36(J CLVi. CYPERACE^ (clarke). \Cyperus. 



iJpikelets large, clustered, suberect. — C. B. Clarke in Dyer, Fl. Cap. vii. 182. 

 C. tuherosus, Boeck. in LinntBa, xxxvi. 285- partly (nearly all the African examples). 

 C.fenzelianiis, K. Sclmm. in Engl. Pfl. Ost-Afr. C. 120. 



Mozamb. Sist. Zanzibar, Rildehrandt, 1070 ! German East Africa : 

 Usambara ; Tanga, Hoist, 2032 ! 



Also in South Africa and the Mascarene Islands. 



Var. spadiceus, Boeck. in Linnaea, xxxvi, 284. Stem usually tall, often scabrous 

 at the top. Spikelets strongly compressed, shining, hard, chestnut-red or chestnut- 

 black.— C. B. Clarke in Durand & Sohinz, Conspect. Fl. Afr. v. 575; Engl. Hochge- 

 birgsfi. Trop. Afr. 142. C. rotundas, Hochst. in Flora, 1841, i. Intell. 20; A. Rich. Tent. 

 Fl. Abyss, ii. 482; Oliver in Trans. Linn. Soc. ser. 2, Bot. ii. 353, fonna an 

 C. adoensis ? 



nrile I>and. Kordoia,n, Pf and ! Abyssinia: Wojerat Province, Petit! near 

 Adowa, Schimper, 370 ! Jemla, Stendner, 213 ! Begemeder Province, ScJdmper, 

 546 ! 1291 ! 1322 ! 1379 ! 1555 ! British East Africa : Rmvenzori 5300 ft., Scott- 

 miiot, 7590*! Kamasia, Gregory, 63 ! Taita ; Ndi Mountain, 5300 ft., Scott-ElUof, 

 6259 ! 



ncozamb. I>lst. Zanzibar, Taylor! German East Afi'ica : Usambara; Kwa 

 Mshuza, Hoist, 9024 ! Karagwe, Stuhlmann, 1751 ! British Central Africa 

 Xyasaland ; Mount Zomba, 4000-6000 ft., Whyte ! 



101. C. longus, Linn. Sp. PI. ed. 2, 07, 7iot herb. Linn. E-liizome 

 stout, creeping. Stem at the base oblique or decumbent, not much 

 thickened, with a contraction under the bulb into the rhizome (as usual 

 in C. rotundus). Umbel compound, straggling, otherwise nearly as 

 {J. rotundus. — Kunth, Enum. ii. GO ; Boeck. in Linnsea, xxxvi. 27 D, 

 excl. var. /3, e, 3, t/ ; C. B. Clarke in Hook. f. Fl. Brit. Ind. vi. 614, in 

 Durand & Schinz, Conspect. Fl. Afr. v. 567, in Bull. Herb. Bois?. iv. 

 Append, iii. 30, and in Dyer, Fl. Cap. vii. 182 ; K. Schum. in Engl. 

 Pfl. Ost-Afr. C. 120. 



Throughout Tropical Africa (ex K. Schumann, I.e.). 



Also in Europe, North Africa, Central Asia. 



Var. tenuijlorus, Boeck. in Linnaea, xxxvi. 281. Rays of the umbel less unequal. 

 Spikes denser. Spikelets neater, more deeply coloured, often brown or almost chest- 

 nut. — C. B. Clarke in Durand & Schinz, Conspect. Fl. Afr. v. 567 ; Boeck. in Engl. 

 Gazelle Reise, Bot. 15; Rendle in Cat. Afr. PI. Welw. ii. 116. C. temiifloriis, 

 Rottb. Desc. et Ic. 30, t. 14, fig. 1. C. hadins, Desfont. Fl. Atlant. i. 45, t. 7, fig. 2. 

 C. Volkensii, K. Schum. in Volkens, Exsicc. 1675. 



ILo'wer Culnea. Lower Congo : Ponta da Lenha (ex BoecJceler). Angola : 

 iVEossamedes ; borders of sugar plantations, Weltvitsch, 6886 ! Huilla ; Humi)ata, 

 Jjfexvton, 23 ! 



mozamb. Bist. German East Africa : Kilimanjaro ; Maduhama, 3300 ft., 

 Volkens, 1675 ! British Central Africa : Boruma, on the Zambesi, Menyharth, 519 ! 

 1067! 



Plentiful in Europe, North Africa and Extra-tropical South Africa. 



There is no example at Kew from Tropical Africa which is refen-ed to Cyp. 

 longus, Linn., or any variety of it ; and 1 have only seen 3 examples from Tropical 

 Africa which 1 refer to the var. tenuifiora. As K. Schumann finds C. longus in a 

 great number of " areas " of Tropical Africa, 1 infer that he places in C. longus 

 many plants which I have placed elsewhere. The series of species from C. rotundus 

 down to C. tuherosus are too close together. 



