Dicliptera.] xcviii. acanthace.k (clarke). 201 



Filiiments glabrous, one anther-cell completely above the other. 



D. bupkitroides, T. Thorns, in Sj)eke, Nile, Append. (144. JJidiptera, sp. 

 neiu^ D. buplenroides, OMv. in Trans. Linn. Soc. xxix. loU. J), knme- 

 runensis, Lindau in Engl. Jahrb. xxii. 121 (?). 



wile Ziand. Ikitish East Africa: Madi, Oranf ! Moru district, at Wayo, 

 Petherick ! 



Lindau's D. kamerunensis is Passanje, 128, from tlie Cainerooiis. The species of 

 tlie present group are all of them near D. hupleuroides, and D. roxhurghiana, Noes ; 

 but why Dr. 'I'homson and Prof. Oliver thought the present plant specially near 

 D. Impleuroiden is not so clear ; the heads have not the axillary character seen in 

 D. hupleuroideH ; the reduced narrow upper leaves make the inflorescence .ippear 

 like heads in a terminal panicle. 



1(5. D. Melleri, Iiolfe in Gates, Mataheleland, eel. 2, 4ur>. 

 Branches pubescent, finally glabrate. Leaves 1 J by \ in., narrowed at 

 both ends, glabrate ; petiole 0-yV in. long. Heads of flowers nearly all 

 a})proximated into a terminal oblong compound spike, up to :> by h in. 

 Lower bract to spikelet J by jV-J in., lanceolate or obovate-lanceolate, 

 with spreading white hairs; bract to upper flower similar but shorter. 

 Calyx I in. long. Corolla | in. long. Filaments glabrous, minutely 

 hairy in the lower part ; one anther-cell completely above the other. 

 Capsule I in. long, hispid at the top, ovoid, flattened, 2-seeded ; placentae 

 rising elastically from the base of the valves. Seeds papillose, hardly 

 tubercled. 



Mozaxnb. Dist. British Central Africa : Nyasaland : between Blantyre and 

 Matope, 2500 ft., Scott ! Mount Chiradzulu, Meller ! and without precise locality, 

 Buchanan ! Matabeleland, Oate.s ! 



Imperfectly hnoimi species. 



17. Duvemoia Descaxnpsiiy Dewi'vre in Comptes-rendvs >Soc, Hot. 

 Bely. xxxiii. (1895), 104 {name only). 



Mozaml). Sist. British Central Africa : Nyasaland ; Karonga, Descamps ! 



There are authentic flowers of this in the Berlin Herbarium, whence it is seen to be 

 a Dicliptera, with narrow-lanceolate bracts to the spikelet. 



Of doubtful position. 



59. HIERNIA, S. Moore in Journ. Bot. 1880, 190. 



Calyx tubular- cam panulate, with 5 long narrow teeth. Corolla-tube 

 somewhat curved, widening very gradually upwards ; lobes spreading, 

 ovate, very obtuse, imbricate in the bud, one lobe entirely witliin, the 

 two posterior somewhat united. .Stamens 4, inserted on the corolla - 

 tube, didynamous ; anthers composed of one anther-lobe, in the bud 

 folded upon the filaments, lying inside and parallel to them, acute at 

 the free end and dehiscing by a short slit, which commences at the free 

 en<l and extends towards the middle ; the second anther-lobe representtMl 

 b}' a minute wart at the apex of the tilament. Pollen smooth, sub- 

 globose. Ovary with two unecjual cells, each with G-IO ovules in two 

 rows. Capsules markedly oblique, flattened laterally, and grooved down 



