14 
1. FUIRENA UMBELLATA, Rottb. Descr. et Ic. 70. 1773. 
Frequent in coastal marshes. Near Cold Harbour, east of Port 
Antonio (Britton 900). Widely distributed in tropical regions. 
2. FUIRENA SQUARROSA, Michx. Fl. Bor. Am. I: 37. 1803. 
Jamaica, according to Vahl, but not found on the island by recent 
collectors. The species is widely distributed in the eastern United 
States and is reported from Cuba. 
10. DICHROMENA, Michx. Fl. Bor. Am. I: 37. 1803. 
Bracts of the involucre ciliate at the base 
Spikelets capitate-spicate ; bracts white 
toward the base 1. D. ciliata 
gaia I-5 ; bracts mostly green through- 
2. D. radicans 
incre of the involucre not ciliate 3. D. colorata 
ype species, Dichromzna leucocephala, Michx. 
I. DICHROMENA CILIATA, Vahl, Enum. II: 240. 1806. 
Rhynchospora pura, Griseb. Fl. Br. W. ti 577. 1864. 
Grassy banks and meadows ; frequent at low and middle elevations. 
Brandon Hill (Thompson 8101); Mansfield, Bath (Nichols 192); 
near Port Antonio (Fredholm 3021), Troy (Britton 447). Widely 
os ae in Tropical America. 
a RADICANS, Schl. & Cham. Linnaea, VI: 28. 
1631 
co aed Persooniana, Griseb. Fl. Br. W.I. 377: 
at 
‘Meadow, near Hollymount (Britton 769). Widely distributed in 
‘Tropical America 
3. DICHROMENA COLORATA (L.) A.S. Hitchce. Rep. Mo. Bot. 
Gard. IV: I41. 1893. 
Schoenus coloratus, L. Sp. Pl. 43. 1753. 
Rynchospora stellata, Griseb. Kar. 123. 1857. 
Dichromena leucocephala, Michx. Fl. Bor. Am. I: 37: 
Recorded from Jamaica by Grisebach and by Clarke and repre- 
sented in the herbarium of the Public Gardens. Grand Cayman 
(Millspaugh 1375). Distribution : Southern United States, West 
Indies and Central America. 
I. RYNCHOSPORA Vahl, Enum. II: 229. 1806. 
Style ion its branches much shorter than the lower undivided 
part 
Spikelets densely capitate 1. R. cyperoides 
its: in panicled clusters, not densely 
capita 
Fubercle nearly or quite twice as long 
as the achene 2. R. Eggerstana 
Tubercle shorter than the achene, or but 
littke longer. 
Bristles about as long as the achene or 
longer 3. R. corymbosa 
Bristles obsolete or none 
Spikelets fascicled, leaves 1. 5-3 
mm. wide 4. R. elongata 
Spikelets not fascicled, the clusters 
loose ; leaves 4 mm. wide 5. R. polyphylla 
