Cyperus. | CLVI, CYPERACEE (CLARKE). 345 
This species differs from C. Deckenii by the smaller spikelets. Buchanan, 647, 
and Whyte’s example are identical with the typical C. Baroni from Madagascar. 
As to Holst, 3385, it is nearer C, Deckenii than C. Mannii, but the bracts attain Zin. 
in width, so that it does not exactly match anything e!se ; the spikelets are too long 
‘with too distant glumes to match C. Ajax. 
60. C. zambesiensis, (. B. Clarke in Durand & Schinz, Conspect. 
Fl. Afr. v. 581, Stem exceeding 44 ft. long, stout, at the top 
triquetrous. Leaves 3 ft. by $—} in., 3-nerved. Umbel decompound, 
rays 9 in. long; secondary rays slender, flexuose, with innumerable 
brown spikes. Spikelets 2—5 together, } by ;}; in., compressed, delicate, 
10-12-flowered, comose from the red-brown stigmas. Glumes ovate, 
apiculate, hardly mucronate. Style short; branches 3, linear, long. 
Nut scarcely 4 the length of the glume, ovoid, trigonous. 
Mozamb. Dist. British Central Africa: Nyasaland; Shire Highlands, 
Buchanan, 47! 
This was marked by Boeckeler C. longifolius, Poiret, which has much larger 
spikelets and nuts and is near C. diffusus, Vahl. It is near the large examples of 
C. Baroxi, but the slender branchlets of the umbel and delicate spikelets give it a 
different aspect. Whyte’s Mlanji plant, which I formerly referred here, I have 
above renamed C. Deckenii. 
61. GC, Renschii, Boeck. in Flora, 1882, 11. Glabrous. Rhizome 
horizontal. Stem attaining 6 ft. high, very stout, at the top triquetrous 
or almost 3-winged. Leaves up to 4 ft. by 14 in., 3-nerved. Umbel 
8-24 in. in, diam., decompound in a rigid somewhat divaricate mavner ; 
bracts 2 ft. by  in., similar to the leaves. Spikes innumerable, green, 
finally brown-red, exceedingly small, of 2-7 clustered spikelets. 
Spikelets ,-1 in. long, hardly compressed, oblong or ovoid, 3-6- 
flowered. Glumes ovate, distichous, keel minutely excurrent into a 
mucro. Stamens 3-2; anthers small, oblong, muticous. Undivided 
part of the style } the length of the nut; branches 3, as long as the 
nut. Nut 4~2 the length of the glume, obovoid, smooth, brown ; 
apex pyramidal.—C. B. Clarke in Durand & Schinz, Conspect. ¥ i Afr. 
v. 573; Rendle in Cat. Afr. Pl. Welw. ii. 113. C. hyleus, Ridley in 
Trans. Linn. Soc. ser. 2, Bot. ii. 134. C. sylvicola, Ridley in Bolet. 
Soc. Brot. v. 208, t. F, fig. A. ©. deremensis, K. Schum. in Engl. Pal. 
Ost-Afr. C.119. C. ochrocarpus, K.Schum. in Engl. Pfl. Ost-Afr. C. 
122. Scirpus trialatus, Boeck. in Flora, 1879, 563. 
Upper Guinea. Gold Coast; Kwaha, 2000 ft., Johnson, 689! and without 
Precise locality, Burton § Cameron! Cameroons: Cameroon Mountain, 2000- 
3000 ft., Mann, 2103! : 
Wile Land. British East Africa: Niamniam, Schweinfurth, 3109! Rabai 
Hills, near Mombasa, Taylor ! : 
Lower Guinea. I<land of St. Thomas, 4000-6000 ft., Quintas, 10! and in 
Fi. Afr. Exsice. Conimbric., 116! Moller in Fl. Afr. Exsice. Conimbric., dv! 
hed Congo: Kisantu, Gillet, 574! Angola: Golungo Alto ; by streams, Welwitsch, 
! 
South Central. Lunda: Mukenge, Pogge, 1588! 1599! Congo Free State: 
Lualaba River, Pogge, 1589 ! 
