452 CLVi. CYPERACE^ (clarke). [Scirpus. 



convex, narrowly obovoid, smooth ; in the lower portion thickened by 

 corky ceils; the apex hardened into a conic beak not separated by a 

 constriction from the nut. — Benth. in Benth. et Hook. f. Gen. PI. iii. 

 1051 ; Ridley in Trans. Linn. Soc. ser. 2, Bot. ii. 157 ; C. B. Clarke in 

 Durand & Schinz, Conspect. Fl. Afr. v. 620, and in Bull. Herb. Boiss. 

 iv. Append, iii. 32 ; K. Schum. in Engl. Pfl. Ost-Afr. C. 126. Urban, 

 Symb. Antill. ii. 92; Rendle in Cat. Afr. PI. Welw. ii. 127. Cypefus 

 hhpharoleptos, Steud. Syn. Pi. Glum. ii. 28. Courtoisia olivacea, Boeck. 

 in Flora, 1861, 331. Anospor-um cubense, Boeck. in Linnaea, xxxvi. 

 413, and in Flora, 1879, 561, 1881, 77. A. Schinzii, Boeck. in 

 Verhandl. Bot. Ver. Brandenb. xxix. 46. Isolepis echinocephala, 

 Oliver in Trans. Linn. Soc. xxix. 167 t. 107. Grepidocarpus cuhensis, 

 Klotzsch ex Boeckeler in Linnaea, xxxvi. 414. 



Upper Cruinea. Senegal, Leprieur ! Perrottet ! Niger Territory : Nupe, 

 Barter, 1068 ! 



Wile Xiand. - Banks of the Nile at Khartoom, Speke Sf Grant ! White Nile, 

 Broicnell ! Schweinfurth, 1109 ! Gazelle River, Schweinfurth, 1150 ! Banks of the 

 Nile in Unyoro, Speke Sf Grant ! 



"SmO-w^t CrUinea. Angola : Pungo Andongo ; in marshes near Umbilla, on the 

 River Cuanza, Welwitsch, 6848 ! Barra do Dande ; bank of the River Dande, near 

 Bombo, Wehvitsch, 6994! German South-west Africa : Amboland, Schinz, 3781 



Also common in America, from Mexico to Paraguay. 



11. S. supmus, Linn. Sp. PI. ed. 2, 73. A glabrous annual. Stems 

 tufted, 2-12 in. long, terete, with no node between the base and the 

 single head (but see var. /3). Leaves very short, usually less than 1 in. 

 long. Spikelets 1-7 in the head, \-\ in. long, ellipsoid or oblong, 

 dusky greenish, obscurely angular by reason of the strongly keeled 

 glumes; lowest bract as though a continuation of the stem, 1-6 in. 

 long. Glumes ovate, acute, entire at the tip. Hypogynous bristles 0. 

 Style linear ; branches 3, rarely 2. Nut obo void-truncate, triquetrous, 

 black, with strong transverse wavy lines. — Boeck. in Linnaea, xxxvi. 

 699 excl. var. /3, y ; C. B. Clarke in Hook. f. Fl. Brit. Ind. vi. 655, in 

 Durand & Schinz, Conspect. Fl. Afr. v. 632 and in Bull. Herb. Boiss. iv. 

 Append, iii. 33; K. Schum. in Engl. Pfl. Ost-Afr. C. 126. Isolepi& 

 &upi7ia, R. Br. Prod. 221 ; Kunth, Enum. ii. 196 ; Benth. in Hook. 

 Niger Fl. 553 ; A. Bich. Tent. Fl. Abyss, ii. 500. /. polyc'olea, Steud. 

 Syn. PI. Glum. ii. 95. / proxima and /. similliraa, Steud. Syn. PI. 

 Glum. ii. 95. /. pentasticka, Boeck. in Flora, 1859, 446, and in Peters, 

 Reise Mossamb. Bot. 544. Scirpus polycoleics, Notaris, Ind. Sem. 

 Hort. Genuen. 1847. 



upper Cruinea. Senegal, Delievre ! 



"Nike Xiand. Darfur, Purdy, 44 ! Abyssinia, Quartin-Dillon Sf Fetit ! 



Xiomrer Guinea. Angola : Cunene River, Johnston I banks of the River 

 Caculo, Newton! 



XV£ozamb. Sist^ Zanzibar, Peters ! 



Including varieties, this species extends from Europe to the Cape and Australia; 

 being abundant in the Mediterranean region and in South-east Asia. The var.. 

 BaUii is frequent in North America. 



