Ifypolytrum.'] CLVi. CYPERACEiE (clarke). 487 



Leaves triangular at the tip; stems 4-10 in. long, 



with 15-25 spikes . . . . . . 2. H. congeme. 



Leaves lanceolate, caudate ; stems 3-5 ft. long, with 



35 spikes . . . . . . . , 3. fl". lancifoVmm. 



**SCAPOSiE. Basal leaves long. Stem scapose, with no node or rarely 1 near the 

 top : stem-leaf (if present) and bracts very short. 



Spikes ^ in. long, oblong or oblong-ellipsoid . 4. K. africamim. 

 Spikes \-\ in. long, globose in fruit. 



Scape 8-12 in. long, slender, with 8-16 

 M. spikes . . . . . . . 5. IT. senegalense. 



^ Sc:«pe 20-28 in. long, stout, with 40-100 



spikes . . . . . . . 6. JT. longiscaposnm. 



1. H. nenaormin, Spreng. Syst. i. 233, excl. synonyms and some of 

 the habitats. Nearly glabrous. Stolons stout, clothed by broad-ovate 

 striate brown scales J in. long, hardening into rhizomes y^fj in. in diam. 

 Stem 15-30 in. high, tough, with nodes carrying long leaves, often 

 scabrous at the top. Stem leaves 1-2 ft. by |-1 in., 3-nerved, very 

 scabrid on the margin, tip acuminate-caudate. Panicle often 4-6 in. 

 long and broad, with often 50-150 spikes; peduncles rigid, divaricate; 

 lowest bract leaf-like, usually much exceeding the panicle. Spikes 

 solitary or almost clustered, of 10-20 spikelets, in flower \ in. long and 

 narrow-cylindric, in fruit i in. long and globose. Bract to the spikelet 

 y^Q in. long, broadly orbicular. Glumes to the two lowest male flowers 

 oblong, keeled, nearly as long as the bract. Sterile flower (between the 

 male flowers and nut) 0. Style 2-fid. Nut scarcely longer than the 

 male glumes, obovoid, flattened, smooth, dusky-brown, apparently 

 beakless, i.e. the style- base entirely fused into the nut. — C. B. Clarke in 

 Durand & Schinz, Conspect. Fl. Afr. v. G66 ; K. Schum. in Engl. Pfl. 

 Ost-Afr. C. 127. H. latifolium, Benth. in Hook. Niger Fl. 555 ; Boeck. 

 in Linnsea, xxxvii. 129 ; vix L. C. Kich. H. heterophyllum, and H. 

 huchholziamtm, Boeck. Cyp. Novae, i. 22. HypcF.lyptuni nemorum, 

 Beauv. Fl. Owar. ii. 13, t. 67, not Schcenus nemoruni, Vahl. Hypelytrn,ra 

 nemorum, Dietr. Sp. PI. ii. 364 partly. 



Upper Crulnea. Senegambia, Heudelot, 64 ! Sierra Leone, Smeathmann / 

 Afzelius ! Scott-Elliot, 4575 ! Lagos, Millen, 193 ! Lower Niger : Abo, Bnchholz ! 

 Ciimeroons : Kio del Key, Johnston! Mungo ; Buchholz ! by the Lobe River, near 

 Bat^nga, Bates, 149! Fernando Po, Vogel,20Q\ Mami, 120! 



Jao-wer Cruinea. Spanish Gaboon: Mount John, Kongue River, Mann, 18941 



Lower Congo : Stanley Pool, Lvja, 31 ! Duchesne, 27 ! Kisimtu, Gillet, 1792! 



Soutlx Central. Congo Free State, Dewevre, 288 ! 



IMCozamb. Hist. German East Africa : Usambara ; at Kquelo, Ifolsi, 2288 ! 



2. H. condense, C. B. Clarke. Stolons densely covered by ovate 

 scales. Stems 4-10 in. long, carrying 2 leaves far above the base, 

 smooth, in Dewevre 746 glabrous, in Dewevre 1061 bis hairy. Basal 

 leaves overtopping the stem, J in. broad, the tip narrow-triangular ; 

 stem-leaves similar but smaller, overtopping the inflorescence, not cau- 

 date and scarcely acuminate at the tip. Corymb ^-\- in. in diam.. 



