^euracanthics.] xcviii. ACANTHACEiE (clarke). 139 



short lateral branches, with 'many-celled hairs and also long needle-like 

 one-celled hairs ; bracts |-j\ in. long, broadly obovate, shortly apiculute, 

 3-nerved as the hairs wear oft*. Calyx and corolla nearly as of 

 lY. scaber. 



Wile land. British East Africa : Ukamba, Uildebrandt, 2723! 



This has been put with N. scaber, S. Moore. 



6. N. niveus, .S'. Moore m Journ. Bot. 1880, 37. White stellate- 

 tomentose ; branches 2 ft. long, from a short woody rootstock. Leaves 

 up to 4 by 2J in., broadly elliptic, acute, entire, upper surface finally 

 glabrate with subconspicuous oystoliths; petiole 0—\ in. long. In- 

 florescence of dense axillary heads 1-1 J in. diam., with long white hair, 

 made up of few-flowered condensed unilateral spikes; bract \-\ in. 

 long, ovate, acute, soft mucronate, dark brown. Calyx \-\ in. long, of 

 2 pieces, each divided rather more than J way down ; teeth b, linear- 

 lanceolate, long hairy. Pollen globose-subtrigonous, smooth, without 

 longitudinal depressions. Pistil of genus. — Lindau in Engl. &l Prantl, 

 Pflanzenfam. iv. 3 B. 315. 



XTile Iiand. British East Africa : Jur ; Jur Ghattas, Schweinfurth, 1963 ! 



7. N. Iiindaui, C, B. Clarke. Stem and young leaves densely 

 white-tomentose. Mature leaves 2 J by 1 in. ; tip triangular ; base 

 tapering into a petiole ^ in. long ; main nerves about 9 pairs, finally 

 nearly glabrate above. Heads hardly 1 in. in diam., on short lateral 

 branches, white woolly; bracts substrobilate \-\ in. long, broadly 

 obovate, shortly apiculate, obscurely 3-nerved as the white wool wears 

 ofi*. Calyx and corolla as in N. niveus. — Leucoharleria nivea, Lindau in 

 Ann. Istit. Bot. Roma vi. [189G] 77, and in Engl. & Prantl, Pflanzenfam. 

 Nachtr. zu ii.-iv. 306, not Neuracanthus niveus, S. Moore. 



Ifflle Iiand* Soinaliland : between Danna and Ueb (River) Karanle, Riva, 

 945! 



8. N. polyacanthus, C. B. Clarke. Harsh branched shrub 10 in. 

 in diam. ; young parts white stellate-tomentose. Leaves j-l by § in,, 

 ovate, entire, when mature glabrate ; petiole 0-^ in. long. Inflorescences 

 in axillary prickly heads, f in. in diam., made up of 1-flowered and 

 sterile unilateral scorpioid cymes ; sterile spike " flexuous many-prickled 

 pubescent spine " of Lindau ; fertile spike nearly same with 1 flower at 

 the base ; bract linear, 1 in. long. Calyx J-J in. long ; segments 2, ovate, 

 acute, subsimilar, subentire ; anticous 2-nerved ; posticous 3-nerved. 

 Pollen globose-subtrigonous, smooth, without longitudinal depressions. 

 Capsule |-J in. long, ovoid, acute, hardly beaked, 2-seeded, compressed, 

 shining brown. — Leucoharleria j)olyacantha, Lindau in Ann. Istit. Bot. 

 Roma vi. (1896) 77, and in Engl, k Prantl, Pflanzenfam. Nachtr. 

 zu ii.-iv. 306; Rendle in Journ. Bot. 1896, 413. 



Wile Iiand. Soinaliland : Terfa Torrent-bed, Donaldson Smith ! Ogaden, 

 Robecchi, 240! Elba, Riva, 914! Abdallah, Keller, 198! 



