•iOe CLVi. CYPERACE^ (clarke). [Eleocharis. 



yellow-brown. Style- bracches 8 or 2. Nut J-f the length of the 

 glume, biconvex or unequally trigonous, smooth, brown, neither ribbed 

 nor transversely barred. — Kunth, Enum. ii, 153; Benth. Fl. Austral, 

 vii. 292 in obs. ; C. B. Clarke in Hook. f. Fl. Brit. Ind. vi. G25, and in 

 Durand & Schinz, Conspect. Fi. Afr. v. 600 ; Rendle in Cat. Afr. PI. 

 Welw. ii.l21. Scirpus plantaginoides, Rottb. Descr. et Ic. 45, t. 15, fig. 

 2. Heleocharis plantaginea, Boeck. in Linnaea, xxxvi. 474, excl. the 

 description and the American plants ; Ridley in Trans. Linn. Soc. ser. 2, 

 Bot. ii. 149 partly. 



Xiower Guinea. Angola : Huilla ; ponds by the river Cacolovar, near Lake 

 Ivantalii, Welwitsch, 6968 ! 



In the Mascarene Isles, South and East Asia (common), Queensland and 

 Polynesia. 



2. E. mitrata, var. africana, C. B. Clarke in Durand d- Schinz, 

 Conspect. FL Afr. v. 599. Glabrous. Stolons long, hardly J^ in. in 

 diam. Stems 12-18 in. long, -^^ in. in diam., nearly terete, not trans- 

 versely septa,te. Spikelet 1,1 by J in., greyish-green. Glumes ^-iin. 

 long, ovate, obtuse. Hypogynous bristles 7, about half the length of 

 the nut, white, nearly smooth. Style 2-fid. Nut | the length of the 

 glume, biconvex, almost urn-shaped, dirty straw-coloured ; superficial 

 cells transversely oblong, superposed in 24-30 vertical series (i.e. nut 

 cancellate) ; style-base almost mitre-shaped. — Urban, Symb. Antill. 

 ii. 62. 



trpper Guinea. Niger Territory : Nupe, Barter, 1040 I 



Also in Tropical America ? 



The typical E. mitrata (i.e. Scirpus mitratus, Griseb.) has the spikelets more or 

 less variegated with red ; and tlie hypogynous bristles yet more depauperated. 

 IJiirter n. 1040 may be esteemed a geographical variety or a closely allied species. 



3. E. fistulosa. Link in SprcTigel, Jahrb. iii. 78. Glabrous. Stolons 

 long, ^-J in. in diam. Stems 1-3 ft. long, ^-J in. in diam., at the top 

 triquetrous, not transversely septate. Spikelet 1, 1-1 J by ^-i in., from 

 sti^w-colour to brown. Glumes!-^ in. long, obovate, obtuse. Hypogynous 

 bristles 6, as long as the nut, retrorse-scabrid, rusty-red. Style-branches 

 T), or, a,ccording to authors, sometimes 2. Nut h the length of the 

 glume, obovoid, unequally trigonous, straw-coloured; superficial cells 

 transversely oblong, superposed in 24-30 vertical series (i.e. nut can- 

 cellate) ; style-base ovoid -conic, chestnut-coloured. — Kunth, Enum. ii. 

 155; C. B.Clarke in Hook. f. Fl. Brit. Ind. vi. 626, in Durand & 

 Schinz, Conspect. Fl. Afr. v. 598, and in Dyer, Fl. Cap. vii. 198; 

 Rendle in Cat. Afr. PI. Welw. ii. 121. E. acutangvla and E. media, 

 Schultes in Roem. <fe Schultes, Sj^st. Veg. ii.. Mant. 91. Scirpus fistulosics, 

 Poir. in Lam. Encvcl. vi. 749. Heleocharis fistulosa, Boeck. in Linnaea, 

 xxxvi. 472, and in Flora, 1879, 563 ; K. Schum. in Engl. Pfl. Ost-Afr. 

 V. 124. H. plantaginea, Ridley in Trans. Linn. Soc. ser. 2, Bot. ii. 149 

 partly. 



Upper Guinea. Senegambin, Jleudelot, 320! Senegal, Perrottet, 839! 

 Cape Verd, Perrottet ! Sierra Leone : Bagru Kiver, Mann, 893 ! French Guinea : 



