i\o4 CLVi. CYPERACEi« (clarke), [Cy^^erKs. 



Upper Guinea. Interior of Senegal, Lecard, 98 1 with capi'.Uiry stem and 

 leaves, Lecard, 16a jurtly I 



STile £and. British East Africa: Jur; Jur Glrattas, Schioeinfurih, 20051 



'itb. C. tenax, Boeck. in Linncea, xxxv. 504. Glabrous. Rhizome 

 very short Stems 4-10 in. long, tufted at the top, trigonous. Leaves 

 § the length of the stem, ^-\ in. broad. Umbel simple, rarely some- 

 wljat compound ; rays 1-7, 0-2 in. long ; bracts overtopping the umbel, 

 similar to the leaves, often slightly distant. Spikes of ?)-lG digitate 

 spikelets, chest nut- black to chestnut-brown, spikelets i-|^ by yV in., 

 compressed, 8-20-flowered, linear with parallel sides. Glumes ovate, 

 obtuse, boat-shaped, hard, often shining. Stamens 3. Style much 

 shorter than the nut ; branches i), linear, long. Nut J-4 the length of 

 the glume, trigonous, narrowly ellipsoid, finally black. — C. B. Clarlve in 

 Durand & Schinz, Conspect. Fl. Afr. v. 578, and in Dyer, Fl. Cap. vii. 

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

 Etudes Fl. Congo, i. 293; Rendle in Cat. Afr. PI. Welw. ii. 111. 

 C. Grantii^ Boeck. ex Oliver in Trans. Linn. Soc. xxix. 1G4. C. 

 (ictinostachys and C. andongensis, Ridley in Trans. Linn. Soc. ser. 2, 

 Bot. ii. 140, and C. sabulicolus, Ridley, I.e. 1P>G. C. andongensis, Rendlo 

 in Cat. Afr. PL Welw. ii. 111. C.monroviensis, Boeck. in Engl. Jahrb. 

 V. DO, and in Engl. Gazelle Reise, Bot. 14. Cyperus, sp. n. 15, T. Thorns, 

 in Speke, Nile, Append. 654. 



Upper Guinea. Liberia : Monrovia, Naumann (ex BoecJceler). 



Wile Iiand. British Ea.st Africa ; M^^axdm, Seott-JElliot, 7494! Rabai Hills 

 and Tsimba (Shimba) Mountains, near Mombasa, Taylor ! 



Iiower Guinea. Lower Congo : Lntete, 2000 ft., Hens, 360 partly ! Kisantn, 

 GiUeL, 1584 ! Angola : Ambriz, Welwitsch, 7038 ! Barra do Bengo, Welwitsch, 

 7049! Pungo Andongo, 3500 ft., Welwitsch, 6794! 6928! 6929! 6931! Huilla, 

 5000 ft., Welwitsch, 6866 ! 6874 ! River Nene, Newton, 21 ! 



AKozamb. Dist. Zanzibar, Taylor ! Kuntze, 304 ! German East Africa : 

 Usambara ; Tnnga, Hoist, 2034a ! Unyamwezi ; near Tabora, 3800 ft., Spelce Sf 

 Grant! British Central Africa : Nyasaland, jBwcAawaw, 1439! Rhodesia; Leshumo 

 Valley, Holuh ! 



Also in Natal and the Transvaal. 



The spikelets merely vary a good deal in length in this species ; I sec no other 

 ground for the variety of names given it. 



36. C. Hensii, Durand d- Schinz, Mudes FL Congo, i. 289. Glabrous. 

 Stems 16 in. long, decumbent at the base (not annual), at the top 

 -^ in. in diam., rounded. Leaves J the length of the stem, | in. wide, 

 inrolled when dry ; sheaths torn, scarious, red-brown. Umbel simple, 

 contracted ; rays 1-6, 0-J in. long, bracts 4-5, up to 2i in. long, 

 similar to the leaves, dilated at the base. Spikelets 12-20 to a spike, 

 digitate, J by ^ in., compressed, pale brown, 16-24-flowered, with 

 parallel sides ; rhachilla somewhat zigzag, with narrow hyaline wings. 

 Glumes close-packed, ovate, obtuse, nerved only on the keel. Style 

 hardly any ; branches 3, linear, hardly longer than the nut. Nut 



