362 CLVI. CYPERACE (CLARKE). [ Cyperus. 
otherwise as C. Zollingeri.—C. B. Clarke in Durand & Schinz, Conspect. 
Fl. Afr. v. 559. 
Nile Land. British East Africa: Jur; Jur Ghattas, Schweinfurth, 2280! 
South Central. Congo Free State; Nlemfu, Butaye ! 
This looks like a very large variety of C. Zollingeri. 
94. C. gracilinux, C. B. Clarke in Journ. Linn. Soc. xxi. 162. 
Glabrous. Stems 2 ft. high, at the top trigonous and smooth; 
stolons numerous, slender, clothed by striate brown scales. Leaves 
% the length of the stem, } in. broad. Umbel 6-12 in. in diam., com- 
pound, open ; bracts much longer than the umbel, similar to the leaves. 
Spikes loosely spicate, of 5-11 spikelets. Spikelets 3 by J, in., com- 
pressed, hardly at all quadrangular, 10-16-flowered, dirty-white ; wings 
of rhachilla elliptic-lanceolate, hyaline. Glumes approximate on the 
rhachilla, ovate-oblong subobtuse, ultimately obliquely spreading but 
imbricate. Nut 3% the length of the glume, oblong or narrowly 
ellipsoid ; style 3-fid.—C. B. Clarke in Durand & Schinz, Conspect. 
Fl. Afr. v. 564; Durand & Schinz, Etudes FI. Congo i. 288. C. tenwi- 
culmis, Boeck. in Flora, 1879, 554, not Boeck. in Linnea, xxxvi. 
286. 
Upper Guinea. Senegal, ZLécard, 103! 129! Sierra Leone, <Afzelius! 
Central Africa; Vogel! Niger, Baikie! 
Nile Land. British East Africa: Jur; Jur Ghattas, Schweinfurth, 2016! 
2029! 
95. C. locuples, (. B. Clarke in Durand d: Schinz, Conspect. Fl. 
Afr. v. 566. Glabrous. Rhizome creeping. Stem 1 ft. high, rather 
stout, at the top trigonous and smooth. Leaves # the length of 
the stem, 4-} in. broad. Umbel 6-8 in. in diam., very dense; 
bracts overtopping the umbel, similar to the leaves. Spikelets 40-60 
together in dense spikes, dusky straw-coloured, 14 by 7s in., UP 
to 60-flowered, slightly compressed ; wings of the rhachilla linear- 
lanceolate, faleate. Glumes approximate on the rhachilla, scarcely 
z= in. long, ovate, obtuse. Nut 4 the length of the glume, ovoid, 
chestnut-black ; style as long as the nut; branches 8, linear, exserted. 
Upper Guinea. Niger Territory: Nupe; Muye on the Niger, Barter, 187! 
96. ©. natalensis, Hochst. ex Krauss in Flora, 1845, 790. 
Glabrous. Rhizome long-creeping, ;J, in. in diam. Leaves 0 in Krauss 
description, often 2-6 in. long, in Krauss’ type 26 in. Jong, up to } in. 
broad. Umbel-rays 3-6, up to 1-4in. long, the secondary umbel at the end 
of each congested into a compound head of 12-35 spikelets ; bracts 
usually short, but overtopping the umbel when the leaves are long- 
Spikelets 3 by ,'5 in., very slightly compressed, dirty straw-coloured, 
12—24-flowered, wings of rhachilla linear, i.e. hardly any. Glumes 
ovate, hardly acute, 9—-ll-nerved, in fruit obliquely spreading but 
imbricate, hard in texture. Nut hardly 2 the length of the glume, 
oblong, obtuse, chestnut-black. Style nearly as long as the nut; 
branches 3, linear, exserted.—Boeck. in Linnea, xxxvi. 343; C. B. 
