Cyperus. | CLVI. CYPERACEA (CLARKE). 347 
often with a purple spot on each side; rhachilla with oblong wings. 
Style shorter than the nut; branches 3, linear, hardly exserted. Nut 
2 the length of the glume, ellipsoid or obovoid, trigonous, ashy-black.— 
Schumach. Beskr. Guin. Pl. 37; Kunth, Enum. ii. 63; Benth. in Hook. 
Niger F]. 550; Boeck. in Linnea, xxxvi. 292; Ridley in Trans. Linn. 
Soc. ser. 2, Bot. ii, 139 partly; C. B. Clarke in Journ. Linn. Soe. xxi. 
183, and in Durand & Schinz, Conspect. Fl. Afr. v. 577; Henriques 
in Bolet. Soc. Brot. v. 208; De Wild. & Durand in Comptes-rendus 
Soc. bot. Belg. xxxvi. 89; K. Schum. in Engl. Pfl. Ost-Afr. C. 120; 
Durand & Schinz, Etudes FI. Congo, i. 293; Urban, Symb. Antill. ii. 
30; Rendle in Cat. Afr. Pl. Welw. ii. 117. CO. pustulatus, Ridley 
in ‘Trans. Linn. Soc. ser. 2, Bot. ii. 128 partly. 
: Upper Guinea. Sierra Leone, Don! Vogel, 33! Welwitsch, 7056. Liberia: 
Grand Bassa, Ansell! Gold Coast : Cape Coast Castle, Don ! Dahomey, Newton, 27 ! 
River Niger; at Attah, Togel ! okaja district, Richardson, 1! and without precise 
locality, Baikie! Old Calabar, Robb! Fernando Po, Barter / Vogel, 13! 
Lower Guinea. Island of St. Thomas, up to 2800 ft., Moller in Flor. Afr. 
Exsice, Conimbric., 120! Annobon Island, Burton! Gaboon: Munda; Sibange 
Farm, Soyaux, 3254! Lower Congo: Lutete and Stanley Pool, 1000 ft., Hens, B, 
22! 41! 99! 267! Leopoldville, Luja, 12! Angola: Loanda, Welwitsch, 7102 
Partly! Golungo Alto; at the foot of Mount Cungulungulo, Welwitsch, 7070! near 
Rodrigo’s house, rare, Welwitsch, 7090 ! 
Mozamb. Dist. Portuguese East Africa: Lower Zambesi; Tete, Kirk ! 
: _Var, tenuior, ©. B. Clarke in Durand & Schinz, Conspect. Fl. Afr. v. 5 
Spikelets 1-4, subdigitate on the rays of a simple umbel, about 10-flowered. 
bo 
dé. 
Upper Guinea. Senegambia, Heudelot, 485! 
This much resembles the slender African form of C. Zollingeri ; but it appears 
‘nnual, and the bracts are larger and more flaccid than those of C. Zollingeri. 
_ 69. ©. compressus, Linn. Sp. Pl. 46. Annual, glabrous, green. 
Stems 4-16 in. long, tufted. Leaves often 3 the length of the stem, 
$ (rarely 1) in. broad. Umbel simple (or appearing nearly so), strag- 
gling ; lowest bract usually longer than the umbel, similar to the 
leaves, Spikelets 3-10 together, shortly spicate, or almost clustered, 
3-1 by 4-} in., very much compressed, green or when ripe yellowish, 
440-flowered. Glumes_ ovate, conspicuously many-striate, closely 
packed, keel very sharp and shortly excurrent into a mucro. Nut 4 
the length of the glume, broadly obovoid, very acutely triquetrous 
(so that the faces are concave), black. Style shorter than the nut; 
ranches 3, hardly exserted.—Kunth, Enum. ii. 23 ; Boeck. in Linnea, 
Xxxv. 517; ©. B. Clarke in Hook. f. Fl. Brit. Ind. vi. 605, and in 
Durand & Schinz, Conspect. Fl. Afr. v. 553; Ridley in Trans. Linn. 
0c. ser. 2, Bot. ii. 132; K. Schum. in Engl. Pf. Ost-Afr. C. 118; 
Urban, Symb. Antill. ii. 31; Rendle in Cat. Afr. Pl. Welw. ii. 111. 
Upper Guinea. Senegal, Leprieur,4! Sierra Leone: at the foot of Sugar 
Loaf Mountain, Welwitsch, 7057! Old Calabar, Robb! 
Nile Land. British East Africa: Mombasa; Taylor! 
