^Ui} CLVi. CYPERACE-'E (clarke). [Cypevus. 



as ill C. prollfer. — C. B. Clarke in Durand & Schinz, Conspect. Fl. Afr. 

 V. 5(1."), and in Dyer. Fl. Cap. vii. 175. 0. (equaiis, var. /3, Boeck. in 

 Peters, Reise Mossamb. Bot. 538, and in Linn^a, xxxv. 578. 



Mozamb. »lst, Zanzibar, Taylor ! Portuguese East Africa : Mozambique, 

 Peters ! 



Common in South Africa. 



As in so many cases where species of Cyperacece have boen established on a difference 

 in the stems (round or trigonous), it is a matter of taste whether the present plant 

 be arranged as a s]>ecie3 or as a variety of C. prolifer. 



41). C. dichromengeformis, var. major, Boeck. in Flora, 1879,. 

 649. Rhizome woody, nodose. Stems 12-30 in. long, at the top 

 unequally trigonous, almost flattened. Leaves nearly as long as the 

 stem, J- J in. broad, 3-nerved, flat, grass-like. Head 1 of 12-34 spike- 

 lets; bracts 4-5, lowest up to 10 by J in., similar to the leaves. 

 Spikelets h by nearly I in., much flattened, 12-20-flowered, straw- 

 coloured. "Glumes boat-shaped, ovate, obtuse, distant on the rhachilla, 

 in fruit hardly imbricate, obscurely many-striate, on the margins and 

 keel very minutely hairy. Stamens 3 ; anthers almest ciested. Style 

 shorter than the nut; branches 3, long. Nut f the length of the 

 glume, trigonous, shining brown. — Ridley in Trans. Linn. Soc. ser. 2, 

 Bot. ii. 132; C. B. Clarke in Durand & Schinz, Conspect. Fl. Afr. v. 

 55G ; Durand & Schinz, Etudes Fl. Congo, i. 285 ; Rendle in Cat. Afr. 

 PI. Welw. ii. 111. 



Upper Guinea. Togo; Btiettner, 144! 



Nile I^and. British East Africa : Niamniam ; Kulenjo, ScTiweinfurth, 

 3886! 



Iiower auinea. Lower Congo: Kisantu, Gillet, 295! Angola: Pungo 

 Andongo ; banks of the Eivers Cuanza and Cuije, Welwitsch, 6901 ! by springs on 

 the more' lofty rocks of the Prsesidium, Welwitsch, 6902! 7149! Golungo Alto; 

 on the edge of marshes, &c., on the more lofty heights of Queta, rather rare, 

 Welwitsch, 7093 ! 



South Central. Congo Free State : Monbuttu ; Munza, SchweinfuHh, 3461 ! 



The typical C. dichromenfjeformis, Kunth, is from Brazil ; it is a much smaller and 

 weaker plant than the African, with no definite rhizome. The African plant is 

 doubtless closely allied, either as a species or a geographic race. 



50. C. mapanioides, C. B. Clarke in Durand d- Schinz, Conspect. 

 Fl. Afr. 568. Stolon | in. in diam., covered by scales scarcely ^ in. 

 long. Stem 16 in. long, rather stout, acutely and equally triquetrous 

 at the top. Leaves as long as the stem, J in. broad, flat, 3-nerved. 

 Head 1, very dense, of 50 spikelets; bracts 4-5, lowest up to 1 ft. long, 

 similar to the leaves. Spikelets | by J in., moderately compressed, 

 10-16-flowered, pale brown or cinnamon-coloured. Glumes ovate, 

 boat-shaped, very close-packed on the rhachilla, much imbricated in 

 ripe fruit, tip narrow-triangular, hardly acute, nerves many, margins 

 very minutely hairy. Stamens 3 ; connective not produced. Style short ; 

 branches 3, long. "Nut 1 the length of the glume, trigonous, shining- 

 brown.— Durand & Schinz, Etudes Fl. Congo, i. 290 ; De Wild. <fc 

 Durand, 111. Fl. Congo, i. 47, t. 24. 



