, flat, quite smooth seeds (Lindaw).—Pseudoblepharis Dusen 
Lindau in Engl. Jahrb. xx. 34, and in Engl. & Prantl, Pflanzenfam. 1V- 
3 B.319. 
Upper Guinea, Cameroons, Dusen, 348! 
8. A. ilicifolius, Zinn. Sp. Plant. ed. ii. 892. Shrub 1-5 ft. high, 
glabrous or very nearly so. Leaves 4—7 by 1-3 in., pinnatifid or lobed, 
spinous (scarcely spinous or quite entire leaves occur), nearly sessile. 
Spikes 6 by 1} in. ; bracts } in. long, ovate ; bracteoles } in. long, trian 
gular-lanceolate. Calyx of 4 separate segments ; anticous (representing 
