398 CLVi. CYPERACE^ (clarke). [ATarisciis. 



Lowest empty glume lanceolate, hardly mucronate ; each joint of the 

 rhachilla about half the length of the glume ; rhachilla appearing 

 slit^htly fiexuose. Nut-bearing glume? remote, elliptic-oblong, erect- 

 adpressed even in ripe fruit, obtuse, with 7-9 nerves, green (hardly 

 keeled) on the back, a dusky red or yellow on the sides. Nut | 

 the length of the glume, linear-oblong, chestnut-black ; style 3-fid. — 

 C. B. Clarke in Durand & Schinz, Conspect. Fl. Afr. v. 588 : Durand 

 & Schinz, Etudes Fl. Congo, i. 295 ; Urban, Symb. Fl. Antill. ii. 50. 

 Cyperus caracasanus^ Boeck. in Linnsea, xxxvi. 358. C. umhellatus, 

 Henriques in Bolet. Soc. Brot. v. 209 partly. 



Upper Guinea. River Niger, Marshall ! Old Calabar, Holland, 48 ! Cross 

 River, Johnston ! Ciiuneroons : BiitHnga, Bates, 97 ! and without precise locality, 

 Bucholz ! 



IiO^ver Guinea. Islund of St. Thomas, Moller 8^ Quintas, in Fl. Afr. JExsicc 

 Conimbric, 124 ! Gaboon : Corisco Bay, Strickland ! Loango ; Soyaux, lOD ! 112 . 

 Lower Congo : Kinchassa, Luja, 183 ! 



Soutb Central-. Congo Free State: Lnkolela, 1000 ft.. Hens, C, 152 ! 



Also in Malaya, Polynesia and Tropical America. 



This plant collected in Upper Guinea, has been received from various herbaria — 

 always without a name. The material above cited appears to me most identically 

 one plant; nor can I distinguish that plant from the American typical M.flahelli- 

 formis. 



46. M, eurysta chys, C. B. Clarke in Durand dt Schinz^ Conspect. 

 FL Afr. v. 587. Glabrous. Rhizome obliquely descending, \ in. in 

 diam., covered by scales. Stem 2J ft. long, at the top ^ in. in diam., 

 triquetrous and smooth. Leaves J the length of the stem, \ in. broad. 

 Umbel simple; rays 10, up to 1 J in. long; bracts 8, similar to the 

 leaves, lowest up to 16 in. long. Spikes ^ in. long and broad, dense, 

 of 40 spikelets spreading at right angles, dull green. Spikelets J by 

 Jj in., linear, terete, maturing 4 nuts. Nut-bearing glumes elliptic, 

 obtuse, 13-ribbed, adpressed-erect in fruit. Nut J the length of the 

 glume, trigonous, oblong, black ; style 3-fid. — Rendle in Cat. Afr. PI. 

 Welw. ii. 120. Cyperus eurystachys. Ridley in Trans. Linn. Soc. ser. 2, 

 Bot. ii. 143. 



laGvrex Guinea. Angola : Huilla; in damp places in woods, Welwitsch, 

 7061 ! 



This species is clo>e to M. flahelliformis, H. B. & K., from which it differs in 

 the rhizome, also in the spikelets and nuts being a little broader. 



47. M. aximensis, C. B. Clarke in Durand d- Schinz, Conspect. 

 Fl. Afr. V. 584. Glabrous. Rhizome obliquely descending. Stem 1 ft. 

 long, at the top trigonous and smooth. Leaves f the length of the 

 stem, \ in. broad, green. Umbel simple; rays 11, up to 1 in. long; 

 bracts 8, similar to the leaves, lowest up to 7 in. long. Spikes ^ by 

 J in., of 40 spikelets, dense, a dusky straw-colour. Spikelets in fruit 

 obliquely erect, J by Jg- in., almost terete, maturing 7 nuts. Glumes 

 elliptic-oblong, obtuse, finally spreading obliquely a little. Nut § the 

 length of the glume, broad oblong ; otherwise as M. ^abelliforrnis. 



