232 xcviii. ACANTHACE/E (clarke). [Isoglosstt. 



each face and no distinct girdle. Pistil glabrous. — Lindau in Engl, cfe 

 Piantl, Pflanzenfam. iv. 3 B. 344, and in Engl. Pfl. Ost-Afr. C. 372. 



lO'lle Ziand. British East Africa : Ruwenzori ; Toru district, in Wimi Valley, 

 7000-8000 ft., Scott-Eiliot, 7836! and in Butagu Valley, 6000-8000 ft., Scott- 

 Elliot, 7915 ! Sttihlmann, 2474 ! 



12. I. oerstediana^ Lindau in Engl. Jahrh. xx. 56. Calyx- 

 segments \ in. long, nearly free, linear, green, subulate and curved in 

 the upper half, with cystoliths. Capsule J in. long, 4-seeded ; seeds with 

 rough oblong tubercles ; otherwise as /. runssorica. — Lindau in Engl. 

 k Prantl, Pflanzenfam. iv. 3 B. 344, and in Engl. Pfl. Ost-Afr. 

 C. 372. 



xrUe land. Abyssinia, Schimper ! British East Africa : Raomi River, 7000 ft., 

 Scott-Ellioi, 6767 ! 



XWEozaxub. 3>ist» German East Africa : Kilimanjaro, 4500-9000 ft., Volkens^ 

 1121! 1123 1382! 1387 I 1852! 1936! Johnston, l\i^\ Usambara, iZoZ^^ 523 ! 



The difference of this plant from I. runssorica is small. Lindau lays stress on the 

 pubescent panicle branches of /. runssorica, but the ])anicle branches of the present 

 species are similarly pubescent. 



13. I. milanjiensis, S. Moore in Trans. Linn. Soc. ser. 2, Bat. iv. 

 33. Calyx-segments ^ in. long, in fruit nearly J in. long, nearly free, 

 linear, green, minutely hairy, subulate and curved in the upper half. 

 Corolla J in. in total length ; otherwise nearly as /. oerstediana and 

 /. runssorica. — Lindau in Engl. &, Prantl, Pflanzenfam. iv. 3 B. 344, and 

 in Engl. Pfl. Ost-Afr. C. 372. 



Mozamb. X>lst. British Central Africa : Nyasaland ; Mount Mlanje, 6C00 ft., 

 JFhi/ie ! 



14. I, Gregoriiy Lindau in Engl. Pfl. Ost-Afr. C. 372. Leaves 

 1 1 by 1 in., ovate, nearly glabrous. Inflorescence terminal up to 4 by 

 J in. ; flowers in small sessile clusters ; outer bract (of S. Moore) 

 J-J in. long, ovate, enclosing 3-1 flowers; bract J in. long, linear. 

 Calyx J in. long, and upwards, pubescent. Corolla-tube ^ in. long; 

 lips J in. long. Anther-cells one much lower than the other. Pistil, 

 capsule, and seeds of the genus. — Lindau in Engl. & Prantl, Pflanzen- 

 fam. iv. 3 B. 344. Ilomilacanthus Gregorii, S. Moore in Journ. Bot. 

 1884, 129, t. 343. 



Wile Xiand. British East Africa : Mount Kenia, 7000 ft., Gregory I 



S. Moore regarded the floral-leaves {traghldtter) which enclose the flower-clusters 



us bracts (deck-blatter)', and therefore supposed this species must fall among Bentham's 



subtribe Dielipterece. 



15. I. substrobilina, C. B. Clarke Branches quadrangular, with 

 a strong line of deflexed white hairs. Leaves up to 3 J by 1| in., 

 acuminate at either end, when mature nearly glabrous except on the 

 nerves ; cystoliths many on both faces ; petiole J to J in. long. Spikes 



