144 MR. Н. N. RIDLEY ON THE WEST-AFRICAN 
mucronatis 9-costatis ; dorso viridi, lateribus fulvis; rhacheola flexuosa alata, alis 
scariosis ; caryopsi obovata basi angustata, acute triquetra rugoso-punctata atra, 
squama duplo breviore. 
Golungo Alto, in sylvis primevis Sobati Quilombo Quiacatubia, nos. 7010, 71715; 
Quibanga 7006 2; prope Sange, Dec. 1854, no. 7010. 
A rather flaccid plant, with an umbel of rather long rays nearly 2 inches in length. 
The spikelets, somewhat distant, are +inch in length. The involucral leaves are 
unusually long, attaining a length of 9 inches. The nut is broadly ovate, with acute 
angles, unlike that of any of its congeners. 
C. UMBELLATUS, Benth. Fl. Hongk. p. 386. Mariscus Sieberionus, Nees, Sieb. Fl. 
Maurit. no. 3. 
Prince’s Island, Porto San Antonio, frequens in sylvestribus subsiecis regionum in- 
feriorum, Sept. 1853, no. 7064, 7068. 
Sierra Leone, in montosis sylvestribus supra Freetown, no. 7062. 
Loanda, по. 7012, 7006. Golungo Alto, in sylvis prim:zevis de Quibanga, Dec. 1855, 
no. 7006. 
Pungo Andongo, in umbrosis ad Cataraetam Calundo ipsius Preesidii, Nov. 1856, 
no. 7009. Herba tota flavo-viridis, nitens rigida. 
Var. CYLINDROSTACHYs, C. B. Clarke, Linn. xx. 296, no. 7008, 7165. No specific localities. 
Distributed over the tropics of both hemispheres. 
С. Еълупв, Boeckeler, Linnea xxxvi. 284. Mariscus flavus, Vahl, Enum. ii. 374. 
И. aggregatus, Willd. Hort. 
Pungo Andongo, Condo Quisonde, Martio 1857; insula Calemba, ad Cuanza; Can- 
dumba, no. 7009. 
This is the compact-headed form, with 8-flowered spikelets, formerly cultivated under 
the name of М. aggregatus, Willd. The plant occurs abundantly in the West Indies, 
the southern United States, and South America. 
C. MYRMECIAS. n.sp. Czespitosus, rhizomate descendente; culmis subpedalibus crassius- 
culis triquetris striatis ; foliis copiosis late linearibus acuminatis carinatis scabridis, 
basi purpurascentibus erectis; involucralibus 7 et ultra, erectis demum patentibus, 
late linearibus acuminatis, semipedalibus ; radiis umbelle 9-10, longis valde 
inequalibus ; spicis oblongo-ovatis; bracteis ssepius duabus anguste linearibus infra 
infimas spiculas; spiculis copiosis laxe aggregatis, in rhachidi angulata impositis, 
linearibus acutis trifloris; squamis oblanceolatis 6-costatis, dorso viridi, lateribus 
flavescentibus ; stylo breviter trifido parum exserto, pallido ; caryopsi (immatura) 
lanceolata, trigona, basi angustata flavescente. 
Huilla, late czespitosus in pratis sylvaticis inter Lopollo et Monino frequens, ad 
 elevationes arenosas compactas formicarum.  Mart.-Maio 1860, no. 7059, in herbidis 
sylvarum clariorum Monino vix cæspitosus, no. 7060. 
