108 xcviii. ACANTHACE.E (clarke). [Acuntkus. 



4. A. Barteri, T. Anders, in Journ. Linn. Soc. vii. 37. Leaves 

 8 by 3J 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, Millen, 121 ! Lower Niger, Onitsa, Barter, 1300 ! 



5. A. xnayaccanuSy Bilttn. in Verh. Ver. Brandenh. 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 f 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 1;^ in. long. 



Soutb Central. Lunda : in thickets by the Kuaiigo River, near Kassongo, 

 JBiittner, 355 ! 



G. 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 f in. long. Spike 3 by 1 in» 

 Bracts f by ^ ^^-f rhomboidal subovate, with several long marginal 

 innocuous spines ; bracteoles | in. long, linear, without spines. Pos- 

 ticous sepal 1 by nearly J in., oblong-quadrate, wide at the emarginate 

 top, 3-nerved, beautifully veined ; 2 anticous sepals connate nearly f 

 their length, ending in 2 lanceolate-subulate teeth. Corolla nearly 1 in. 

 long, white, purple-veined {Bates). Capsule | in. long. 



Kower Guinea. Gaboon, Mfoa, Bates, 533 ! 



Nearly allied to A. mayaccanus, but the posticous sepal is \-^ in. wide at the 

 top. 



7. A^.TyxxsexLii^ C.B.Clarke. Shrub, nearly glabrous; innovations 

 and axis of inflorescence minutely grey-hairy. Leaves 9J by 2J in., 

 elliptic, acuminate at either end, entire margin undulate, thin, green ; 

 primary nerves 19 pairs ; petiole 1 J in. long. Spike terminal, 5 by 1 in., 

 28-fiowered; bracts \ in. long, lanceolate, acuminate; bracteoles nearly 

 J in. long, elliptic, obtuse. Calyx-segments 4, J in. long, sub- equal 

 in length ; anticous segment elliptic, notched at the tip \-\ its 

 length. Corolla-tube f in. long ; upper lip 0. Capsule f in. long, with 2 

 ellipsoid, flat, quite smooth seeds (Lindau). — Fseudoblephuris Ditseniiy 

 Lindau in Engl. Jahrb. xx. 34, and in Engl, tk Prantl, Pflanzenfam. iv. 

 3 B.319. 



Upper Guinea. Cameroons, Busen, 348a ! 



8. A. ilicifolius, Linn. 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 G by IJ in. ; bracts J in. long, ovate; bracteoles \ in. long, trian- 

 gular-lanceolate. Calyx of 4 separate segments ; anticous (representing 



