Cyperus] xxvii. CYPERACEiE. 115 



Condo and Quisonde on the right of the river Cuanza ; Mar. 1857. 

 No. 6924. 



22. C. denudatus Linn. f. Suppl. PI. p. 102 (1781) ; C. B. Clarke, 

 I.e., p. 555. 



HuiLLA.— Dried-up ponds near Nene ; May 1860. No. 6861. 



23. C. sphaerospermus Schrad. Anal, Fl. Cap. p. 8 (1832) ; C. B. 

 Clarke, I.e., p. 577. 



C. huillensis Ridl., I.e., p. 139, including var. aphijUa. 



HuiLLA. — Rhizome tuber-bearing. Here and there iu fields now 

 neglected but formerly sown with Sohmnin tuberosum ; beginning of 

 May 1860. No. 6865. Widely cajspitose among herbage in thickets 

 between Nene and Humpata ; May 1860. No. 6867. Low rather 

 dry hills grown with short thicket near Humpata ; April 1860. 

 No. 6868. At the foot of Serra de Oiahoia, Sobato Humpata ; end 

 of April 1860. No. 6869. Plentiful on the stream near Bumbo ; June 

 1860. No. 6889. 



24. C. difformis L. Cent. ii. Plant, p. 6 (1756) ; EidL, I.e., p. 137 ; 

 C. B. Clarke, I.e., p. 556. 



Barra do Daxde. — Widely cgespitose, culms weak, 1 to 1^ feet 

 high, spikes tawny yellowish. On the banks of a lake near B'ombo 

 near the banks of the river Dande ; Sept. 1858. No. 7027. 



Loaxda. — In the clayey bottom of dried-up ponds near Forte de 

 Concei^ao, but very rare ; 12 July, 1854. No. 7065. 



Amf.aca. — Cffispitose at the lake Canguele-Canganga and on the 

 banks of the river Caringa ; June 1855. No. 7066. 



GoLUNGO Alto. — Very widely csespitose; culms acutely triquetrous, 

 colour of the whole plant yellowish green. Very rare on spongy 

 islands of the river near Banza de Bango ; 30 April and 1 May 1856. 

 No. 7067. 



PuNGO Andongo. — In wooded ponds between Condo and Calemba 

 Islands ; March 1857. No. 6933. Marshy places at Luxillo ; April 

 1857. No. 6934. 



MossAMEDES. — In damp sandy places near the river Bero at Caval- 

 heiros ; July 1859. No. 6853. In grassy places flooded in summer 

 on the banks of the river Bero near Cavalheiros, but found only here 

 and there ; August 1859. No. 6883. 



25. C. dichroostachyus Hochst. ex A. Rich. Tent. Fl. Abyss, ii. 

 p. 481 (1851); Ridl., I.e. ; C. B. Clarke, Ic. 



HuiLLA. — By wooded ponds near the banks of the river Mupanda ; 

 end of Feb. 1860. No. 6864. 



26. C. leucocephalus Retz. I.e. p. 11; Ridl., I.e.; C. B. Clarke, 

 I.e., p. 566. 



C. seslerioides Ridl., I.e., p. 130 (non H.B.K.). 



PuNGO Andongo. — Rain swamps in rocky places between the 

 presidium and Quilanga ; Feb. 1857. No. 6772. No. 7146 (no in- 

 formation). Heads snow-white. Forms a striking ornament of the 

 short-grassed wooded pastures in springtime (December). Plentiful 

 in thickets and wooded pastures of the priBsidium, especially near 

 Quilanga and Catete ; Dec. 1856. No. 7147. 



HuiLLA. — A rigidulous herb 4 to 6 in. high ; heads snow-white, 

 almost spherical, compact. Habit exactly that of Aacolepix, but the 



