110 xcviii. ACANTHACEiE (clarke). [SclerochitoTi . 



Posticous calyx-segment ^ in. wide ; internodes 



short 6. S. Eolstii. 



Posticous calyx-segment with linear oblong obtuse tip . 8. S. ohtusisepalus. 



Posticous calyx-segment ending in 2 lanceolate acute 



teeth , . , . . . . , 7. S. scissisepalus. 



1. S. Kirkii, C. B. Clarke. Glabrous shrub. Leaves up to 

 12 J by 4 in., base decurrent to the foot of the petiole. Spikes terminal ^ 



2 in. long, G-8-flo\vered ; peduncle J in. long ; bract f by J in., quadrate, 

 shining, almost horny ; bracteoles § by J in., similar to bract. Calyx- 

 segments 5 of equal length ; posticous 1 by nearly J in., triangular- 

 lanceolate, acute, shining, many-nerved ; others much narrower. 

 Corolla IJ in. long. Anthers long, hairy. — Acanthus Xirkii,T. Anders, 

 in Journ'! Linn. Soc. vii. 37; S. Moore in Journ. Bot. 1880, 233; 

 Lindau in EngL Pfl. Ost-Afr. C. 370. 



IMozamb. 3>ist. Portuguese East Africa : Morambala Mountain, 2000 ft., 

 Kir/c ! 



2. S. Preussii, C. B. Clarke. Leaves up to 9 by 3| in., base 

 tapering into the petiole ^-J in. long. Bract nearly 1 by |^ in., 

 quadrate, shining ; bracteoles 1 by J-J in., quadrate-oblong. Calyx 

 1\ in. long (rather more in fruit), of 5 equally-long separate pieces; 

 posticous segment nearly J in. broad, entire, shining, many-nerved ; 

 others much narrower. Capsule f by J in. — Fsevdoblepharis Preussiif 

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



3 B. 319, fig. 112, A, B. 



"Upper Guinea. Cameroons : North-west Buea, Freuss, 1073 ! 

 This is very near S. Kirkii, 



3. S. nitidus, C. B. Clarke. Nearly glabrous shrub. Leaves up 

 to 8 by 2\ in., narrowed at both ends ; petiole J— | in. long. Spike 

 3 J by 1 in., terminal, subsessile; bracts f by J in., elliptic, acute, 

 concave, minutely hairy, margins white-hairy ; bracteoles h hj \ in. 

 Calyx J in. long, of 5 separate pieces. PowSticous segment elliptic, acute; 

 others narrower. Corolla 1 in. long, light violet (aS'. Moore). Anthers 

 long, hairy ; pollen globose. — Acanthus nitidtcs, S. Moore in Journ. 

 Bot. 1880, 232. Fsevdoblepharis nitidaf Lindau in Engl. & Prantl^ 

 Pflanzenfam. iv. 3 B. 319. 



Xiower Guinea. Angola : Pungo Adongo, JFelwifsch, 5087 I 5100 ! 

 This plant recedes from the genus in the long spike with silky margins to 

 the sepals. 



4. S. Boivini, C. B. Clarke. Glabrous. Branches thick, woody, 

 with short nodes. Leaves 4 by 1 in., elliptic, narrowed at both ends ; 

 petiole ^ in. long. Spikes terminal on short lateral branches, short, 

 few-flowered, or sometimes 3 in. long and 20-flowered ; bract J by J in., 

 elliptic ; bracteoles J by J in., oblanceolate, subacute. Posticous calyx- 

 segment It by J in., narrowly obovate, obtuse or emarginate, many- 

 nerved ; others 1 by J in., subacute. Corolla, hardly exceeding the 



