Mariscus.| CLVI. CYPERACE& (CLARKE). 381 
No authentic specimen of M. kyllingieformis, Boeck., has been seen. But it 
would appear that the earlier-made species of this author, which are passed by in his. 
later systematic work, were meant to be abandoned. 
Var. incrassatus, C. B. Clarke in Durand & Schinz, Conspect. Fl. Afr. v. 587. 
More robust. Leaves flat, 1 in. broad, tough, almost leathery ; sheaths large, not 
torn. Inflorescence 4 in. in diam., of 4~7 spikes fused into a head. 
Mozamb. Dist. Portuguese East Africa: Isle of Angorna, Peters, 38! 
2. M. coloratus, Nees in Linnea, ix. 286. Spikelets ovate or 
lanceolate, acute. Glumes subacute. Nut ashy-black, puncticulate or 
manifestly reticulated ; otherwise as M. dregeanus.—Kunth, Enum. ii. 
126; C. B, Clarke in Durand & Schinz, Conspect. Fl. Afr. v. 585; 
Rendle in Cat. Afr. Pl. Welw. ii. 120. Cyperus coloratus, Vahl, 
Enum. ii. 312; Schumach. Beskr. Guin. Pl. 34; Benth. in Hook. 
Niger Fl. 550; K.* Schum. in Engl. Pfl. Ost-Afr. C. 121. C. dubius, 
Boeck. in Linnea, xxxvi. 336 in great part ; Ridley in Trans. Linn. 
Soc. ser. 2, Bot. ii. 133 in great part; Schweinf. in Bull. Herb. Boiss. 
ii. Append. ii. 49. Schenus coloratus, Linn. Sp. Pl. ed. 2, 64 partly. 
Isolepis Beeckeleri, Oliver in Trans. Linn. Soc. xxix. 167. 
Upper Guinea. (Gold Coast: Aquapim Mountains, Vogel ! Niger Territory = 
Jeba, Barter ! 
Nile Land. Somaliland, Miss Edith Cole! British East Africa: Uganda; 
Stuhlmann, 1950! Kamasia, Gregory, 63! Rabai Hills, near Mombasa, Taylor / 
Lower Guinea. Angola: Ambriz, Monteiro! Pungo Andongo; on rocks near 
Quilanga, Welwitsch, 6802! on rocks of the Presidium, Welwitsch, 7162! Huilla; 
wooded pastures at Monino, Welwitsch, 6804! and without precise locality, Curror / 
Welwitsch, 7148! 
Mozamb. Dist. Zanzibar, Kirk! German East Africa: Kilimanjaro ; 
Marangu, 7400 ft., Volkens, 1496! and without precise locality, Speke § Grant! 
Lake Tanganyika, Cameron ! 
_ Var. macrocephala, C. B. Clarke in Durand & Schinz, Conspect. Fl. Afr. v. 586. 
Very large. Spikes 5-6, large, in one head —Cyperus dubius, forma macrocephala, 
Boeck, in Flora, 1870, 556. 
Wile Land. British East Africa: Niamniam ; at Makporru Hill, Schweinfurth, 
8790! Uganda, Stuhlmann, 1884! Rabai Hills, near Mombasa, Taylor / 
3. M. diurensis, (. B. Clarke in Durand & Schinz, Conspect. Fi. 
Afr. vy. 586. Glabrous. Stolons numerous, slender, 1-2 in. long, 
clothed by red-brown striate scales, terminating in a shoot. Stems 
4pproximate, 4~12-in. long, slender, at the top trigonous and smooth, 
at the base ellipsoid-oblong, thickened by the leaf-sheaths torn into 
fibres. Leaves often as long as the stem, } in. broad, weak. Head 1, 
ovoid, } in. in diam., dense, dirty straw-coloured ; bracts 4, up to 3-6 
in. long, similar to the leaves, at the base dilated and suberect, then 
Spreading. Spikelets 1 in. long, very little compressed, 2—6-flowered, 
caducous in one piece by an articulation above the two lowest empty 
glumes. Glumes distant, in fruit not overlapping, ovate, obtuse, very 
strongly 11-13-ribbed, with red round small glands. Nut 3-3 the 
length of the glume, trigonous, oblong-ellipsoid, black. Style nearly as 
