Mariscus.] clvi. cyperace^ (clarke). 389 



in Journ. Linn. Soc. xxi. 201. C. ovidaris, Boeck. in Linnjea, xxxvi. 

 S7G, var. a partly, not of Torrey. C. cylindrostachys, Boeck. in Linnsea, 

 xxxvi. 388 mainly ; Schweinf. in Bull. Herb. Boiss. ii. Append, ii. 49 ?, 

 104 ? C. steudeliaiiuSy Boeck. in Engl. Jahrb. v. 91. C. sieberianuSj 

 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. 

 213G cited). 



Upper Cruinea. French Guinea : Farana and Dantilia, Scott-Elliot, 5361a ! 

 Togo, Kling, 73 ! Cameroons : Yaunde, Zenker, 1503 ! 



Wile Iiand. Eritrea : Ginda, 3200 ft., Schweinfurth Sf Riva, 2136 ! British 

 East Africa: Kuwenzori, 5000 ft., Scott-EUiof^ 7617! Undusuma, Stuhlmann, 

 2901 ! 



JmO-wbt Guinea. Lower Congo : Stanley Pool, Hens, 377 ! above Stanley 

 Pool, Johnston! Angola: Malauge, Pogge, 459! 460! 461! Buchner, 12! San 

 Salvador, Biiettner, 13 ! 



X«Eozaiiib. X>ist. (iennan East Africa : Karagwc ; Kafuro, 4500 ft., Stuhl. 

 mann, 1881b! liritish Central Africa : Nyasaland ; Kondowe to Karonga, Whyte ! 

 Shire Highlands, Buchanan, 22 ! Blantyre, Scott ! Mount Malosa, Whyte ! Mount 

 Zomba, 4000-6000 ft., Whyte ! Naniasi, Cameron, 16! and without precise locality, 

 Buchanan, 1427 ! Xganiiland ; Kwebe Hills, 3300 ft., Mrs. Lugard, 142 ! 



Also in South Africa, the Mascarene Island;*, 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. M. Jlavus)^ 

 being, in the opinion of competent botanists^ only forms of M. sieberiatius aro 

 described shortly as to the chief points wherein they differ from 31. sieberianus. Tho 

 synonymy is guess-work, except where the actual plants have been seen. 1 cannot 

 agree with Boeckeler that any of the African material is conspecific with the North 

 American M. ovular is, 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 Cruinea. tapper Senegal, Lecard, 140! 



irile Iiand. Uganda, Stuhlmann, 1349 ! 



mozaxal). X>ist. German East Africa : Kilimanjaro, at Marangu, 5000 ft., 

 Volkens, 661 ! 1468 ! 



Scattered over the area of typical C. sieberianus, and also not rare in Tropical 

 America. 



This is usually a stouter plant than typical C. sieberianus, with broader leaves. 

 The spikelets being much longer, the spikes often exceed -| in. in breadth ; but it is 

 united with the type by a tine 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 subdip;itate spikes (the central often 

 much longer than the two lateral), supported at the base by somewhat conspicuous 

 bracts. — M. biglumis, Gartn. Fruct. i. 12, t. 2, fig, 8. Cyperus biglumi-s, C. B. Clarke 

 in Journ. Linn. Soc. xxi. 199 partly. 



South Central. Congo Free State: Luuda; Kibango. Descamps, 95! 



Also in India, .Japan, Malaya, and Oceania. 



This variety only differs very slightly from M. nossibeensis. 



