ROYAL BOTANIC GARDENS, KEW. 
BULLETIN 
OF 
MISCELLANEOUS INFORMATION, 
ADDITIONAL SERIES VIII. 
NEW GENERA AND SPECIES OF CYPERACEAE. 
C. B. CLARKE. 
PU Pycreus potosiensis, C. B. Clarke ; spiculis nigro-castaneis ; 
ceteroquin fere ut P. flavescens. 
Cyperus flavescens, S. Wats., in Proc, Amer, Acad. xviii. (1883), 
p. 169 ; Hemsl. Biol. Centr. Amer. Bot. iii., p. 447. 
Glabra. Radices annuae. Culmi numerosi, dense caespitosi, 
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obovoidea, "ce ellu ulis eene longitudinaliter Sponge eg in 
P. flave. scente magis obscur Si mavis, var. geographica P. flaves- 
centis, sed in P. d'Gemeng tee lucide castaneum nunquam 
vidi. 
“MExIc0. San Luis Potosi, Schaffner, nn. 569, 198. [541] 
2442 P. piceus, C. B. Clarke , Cyperus piceus, Liebm. [542] 
30% Y P. tristachyus, C. B. Clarke; Cyperus tristachyus, Boeck. [549] 
20455 P. segmentatus, sp. n. ; culmo submonocephalo, 3-10-stachyo ; 
spiculis usque ad 18 mm. longis, 5 mm. latis, multum compressis, 
nigris, atl stylo 2-fido ; nuce obovoideà a lineis interruptis 
transversis albis numerosis usque ad basin gubpapillosim seg- 
menta. 
3946P. nigricans, C. B. Clarke, in Dyer, Fl. Trop. Afr. viii, p. 292, 
partim ; neque Cyperus nigricans, i-a 
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