Cyperus.'] clvi. cyperace^ (clarke). :^71 



— C. B. Clarke in Hook, f . Fl. Brit. lud, vi. 617, and in Durand & Schinz, Consjxict. 

 Fl. Afr. V. 561 ; Reudle in Cat- Afr. PI. Welw. ii. 119. C. dives, Delile, Fl. Egypto, 

 5, t. 4, fig. 3; Kunth, Enum. ii. 71; Hochst. in Flora, 1841, i. Intell. 20; Steud. in 

 Flora, 1842, 595; A. Uich. Tent. Fl. A!)yss. ii. 480; C. B. Clarke in Journ. Linn. 

 Soc. XX. 293; Ridley in Trans. Linn. Soc. ser. 2, Bot. ii. 142. C. alojyecuroides, 

 Presl in Oken, Isis, xxi. (1828) 271 ; lioeck. in Linnaea, xxxvi. 322 (var. a only) ; 

 Oliver in Trans. Linn. Soc. xxix. 166; Volk. Kilimand. 28; Engl. Hochgebirgsfl . 

 Tx'op. Afr. 143; Schweinf. in Bull. Herb. Boiss. ii. Append, ii. 49, not of Bottl) ; 

 K. Schum. in Engl. Pfl. Ost-Afr. C. 121. 



Upper G-uinea. Cape Verd ; Perrottet. 



Iffile IianU. Eritrea: Goura, 6800 ft., Schweinf urth (^- Rica, 920! Abyssinia: 

 Tigre; streams near Adowa, Quartin-D>llu7i S^ Petit! Schimper, 30! Modat; by 

 streams in Agnar Valley, Schimper^ 1101 ! and without precise locality, Schimper, 

 136! 547! British East Africa: Niamniam; Nabanibisso River, Schioeiv- 

 fiirth, 3727! Ruwenzori; Seraliki Valley, Scott- Elliot, 8052! Buddu, Stuhlmann, 

 1187! Lake Baringo, Oregory^ 57! Kangaga, Taylor, 32! Ukamba; Kiboko, in 

 marshy rivers, Scott-Elliot, 2333 ! 



J^ower Guinea. Angola: Golungo Alto; by streams near Sange, Welivitseh, 

 7091! Pungo Andongo; in marshy pla<es between Condo and Quisonde, Welioitsch. 

 6939 ! 



Soutb Central. Congo Free State ; Deweore, 10,039 ! 



XlfXozamb. Dist. German East Afri<a : Karagwe; Little Lake Winderniero, 

 Speke ^ Gran*, 480! Kilimanjaro, Tiylor! Usambara ; Muanamata, 2000 ft.. 

 Volkens, 2377 ! Portuguese East Africa : Lower Valley of the River Shire, Meller .' 

 British Centi'al Africa : Nyasaland ; Elephant Marsh, in the Shire Valley, Kirk ' 

 Scott! Lake Nyasa, Scott- Elliot, ^4:14! \ and without precise locality, Bachanav, 

 865 ! Zambesi Valley ; Boruma, Menyharth, 1058. 



Also in Egypt, Syria, Madagascar and India ; but the variety cannot be dis- 

 tinctly separated from the species {exaltalus itself), therefore neither can its area 

 of distribution. 



ill. C. Pethericki, C. B. Clarke in Durand d- Schinz^ Conspect. 

 Fl. Afr. V. 571. Very tall and stout (only the 2 upper feet of stem 

 present). Lowest bract very lonij, § in. broad, very smooth, thick, and 

 tough. Umbel large, compound, with large many-flowered cylindrie 

 spikes. Spikelets nearly J in. long, 36-flowered, pale yellowish -brown. 

 Glumes thin, not strongly keeled, their margins (in the dried state) 

 much incurved ; otherwise as G. exaltatus. 



utile Kand. British East Africa : banks of the Nile in Denka Ten-itory. 

 Petherick ! 



The softer less-keeled glumes, with incurved margins, cause this ])lant to 

 simulate C. alopecuroides, but the styles are all 3-fid, the nuts all acutely trigonous, 

 and I think it may prove only another variety of C. exaltatus. 



112. C. immensuSy C. B. Clarke in Journ. Linn. Soc. xx. 294. 

 Stem at the top J-J in. in diam., acutely trigonous. Lowest bract in 

 some examples up to 1 in. wide. Umbel in the type (Perville, 483) 

 must have exceeded 2 ft. in diam., very dense. Spikelets f by jV in., 

 40-flowered, much compressed, hard, shining, yellow-brown ; wings of 

 the rhachilla falcate, linear-lanceolate, yellow, early caducous. Glumes 

 strongly keeled, strongly mucronate ; otherwise as C. exaltatus. — C. B. 



