Mariscus. | CLVI. CYPERACE# (CLARKE). 399 
Upper Guinea. Gold Coast: Axim, de Gurig, 37! 
This differs mainly from M. flabelliformis by having more nuts (7) to the 
spikelet, and therefore longer spikelets; the spikes are not broader owing to the 
spikelets being obliquely erect. The rhizome and broader nut are additional 
differences, 
48. M. trinervis, C. B. Clarke in Durand & Schinz, Conspect. 
Fl. Afr. v.595. Glabrous. Neither stem nor leaves seen. Umbel-rays 
7,up to 24 in. long, each carrying 3-6 closely subcorymbose spikes ; 
bracts 6, lowest, 11 by }in., flat, rigid, scabrous on the margins, with 
humerous striations and 2 stronger lateral nerves. Spikes + by 3 in., of 
20 spikelets spreading at right angles, pale brown. Spikelets linear, 
hardly at all compressed, maturing 8 nuts, falling off in one piece above 
the two lowest empty glumes. Nut-bearing glumes subremote, ovate, 
at the top obtusely triangular, obliquely suberect, almost nerveless on 
the sides. Nut 4 the length of the glume, narrowly obovoid, brown, 
truncate at the “top. Style hardly any; branches 3, linear, hardly 
exserted. 
South Central. Lunda: Mukenge, Pogge, 1582! 
49. M. foliosus, (. B. Clarke in Durand & Schinz, Conspect. FI. 
4fr. v. 588. Glabrous. Rhizome 1-1} in. long, horizontal. Stems 
\-2 ft. long, at the top trigonous and smooth. Leaves longer than the 
stem, 4-4 in. broad, scabrous at the tips. Umbel compound; rays 
10-12, up to 4 in. long; bracts 6-9, similar to the leaves, lowest 8 in. 
long. Spikes 3-1 together, as long as broad, rather loosely spicate, of 
20 spikelets, spreading at right angles or deflexed, dull green. Spikelets 
3 by 2, in, subterete, maturing 3—5 nuts, disarticulating in one piece 
above the two lowest empty glumes. Glumes very remote, ovate- 
lanceolate, somewhat keeled, erect-adpressed on the nut. Nut more 
than } the length of the glumes, narrowly oblong, trigonous, black ; style 
3-branched.— Cyperus foliosus, K. Schum. in Engl. Pfl. Ost-Afr. C. 122. 
Nile Land. British East Africa: Kivata, in Ruwenzori district, 9000 ft., 
Scott-Elliot, 7674! Rabai Hills, near Mombasa, Taylor / 
Mozamb. Dist. British Central Africa: Nyasaland; Mount Zomba, 4000- 
6000 ft., Whyte! Nyika Plateau, 6000-7000 ft., Whyte ! 
This is near Y. flabelliformis, but has broader leaves, and usually longer 
spikelets. : 
50. M. luridus, C. B. Clarke in Durand & Schinz, Conspect. FI. 
4fr. v. 589. Leaves and bracts $-Lin. broad. Umbel-rays hardly up 
to 1 in. long, Spikelets lurid-green, ? by ;\; in., maturing 5-8 nuts ; 
thachilla wavy. N ut-bearing glumes very remote, oblong, obtuse ; 
otherwise as M. foliosus or M. flabelliformis.—Durand & De Wild. in 
Comptes-rendus Soc. bot. Belg. xxxvi. 89; Durand & Schinz, Etudes 
l. Congo, i. 296. 
South Central. 
Congo Free State: [by the River Congo at Lulonga, 900- 
000 ft., Hens, C, 155! 
