1P)8 xcviii. ACANTHACE.E (clarke). [Neuracauthus. 



2. N. deconis, S. Moore in JomTi, Bot. 1HS(I, 307. Branchlets 

 fiilvous-sicabrous. Leaves up to t by 1 in., oblong-elliptic, entire, 

 fulvous-scabrous on the nerves beneath ; cystolitlis on both faces ; 

 petiole 0-^ in. long. Spikes terminal on axillary branches, 2 by |^ in., 

 rather densely strobilate, fulvous-hairy ; bract \-\ in. long, ovate, 

 subacute. Calyx ^-J in. long, in 2 pieces, densely fulvous-hairy ; 

 anticous segment divided § its length into 2 lanceolate teeth ; posticous 

 segment divided § its length into 3 lanceolate teeth. Pollen globose, 

 smooth, without longitudinal depressions. 



Zio^^er Guinea. Angola : Loanda ; between Lake Ivantala and Quilongues, 

 Welivitsch, 5057 ! 



3. N. strobilinuSy C. B. Clarke. Branches 6 in. long, simple, 

 scabrous hairy. Leaves 3J by 1| in., obovate-elliptic, greenish-yellow, 

 scabrous hairy on the nerves, tip obtuse or triangular-apiculate, base 

 tapering; petiole 0. Spike terminal, sessile, 2 J by | in., strobilate, 

 very dense ; bract § in. long, ovate, acute, mucronate, 5-nerved, hairy. 

 Calyx J in. long, anticous lip 2-fid half-way down, posticous 3-fid half- 

 way down, hairy without and within. Pollen globose, smooth, without 

 longitudinal depressions ; stopples 3. Pistil \-\ in. long ; one style 

 branch oblong, the other suppressed ; style-base subarticulated, sud- 

 denly contracted above the ovary. Capsule J in. long, ellipsoid-oblong, 

 compressed, sessile, glabrous, black, shining, 2-seeded ; seeds covered 

 with very slender hygroscopic hairs. 



Mozamb. Dlst. British Central Africa : Nyasaland ; Nyika Plateau, 5000- 

 6000 ft., Whyte, 138! 



The corollas (with stamens) have all fallen, but from the very short styles were 

 doubtless small. 



4. N. scaber, S. Moore inJourn. Bot. 1880, 307. Branches rather 

 stout, pubescent. Leaves up to 3 by Ij in., ovate, entire, minutely 

 scabrous on the nerves beneath ; cystoliths obscure ; petiole 0-\ in. 

 long. Inflorescence in dense axillary heads 1 in. in diam., made up 

 of condensed unilateral spikes, not (or only in fruit obscurely) strobi- 

 late ; bract ^-f in. long, ovate, acute, hairy, mucronate, not spinous. 

 Calyx J in. long, of two pieces, softly hairy ; anticous piece divided 

 more than half-way down into 2 lanceolate teeth ; posticous piece divided 

 less than ^ way down into -3 short teeth. Pollen globose, smooth, 

 without longitudinal depressions. Capsule -J in. long, 2-seeded. — 

 Lindau in Engl, k Prantl, Pflanzenfam. iv. 3 B. 315, fig. 108, B, 

 and in Engl. Pfl. Ost-Afr. C. 3(;9 partly. 



X.ower Guinea. Angola: Loanda, Welwitsch, mQA.\ 5125! 5128! 5171! 

 Bfozamb. Blst. German East Africa: Kilimanjaro, 2000-3500 ft., Volkens, 

 549 ! 2215 ! 



5. N. ukambensis, C. B. Clarke. Branchlets vely woody, with 

 many-celled hairs. Leaves 2 by 1 in., acute at either end, subsessile, 

 finally nearly glabrous except the many-celled hairs on the nerves 

 beneath ; main nerves 5 or pairs. Heads J in. in diam., on very 



