366 CLVI. CYPERACEE (CLARKE). [ Cyperus. 
Spikelets large, clustered, suberect.—C. B, Clarke in Dyer, Fl. Cap, vii. 182, 
C. tuberosus, Boeck. in Linnea, xxxvi. 285 partly (nearly all the African examples). 
C. fenzelianus, K. Schum. in Engl. Pfl. Ost-Afr. C. 120. 
Mozamb. Dist. Zanzibar, Hildebrandt, 1070! German East Africa: 
Usambara ; Tanga, Holst, 2032! 
Also in South Africa and the Mascarene Islands, 
Var. spadiceus, Boeck. in Linnea, 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 & Schinz, Conspect. Fl. Afr. v. 575; Engl. Hochge- 
birgsfl. Trop. Afr.142. C. rotundus, Hochst. in Flora, 1841, i. Intell. 20; A. Rich. Tent. 
Fl. Abyss. ii. 482; Oliver in Trans. Linn. Soc. ser. 2, Bot, ii. 353, forma an 
C. adoensis ? 
Nile Land. Kordofan, Pfund! Abyssinia: Wojerat Province, Petit! near 
Adowa, Schimper, 370! Jemla, Steudner, 213! Begemeder Province, Schimper, 
546! 1291! 1822! 1379! 1555! British East Africa: Ruwenzori 5300 ft., Scott- 
Elliot, 7590! Kamasia, Gregory, 63! Taita; Ndi Mountain, 5300 ft., Scott-Elliot, 
‘6259! 
Mozamb. Dist. Zanzibar, Taylor! German East Africa: Usambara; Kwa 
Mshuza, Holst, 9024! Karagwe, Stuhlmann, 1751! British Central Africa 
Nyasaland ; Mount Zomba, 4000-6000 ft., Whyte / 
101. C. longus, Linn. Sp. Pl. ed. 2, 67, not herd. Linn. Riizome 
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 
(. rotundus.—Kunth, Enum. ii. 60; Boeck. in Linnea, xxxvi. 279, 
excl. var. 3, e, 3,7; C. B. Clarke in Hook. f. Fl. Brit. Ind. vi. 614, 
Durand & Schinz, Conspect. Fl. Afr. v. 567, in Bull. Herb. Boiss. 1v. 
Append. iii. 30, and in Dyer, Fl. Cap. vii..182; K. Schum. in Engl. 
Pal. Ost-Afr. C. 120. 
Throughout Tropical Africa (ex K. Schumann, |.c.). 
Also in Europe, North Africa, Central Asia. 
Var. tenuiflorus, Boeck. in Linnea, 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, Pl. Welw. ii. 116. C. tenuiflorus, 
Rottb. Desc. et Ic. 30, t. 14, fig. 1. C. badius, Desfont. Fl, Atlant. i. 45, t. 7, fig. 2. 
C. Volkensii, K. Schum. in Volkens, Exsicc. 1675. 
Lower Guinea. Lower Congo: Ponta da Lenha (ex Boeckeler). Angola: 
Mossamedes ; borders of sugar plantations, Welwitsch, 6886! Huilla; Humpata, 
Newton, 23! 
Mozamb. Dist. 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 referred to Cop. 
Jongus, Linn., or any variety of it; and I have only seen 3 examples from Tropica 
Africa which I refer to the var. tenuiflora. As K. Schumann finds C. longus ™ a 
great number of “areas” of Tropical Africa, I infer that he places in Cc. 
many plants which I have placed elsewhere. The series of species from C. rotundus 
down to C. tuberosus are too close together. 
