382 CLvi. CYPERACEiE (clarke). [Mariscits. 



long as the nut; branches 3, linear. — Cyperus dntreiisis^ Boeck. in 

 Flora, 1879, 556 ; K. Schum. in Engl. Pfl. Ost-Afr. C. 121 {djurensis). 



Wile £and. British East Africa: Jur; Jur Ghattas, Schtveinfurth, 1981 

 Mombasa, Taylor / 



Mozamb. I>ist. Zanzibar, Taylor ! 



Var. qondana, C, B. Clarke in Durand & Scliinz, Conspect. Fl. Afr. v. 586. 

 Stems 12-16 in. long, less thickened at the base. Bracts less dilated at the base. — 

 Cyperus gondamis^ Boeck. Cyp. Novae, i. 3. 



Mozamb. Slst. German East Africa : Karagwe; Bukoba, Siuhlmann, ^Ql \ 

 Unyamwezi ; Gonda (Igonda), Boehm, 67a ! 



These examples are young, and may prove separable from M. diurensis when the 

 fruit is known. 



4. M, firxnipes, 0. B. Clarke. Basal sheaths firm, red-brown, 

 with 20-40 strong ribs. Spikelets 2-3-flowered. Glumes when young 

 thin, with few .obscure ribs and no glands ; otherwise as M. diureiisis. 



Mozamb. I>ist. British Central Africa: Nyasaland; Zomba and Plains, 

 2500-3500 ft., Whyte! 



The base of the stems not seen. 



5. M. rexnotuSy G. B. Clarke in Durand d- Schinz, Conspect. FL Afr. 

 V. 591. Glabrous. Stems 8-16 in. long, slender, at the top trigonous 

 and smooth, at the base oblong-thickened by somewhat-torn leaf- 

 sheaths. Leaves § the length of the stem, y\ in. broad. Head 1, J in. 

 in diam., globose, of 30-40 spikelets, golden-yellow ; bracts 3-2, some- 

 what dilated at the base, similar to the leaves, lower 1-2 in. long. 

 Spikelet 2-flowered, producing 2 (or 1) nuts. Glumes very remote on 

 the rhachilla, oblong-elliptic, very obtuse, thin, 9-13-striate. Stamens 

 3 ; anthers narrow, oblong, muticous, much exserted. Nut f^ the 

 length of the glume, oblong-ellipsoid, trigonous, at the top acuminate. 

 Style long; branches 3, long, much exserted. 



Soutb Central. Congo Free State : River Lavoi (Luvoi), Descamps ! 



The fruit is not ripe and I did not ascertain that the rhachilla disarticulates 

 above the two lowest glumes. The acuminate nut is not like Marisciis : the genus of 

 this plant is thus not certain. 



6. M. maritimus, C. B. Clarke in Journ. Bot. 1896, ^'2Q. 

 Glabrous. Stem 16 in. long, slender, at the top trigonous and smooth, 

 at the base scarcely thickened but with long loose bright-brown striate 

 leaf -sheaths, torn into fibres. Leaves 12 by Jy in., weak. Inflores- 

 cence of 5-6 spikes almost completely fused into 1 ovoid head, | in. in 

 diam., chestnut-red ; bracts 4, similar to the leaves, lowest 3|- in. long. 

 Spikelets \ by yV in., 4-flowered, producing 3 nuts, caducous in one 

 piece above the two lowest empty glumes. Glumes ovate, many- 

 ribbed, neither acute nor keeled. Nut | the length of the glume, 

 oblong, trigonous, red-brown. Style linear, shorter than the nut ; 

 branches 3, linear. 



xrile ]band. British East Africa : on the sands of the seashore at Mambrui 

 (Mombrui), Gregory ! 



