Cyj)erus.\ clvi. cyperace^ (clarke). 335 



I the length of the glume, trigonous, broadly oblong, smooth, chestnut- 

 red, dotted. — De Wild. & Durand, 111. Fl. Congo, i. la, t. H. 

 South Central. Congo Free State : Lisha, 1000 ft., Heiu<, (', 3(54. • 



37. C. Boehmii, Boeck. in Engl Jahrh. v. 41)H. Stems ir> in. 

 long, slender, roundish. Leaves \ the length of the stem, ^\,-\ in 

 btoad. Umbel-rays 10-12, up to 2 in. long, very slender,' bracts as 

 long as the umbel, linear. Spikelets 20-40 to a spike, up to 1 bv 

 y\ in., oO-flowered, black ; glumes rather distant, otherwise as ('. tcna^. 

 C. B. Clarke in Durand tk Schinz, Conspect. Fl. Afr. v r»r>0 • K Schum 

 in Engl. Pfl. Ost-Afr. C. 118. 



irileZiand. British East Afriea : Rabai Hills and Tsiinba (Shiinba) Mountains 

 Taylor ! 



XHozamb. Blst. Zanzibar, Schmidt, 59 ! German East Africa : Karagwe ; 

 Bukoba, Stuhlmann, 1104! Unyamwezi ; Msalala, Hannington ! Ugalla district' 

 Boehm, V5 ! 



The long, very slender spikelets are handsome, and they differ from those of 

 C. tenax in the glnmes being more distant, but in some examples they are hardly 

 longer than in C. tenax, 



38. C. apricus, Ridley in Trans. Linn. Soc. ser. 2, Bot. ii. 141. 

 Glabrous. Rhizome seen J-IJ in. long, densely covered with coarse 

 stiff fibres (the remains of scales). Stems 2-10 in. long, slender, at the 

 top trigonous, at the base surrounded by stiff fibres, approximate. 

 Leaves | the length of the stem, ^V i^- broad. Umbel-rays 1-4, up to 

 1 ^ in. long, often very short, or infiorescence contracted into 1 head ; 

 bracts 2-3, much overtopping the inflorescence, -^^ in. broad. Spikelets 

 3-12 to a spike, subdigitate, brown-red, J-J by ^^ in., compressed. 

 8-22-flowered, with parallel sides. Glumes ovate, obtuse or very 

 minutely apiculate, 7-9-striate. Filaments long, exserted, slender'; 

 anthers linear-oblong. Style linear, long; branches 3, linear, about.', 

 the length of the undivided part of the style. — C. B. Clarke in Durand 

 & Schinz, Conspect. Fl. Afr. v. 548, and in Bull. Herb. Boi.sjs. iv. 

 Append, iii. 29 ; K. Schum. in Engl. Pfl. Ost-Afr. C. 118 ; Rondle in 

 Cat. Afr. PI. Welw. ii. 118. C. Schinzii and C. purpureus, Boeck. ii> 

 Verhandl. Bot. Ver. Brandenb. xxix. 45. 



l*o-wer Crulnea. Angola : Pungo Atidongo ; between Mutu Lucala and 

 Quibonda, Welwitsch, Qdlh\ and without precise locality, Welwitsch, 'JIQZ'. 91Gi! 

 German South-west Africa : Amboland; Oshiheke, Schinz, 384! Olukonda, Schinz, 

 383! 



Schinz, 383 (type of C. purpureus, Boeck.), has 4 spikes; Schinz, 384 (type of 

 C. Schinzii, Boeck.), has 1 spike; otherwise they seem to me identical. The branches 

 being so much shorter than the undivided part of the style sejmrates this species com- 

 pletely from most species of Cyperus except C. semitrifidus, Schmder (Cape), which 

 has much broader spikelets. C. holostigma (n. 6 above) is p )8sibly a depau])erated 

 state of C. apricus y it has the style subentire and the spikelets black. 



39. C. Adansoniy C. B. Clarke in Durand d: Schinz. Conspect. Fl. 

 Afr. V. 546. Glabrous. Rhizome hardly any. Stems 3 in. long, at the 

 top trigonous, at the base woody, approximate. Leaves 4 J by yV/j ^°» 

 green, weak. Spikes 1, or with a second on a ray ? in. long; bracts 



