258 xcviii. ACANTHACE.E (clarke). [BicHpt&i'a. 



5. De laxata, C. B. Clarke. Branches angular, nearly glabrous. 

 Leaves P)| by l^ in., triangular- acute at either end, nearly glabrous; 

 petiole often 1 in. long. Cymes axillary, | in. in diam. ; spikelets nearly 

 all manifestly pedicelled ; outer bract ^-h by -J in., elliptic-acute, nearly 

 glabrous. Calyx ^ in. loner. Capsule Jj in. long, hairy ; placentae rising 

 elastically; seeds tubercled. 



"Nile Iiand. Hritish East Africa : KavironJo ; Samia, /Sco^^- £'///o^, 7098 ! 



nzozamb. ]>lst. British Central Africa : Nyasaland ; Masuka Plateau, 6500- 

 7000 ft., ir/ii/te ! 



0. D. alternans, Liudmi in Engl. Jahrh. xx. 4-7. Stem weak, 

 sparingly hairy. Leaves '2\ by 1 in., elliptic, suddenly narrowed at 

 either end, nearly glabrous ; petiole ^,-J in. long. Spike terminal ; 

 spikelets alternate, solitary, -,V-| in. apart, in the axil of one of two 

 opposite unequal minute floral leaves ; two bracts to the spikelet 

 subequal, \ by yy in., elliptic, subobtuse, green-veined, nearly glabrous. 

 Corolla nearly h in. long. Capsule ^ in. long, somewhat pubescent ; 

 placentae rising elastically from the base of the capsule. 



Upper Guinea. Cameroons : \^\\qz, Frenss, QOi\ 



7. D. mossambicensis, Klotzsch in Peters, Jteise Mossamh. Bot. 220. 

 Stems 2-0 ft. long, 4-angular, white on the angles, glabrous or shaggy 

 white-hairy. Leaves 1 by J in. {Klotzsch). Heads of spikelets rather 

 dense, subglobose, axillary and terminal. Two bracts of the spike - 

 ]et ?j-l by \—]i in., ovate, acute, mucronate, hairy, sometimes one 

 of thel^wo much larger. Sepals 5, J in. long, hairy. Corolla | in. 

 long. Stamens 2 ; anther-cells 2, one completely over the other. 

 Capsule \ in. long, hairy on the margin ; placentae rising elastically 

 from the base of the capsule-valves. — Lindau in Engl. Pfl. Ost-Afr. C. 

 871. 



IVIozaml). I>ist. German East Africa : Rovuma River, KirJc ! Portuguese 

 East Africa : Mozambique, Klotzsch ! Lower Zambesi ; Shupanga, Stewart ! Lower 

 Sl)ire Valley ; Makanga Mountain, Scott ! 



None of the examples seen have any leaves. 



8. D. Elliotii, C. B. Clarke. Stems G-8 in. long, glabrate. 

 Leaves H by f in., ovate, acuminate at either end, nearly glabrous; 

 petiole I In. long. Heads of spikelets rather dense, subglobose, axillary 

 and terminal. Two bracts of the spikelet | in. long and broad, 

 round-obovate, hairy, shortly white ciliate on the margin. Corolla about 

 4- in. in total length. Capsule \ in. long, hairy on the margin ; placentae 

 rising elastically from the base of the capsule- valves. 



Upper Guinea. Sierra Leone : shady places by the Scarcies River, at Wallia, 

 Scott-Elliot, 4G32 ! 



Itower Guinea. Congo, Smith, 8 ! 64 ! 



0. D. micranthes, Xees in Wall. PL As. Par. iii. 112. Stems 

 1-2 f^. long, fi-angular, angles Avhitened, glabrous or sparsely hairy 

 upwards. Leaves 3 by 1 J in., elliptic, narrowed at both ends, glabrous 



