Mariscus. | | CLVI. CYPERACEZ (CLARKE). 389 
in Journ. Linn. Soc. xxi. 201. C. ovularis, Boeck. in Linnea, xxxvi. 
376, var. a partly, not of Torrey. C. cylindrostachys, Boeck. in Linnea, 
xxxvi, 383 mainly; Schweinf. in Bull. Herb. Boiss, ii. Append. ii. 49 2, 
1042 C. steudelianus, Boeck. in Engl. Jahrb. v. 91. C. sieberianus, 
K. Schum. in Engl. Pfl. Ost-Afr. C. 122. C. leptophyllus, Schweinf. 
in Bull. Herb. Boiss. ii. Append. ii. 48 (at least as to Schweinf. n. 
2136 cited). 
Upper Guinea. French Guinea: Farana and Dantilia, Scott-Elliot, 58614! 
Togo, Kling, 73! Cameroons: Yaunde, Zenker, 1503! 
Nile Land. Eritrea: Ginda, 3200 ft., Schweinfurth & Riva, 2136! British 
roe Africa : Ruwenzori, 5000 ft., Scott-Elliot, 7617! Undusuma, Stuhlmann, 
901! 
Lower Guinea. Lower Congo; Stanley Pool, Hens, 377! above Stanley 
Pool, Johnston ! Angola: Malange, Pogge, 459! 460! 461! Buchner, 12! San 
Salvador, Buettner, 13! 
Mozamb. Dist. German East Africa: Karagwe; Kafuro, 4500 ft., Stwhl- 
mann, 18818! British Central Africa: Nyasaland; Kondowe to Karonga, Whyte! 
Shire Highlands, Buchanan, 22! Blantyre, Scott! Mount Malosa, Whyte! Mount 
Zomba, 4000-6000 ft., Whyte! Namasi, Cameron, 16! and without precise locality, 
Buchanan, 1427! N gamiland; Kwebe Hills, 3300 ft., Mrs. Lugard, 142! 
Also in South Africa, the Mascarene Islands, India, Malaya, Tropical Australia, 
and Polynesia. 
This abundant species may be esteemed the type of the genus Mariscus, and is 
described here at length; the eleven following species (up to 34. MZ. flavus), 
being, in the opinion of competent botanists, only forms of MZ. sieberianus are 
described shortly as to the chief points wherein they differ from UW. sieberianus. ‘The 
Synonymy is guess-work, except where the actual plants have been seen. I cannot 
agree with Boeckeler that any of the African material is conspecific with the North 
erican MW, ovularis, Vahl. 
Var. evolutior, C. B. Clarke in Hook. f. Fl. Brit. Ind. vi. 622. Spikelets linear, 
maturing 2-4 nuts.—C. B. Clarke in Durand & Schinz, Conspect. Fl. Afr. v. 593, 
and in Dyer, Fl. Cap. vii. 189. C. sieberianus, var. polyphylla, C. B. Clarke ex 
K. Schum. in Engl. Pfl. Ost-Afr. C. 122 partly. 
Upper Guinea. Upper Senegal, Lécard, 140! 
Wile Land, Uganda, Stuhlmann, 1349! 
Mozamb. Dist. German East Africa: Kilimanjaro, at Marangu, 5000 fe. 
Volkens, 661! 1468! 
Scattered over the area of typical C. sieberianus, and also not rare in Tropical 
erica, 
This is usually a stouter plant than typical C. sieberianus, with broader leaves. 
le spikelets being much longer, the spikes often exceed 3 in. in breadth ; but it is 
United with the type by a fine series of gradations. 
Var. subcomposita, C. B. Clarke in Hook. f. Fl. Brit. Ind. vi. 622. Umbel sub- 
Compound, i.e. at the apex of each ray are 3 subdigitate spikes (the central often 
much longer than the two lateral), supported at the base by somewhat conspicuous 
bracts. —J7. biglumis, Gertn. Fruct. i. 12, t.2, fig.8. Cyperus biglumis, C. B. Clarke 
™ Journ. Linn. Soc. xxi. 199 partly. 
South Central. Congo Free State: Lunda; Kibango, Descamps, 95! 
Also in India, Japan, Malaya, and Oceania. 
This variety only differs very slightly from I. nossibeensis. 
