292 CLVi. CYPERACE^ (clarke). [^Pycreiis. 



transversely muriculate. — Rendle in Cat. Afr. PI. Welw. ii. 107. 

 Cyperus pauper, A. Rich. Tent. FI. Abyss, ii. 478 (but erroneously 

 placed in Eu-Cyperus) ; Boeck. in Linnsea, xxxv. 451 ; Ridley in Trans. 

 Linn. Soc. ser. 2, Bot. ii. 126; K. Schum". in Engl. Hochgebirgsfl, 

 Trop. Afr. 138. C. intermedius, var. tenuis, Boeck. in Linnsea, xxxv. 

 451. 



17ile Xiand. Abyssinia : Sana; in marshes on the mountain plain of Walcha, 

 Schimper, 1602 ! Shireh province. Petit ! Begemeder, Schimper, 1311 ! 



Ziower Guinea. Angola : Ambaca ; borders of flooded fields between the River 

 Caringa and Lake Canguele Caiiganga, Welwitsch, 7069 ! 



A species of Fimhristylis is mixed with Schimper, 1602, and it is partly from the 

 mixture of plants that t»his species has been so strangely described ; Steudel (Syn. PI, 

 Olum. ii. 5) says tK it the stems when young are patently hairy, when old, glabrous. 



G. P. nigricans, C, B. Clarke in Durand d- Schinz, Conspect. Fl, 

 Afr. V. 539. Rhizome seen oblique, woody, short; stolons sometimes 

 present (fide Boeckeler). Stems 8-24 in. long, slender ; basal sheaths 

 long, brown, stout, apparently thickening the stems. Leaves often 

 J the length of the stem, yV"^ ^^- broad. Head 1, of 3-11 black 

 (rarely dark-brown) sessile spikelets ; bracts 2-3, lowest 3-4 in. long, 

 similar to the leaves. Spikelets attaining J by 4 in. (sometimes only f 

 these dimensions), compressed, narrowed at each end, 10-20-flowered. 

 Glumes close-packed, ovate, obtuse, inflated ; keel green. Nut f the 

 length of the glume, oblong or somewhat obovoid, black ; outermost 

 cells (on the shoulders of the nut) elliptic. — C. B. Clarke in Trans. 

 Linn. Soc. ser. 2, Bot. iv. 53. C y per v,8 nigricans, Steud. in Flora, 1842, 

 584, and Syn. PL Glum. ii. 12 ; A. Rich. Tent. Fl. Abyss, ii. 476 ; 

 Boeck. in Linnsea, xxxv. 462 ; 0. B. Clarke in Journ. Linn. Soc. xxi. 

 42; K. Schum. in Engl. Pfl. Ost-Afr. C. 117; Engl. Hochgebirgsfl. 

 Trop. Afr. 139. 



DTlIe Xiand. Abyssinia : Samen ; swamps near Enjedcap, Schimper, 1373 ! 

 Begemeder ; Gafat, Schimper, 1286 1 British East Africa : Nandi, by streams, 

 7000-8000 ft., Scott-JElliott, 6963 ! 



X^ozamb. Blst. German East Africa : Kilimanjaro, 10500 ft., Volkens, 2014! 

 British Central Africa; Nyasaland ; Mount Malosa, 4000-6000 ft., Whyte I Mount 

 Zomba, 4000-6000 ft., Whyte I Mount Mlanji, 6000 ft., Whyte ! Shire Highlands, 

 Buchanan, 28 ! and without precise locality, Buchanan, 990 ! 1454 ! 



The nut is reticulated rather than muricated ; the species is near P. umhrosuSf 



Nees. 



7. P. subtrigonus, C. B. Clarke in Durand & Schinz, Conspect. Fl, 

 Afr. V. 542. Rhizome descending, seen Ij in. long, j^ in. thick. 

 Stems 6-14 in. long. Leaves f the length of the stem, ^ in. broad. 

 Spike solitary, of 12-30 spikelets; bracts 3, lowest 3 in. long, similar 

 to the leaves. Spikelets J-f by ^ in., compressed, yellow-brown, 

 20-36-flowered, with parallel sides. Glumes ovate, obtuse, keeled. 

 Nut J the length of the glume, obovoid, with a protuberance on each 

 side so that it is almost trigonous ; style-branches 2, linear, in a plane 

 passing through the axis of the spikelet ; outermost cells loosely elliptic, 



