FLORA NIGRITIANA. 555 
The A. barbata, Beauy., from the banks of the Formosa, and 
the A. lanceolata, Schum. and Thonn., from Guinea, appear 
to be both of them nearly allied to the A. pilosa. 
1. Lipocarpha argentea, Br—Kunth, Enum, 2. p. 266.— 
Sierra Leone, Don; Tropical America, Africa and Austra- 
lia. 
2. Lipocarpha sphacelata, Kunth, Enum. 2. p. 267.—Cape 
Palmas, Ansell; East India. 
The style is generally trifid, but occasionally, in the same 
spikes bifid, and the L. filiformis, Kunth, from Guinea, is 
probably the same. species, nor does the Brazilian L. gracilis, 
Nees, appear to be essentially distinct. In the African speci- 
mens, the spikes are usually from 5 to 7 in the head. 
1. Hypolytrum latifolium, A. Rich.— Kunth, Enum. 2. p. 271. 
—Fernando Po, Vogel; Tropical Africa and Asia. 
l. Rhynchospora Wallichiana, Kunth, Enum. 2. p. 289.— 
Grand Bassa, Vogel; Mauritius, East India and China. 
These specimens have the heads smaller, and fewer spikelets 
than the East Indian ones, but their structure is precisely the 
Same. The style has two minute lobes at the extremity, which 
Soon wear down after fecundation. 
3. Rhynchospora aurea, Vahl.—Kunth, Enum. 2. p. 293.— 
Sierra Leone, Vogel; Tropical America, Africa, Asia and 
Australia. ; 
L. Scleria flagellum, Sw.?—Kunth, Enum. 2. p. 389 ?—Sierra 
Leone, Don; Grand Bassa, Vogel, Ansell.—Tropical Ame- 
rica and Africa. ; 
The leaves are nearly smooth, and the achenia white, but it 
agrees in other respects with Kunth’s description. 
2. Scleria reflexa, Humb. et Kunth.—Kunth. Enum. 2. p. 340. 
—Fernando Po, Vogel; Tropical America. 
3. E racemosa, Poir ?—Kunth. Enum. 2. p. 944 1—Grand 
ssa, Vogel.— Madagascar. : 
These ipiis vui to Kunth’s description. The achenia 
are l} lines in diameter, but have not perhaps yet attained 
their fall size. I have another gathered by Michelin in Sene- 
gal, closely resembling this one, but with still larger achenia 
