6 xcviii. ACANTHACE^ (burkill). [Afromendonciu. 



1. APROMENDONCIA, Gilg ex Lindau in Engl. Jahrb. xvii. 111. 



Calyx cupular, minute, obsoletely and unequally 5-lobed. Corolla- 

 tube somewhat broadening upwards ; limb distinctly bilabiate, with ~) 

 spreading rounded lobes, or the upper two shorter, broader and reflexed. 

 Stamens 4, didynamous, included, or the longer slightly exserted ; 

 anthers glabrous, subcordate at the base, apex more or less apiculate, 

 cells slightly diverging below, dorsally affixed. Disc annular or cushion- 

 like, fleshy, often half as long as the ovary. Ovary sessile, composed 

 of two united carpels, 1-celled, 2-ovuled ; ovules ascending from the 

 base but affixed by the ventral suture nearly to the apex of the cell. 

 Ftuit drupaceous. Immature capsule oblong or roundish-oblong. — Tall 

 woody climbing shrubs. Leaves opposite and decussate. Flowers in 

 axillary fascicles. Bracteoles 2, petaloid or subfoliaceous, ovate or 

 sometimes very broadly ovate. — Lindau in Engl. & Prantl, Pflanzenfam. 

 iv., 3 B, 201. Liraija, Pierre in Bull. Mus. d'Hist. Nat. Paris, ii. 340, 

 341. 



Bracteoles glabrous. 



Bracteoles 4 lin. long .... .1. A. lindaviana. 



Bracteoles 7-8 lin. long ..... 2. A. Jioribunda. 



Bracteoles villous. 



Leaves ovate-oblong, not rugose . . . . .3. A. glhjiana. 



Leaves broadly ovate or subovbicnlar, rugose . . .4. A. plnjtocrenoldes. 



1. A. lindaviana, Gilg ex Lindau in Engl. Jahrb. xvii. 112. A 

 woody climber, " 30 ft. high " {Mann). Stems twining, glabrous or 

 sometimes pilose at the nodes, slender when young, when old 3-4 

 in. diam., twisted, sulcate and slightly canescent. Leaves petiolate, 

 elliptic or oblong, cuspidate-acuminate, slightly undulate, somewhat 

 coriaceous, glabrous, light reddish-purple beneath, 2^-4^- in. long, 1-2 in. 

 broad ; lateral nerves 3-4 pairs, anastomosing near the margin ; petioles 

 |-1 in. long. Fascicles of flowers arising from axillary protuberances on 

 the old leafless stems; pedicels slender, glabrous, 0-7 lin. long; brac- 

 teoles 2, ovate, acute, glabrous, enclosing the flower, 4 lin. long. Calyx 

 very shortly cupulate ; limb obsoletely crenulate. Corolla scarcely 

 twice as long as the bracteoles ; tube short ; lobes spreading, rounded. 

 Stamens adnate to the upper part of the tube, the two longer slightly 

 exserted ; anthers cordate-oblong, shortly apiculate, somewhat unequal 

 at the base. Style glabrous, slightly exserted, minutely bifurcated at 

 the apex. — Oliv. in Ic. PI. t. 242 G ; Gilg in Ber. Deutsch. Bot. Gesellsch. 

 xi. 351. 



Upper Guinea. Cameroons : Bipinde, Zenker, 9G5 ! 



Zio-wer Guinea. Gaboon: Corisco Bay, Mann, 184i> ! Munda; SIbange Farm, 

 Soyaux, 15G I 



2. A. floribunda, Burkill. Leaves cuneate-obovate, cuspidate, 

 obtuse at the base, glabrous above, hairy on the nerves beneath ; lateral 

 nerves about 8 pairs ; petioles short. Flowers 4-6, in short axillary 

 racemes, 2-5 lin. long; pedicels 8-9 lin. long; bracteoles 2, elliptic, 

 acute, glabrous, rather thick, nerved, about G lin. long. Calyx annular, 



