Cyperus. | CLYI. CYPERACEE (CLARKE). 357 
round or nearly so, showing (at least when dry, owing to shrinkage of 
the pith) transverse-rings $-14 in. apart. Leaves 0, or the green 
termination of the top sheath rarely 1 in. long. Umbel 4-3 in. in 
diam., compound or smaller (sometimes hardly 1 in. in diam.) with few 
spikelets; bracts 1-} in. long, elliptic-lanceolate. Spikes of 3-4 
spikelets, but several congested into 1 apparent spike of numerous 
spikelets. Spikelets 1-1 by .),—-74, in., 12—-50-flowered, linear, straw- 
coloured or dirty-brown. Glumes obtuse, scarcely keeled. Nut 2 the 
length of the glume, oblong-ellipsoid, black; style-branches 3, long, 
little exserted——Kunth, Enum. ii. 53; Barker Webb in Hook. Niger 
Fl. 182; Boeck. in Linnea, xxxvi. 274; T. Thoms. in Speke, Nile, 
Append. 653; Oliver in Trans. Linn. Soe. xxix. 165; Ridley in Trans. 
Linn. Soc. ser. 2, Bot. ii. 141 partly ; C. B. Clarke in Hook. f. Fl. Brit. 
Ind. vi. 611, in Durand & Schinz, Conspect. Fl. Afr. v. 548, and in 
Bull. Herb. Boiss. iv. Append. iii. 29; K. Schum. in Engl. Pfl. Ost- 
Afr. C. 120; Schweinf. in Bull. Herb. Boiss. ii. Append. ii. 48, 102; 
Durand & Schinz, Etudes FI. Congo, i. 283; Urban, Symb. Antill. ii. 
33; Rendle in Cat. Afr. Pl. Welw. ii. 117. C. niloticus, Forsk. FI. 
gypt.-Arab. 13; Beauv. Fl. Owar. ii. 63, t. 97, fig. 2. C. fistulosus, 
Ehrenb. ex Boeck. in Linnwea xxxvi. 275. 
Upper Guinea. Senegal; Sieber, 101! Dollinger, 58! Heudelot, 522! 
Cape Verd Islands: St, Antonio, Lowe! St. Nicolao, Lowe! Bolle! St. lago, 
Brunner! Gambia, Heudelot, 344! Sierra Leone: River Bagru, Mann, 894! 
Gold Coast: Acera 3 Buettner! Ashanti, Bowdich ! Niger Territory : Old Calabar, 
Robb! Contluence of the River Quorra (Niger) and the River Tchadda (Benve), 
Barter ! Cameroons, Buchholz ! Fernando Po, Barter ! 
_ Nile Land. iritrea: Ainsaba Valley near Keren, Sfeudzer, 905 ! Habab 
district, 5500 ft., Hildebrandt, 361B ! Somaliland, Keller, 92! 95! British East 
Africa: banks of the White Nile, Petherick! Speke & Grant! east side of the 
Albert Edward Nyanza, Scott-Elliot, 8051! Mombasa, Taylor ! 
Lower Guinea. (Gaboon: Salowe, Soyaux, 273! Lower Congo, Smith, 14! 
26! Angola : Congo; edges of lakes at Quizembo, Welwitsch, 7034! Ambriz, 
Monteiro ! Teolo e Bengo ; edges of Lagoa da Funda, Welwitsch, 7051! 7089; 
ngo Andongo; banks of the River Cuanza, Welwitsch, 6936 ! 
South Central. Congo Free State; Monbuttu ; Munza, Schweinfurth, 3446 ! 
hy the River Sankuru, Demeuse ! Mzona, Descamps ! Lunda, Pogge, 1586! 
Mozamb. Dist. Zanzibar, Hildebrandt, 1058! Schmidt, 65! German East 
Tea ; Usambara ; Masheua, Holst, 3521! Kilimanjaro ; Lake Yipe, 2500 ft., 
Volkens, 2372! 2387! Portuguese East Africa: Mozambique, Peters, 8! Luabo 
River, Kirz / British Central Africa: Nyasaland; Elephant Marsh in the Shire 
Valley, Scott / Ngamiland; Lake River, Lugard, 12! 
In the tropical and warm regions of both hemispheres, 
85, C, corymbosus, otib. Descr. et Ic. 42, t. 7, fig. +. Stem at 
the top round, or round trigonous, not (or very obscurely) transversely 
Septate when dry. Leaves (i.e. the green portion) attaining sometumes 
® in. in length, but usually very short or hardly any. Bracts usually 
? the height of the umbel, but sometimes overtopping it. Spikes 
&s clustered ; otherwise as (. articulatus.—C. B. Clarke in Hook. f. 
Fl. Brit. Ind. vi. 612,in Durand & Schinz, Conspect. Fl. Afr. v. 994, 
