320 CLvi. CYPERACE^ (clarke). [^Cypevus. 



muticous, with many conspicuous striations. Nut J the length of the 

 glume (yet rather large for Cyperus), triquetrous, obovoid, smooth, 

 black ; style shorter than the nut, branches 3, linear. — C. B. Clarke in 

 Durand k Schinz, Conspect. Fl. Afr. v. 552, and in Dyer, Fl. Cap. vii. 

 168; K. Schum. in Engl. Pfl. Ost-Afr. C. 118; Durand & Schinz, 

 Etudes Fl. Congo, i. 284; Kendle in Cat. Afr. Pi. Welw. ii. 112. 

 C. obtusi/l(yi'us, Vahl, Enum. ii. 308 ; Kunth, Enum. ii. 45 ; Boeck. in 

 Linnaea, xxxv. 528, and in Abhandl. naturw. Ver. Bremen, vii. (1880) 

 36; C. B. Clarke in Journ. Linn. Soc. xx. 286, and xxi. 110; Ridley 

 in Trans. Linn. Soc. ser. 2, Bot. ii. 132 ; Schweinf. in Bull. Herb. Boiss. 

 ii. Append, ii. 47, 102. C. ambongensis, Boeck. in Linnaea, xxxviii. 

 361. C. argenteus, Ridley in Trans. Linn. Soc. ser. 2, Bot. ii. 133. 

 C. niveus, var. polyphyllus, Boeck. in Flora, 1879, 550. 



Upper Guinea. Niger River, BaiJcie ! 



M-lle Xiand. Eritrea : Geleb, 6300 ft., Schweinfurth, 1212 ; Ginda, 4000 ft., 

 Schvjeinfurth, 131, 4l5 ; Mount Alamkale , 6000 ft., Schweinfurth, 1639. Somali- 

 land : Darra-As, Miss 'Edith Cole ! Mrs. Lort-Phillips ! Serrut Mountains near 

 Maid, 5200 ft., Hildehrandt, 1477. British East Africa: Jur; A.bu Guroon's Seriba, 

 Schioeinfurth, iii. 187 ! Albert Nyanza, Stuhlmann, 2873 ! Malewa, Gregory, 42 ! 

 Victoria Nyanza, Scott-Mliot, 6477! Nandi, Scott-Elliol, 6894! Rabai Hills, near 

 Mombasa, Taylor ! Mombasa, Wakefield ! 



ZiO-wer Guinea. Lower Congo, Smith, 63 ! Angola : Pungo Andongo ; hills 

 between Candumba and Muta Lucala, 3500 ft., Welwitsch, 6900 ! Huilla, 5000 ft. ; 

 near the Catumba rivulet, Wehoitsch, 6905 ! near Nene, Welwitsch, 6906 ! 



nXozamb. Sist. Zanzibar, Hildehrandt, 1064 ! Linck, 117 ! Schmidt, 67 ! 

 German East Africa: Mafia Island, Bartle Frere : Usambara; Tanga^ Volkens, 

 151! Meru Mountain, 2400 ft.. Volkens, 1644! Usaramo; Kagehi, Fischer, 631! 

 and without precise locality, Sttihlmann, 900 ! 3434 ! British Central Africa : 

 Urungu; Fwambo, 5200 ft., Niitt ! Nyasaland; Naraasi, near Zomba, Cameron, 94 ! 

 and without precise locality, Buchanan, 23 ! 393 ! Matabeleland, Elliott !. 



Abundant also in South Africa and the Mascarene Islands. 



This abundant species varies mucli in size, also in the breadth of the spikelets r 

 the young spikelets are much less compressed and look different from the ripe ones. 

 It is possible to subdivide pei'haps the material here collected ; but it must be noted 

 (1) that the variety and species which follow are very, near C. compactus, (2) that 

 none of the material should be referred (as by Boeckeler andl others) to the Indian 

 C. niveus, Retz., which has much thinner glumes, and can be definitely distinguished, 

 though nearly allied. 



Var. flavissimus, C. B, Clarke in Durand & Schinz, Conspect. Fl. Afr. v. 552. 

 Spikelets golden-yellow, or yellowish or brown. — C. B. Clarke in Dyer, Fl. Cap. vii. 

 168; Rendle in Cat. Afr, Pi. Welw. ii. 112. C. ohtusiflorus., vav. flavissimus, Boeck. 

 in Linnsea, xxxv. 529 ; Ridley in Trans. Linn. Soc. ser. 2, Bot. ii. 132. C. flavissimus, 

 Schrad. Anal. Fl. Cap. 5, t. 2, fig. 2. C. sphcerocejyhalus, Vahl, Enum. ii. 310; 

 Kunth, Enum. ii. 45 ; T. Thorns, in Speke, Nile, Append. 654 ; Oliver in Trans. Linn. 

 Soc. xxix. 164, t. 108, fig. A ; K. Schum. in Engl. Pfi. Ost-Afr. C. 118. 



XiOwer Guinea. Angola : Huilla; in the drier pastures near Lopollo, 5000ft., 

 Welwitsch, 6876 ! 



IMEozamb. Blst. German East Africa : Jiwa-la-Mkoa, in the Mgunda 

 Mkhali, 4488 ft., Speke Sf Grant I 



Abundant in South Africa. 



I concur with Boeckeler in thinking there is no difference in structure between 



I 



