15 
Style short, its branches about as long as 
the lower undivided part. 
Bristles none 
Spikelets I-2 mm. long 6. R. micrantha 
Spikelets 3-6 mm. long 
Achene not 3-toothed 7. R. Berterii 
Achene 3-toothed at the summit 8. R. setacea 
Bristles present, upwardly barbed 
chene smooth 9. R. fascicularis 
Achene cancellate 10. R. cephalotes 
Achene transversely wrinkled 
Bristles shorter than the achene; 
spikelets filiform-peduncled Il. R. rariflora 
Bristles as long as the achene or 
longer ; spikelets not filiform-pedun- 
ed 
e 
Achene not stipitate; spikelets 
about 3 mm. long 12. R. glauca 
Achene stipitate; spikelets 5-7 
mm. long 13. R. jubata 
Type species, Rynchospora aurea, Vahl. 
1816-17. 
Schoenus cyperoides, Sw. Prodr. 19. 1788. 
Meadow between Oxford and Wallingford (Britton 692) ; Oxford 
(Harris 9441). Not recorded by Clarke from Jamaica, but duly re- 
corded by Grisebach. Widely distributed in Tropical America. 
2. RYNCHOSPORA EGGERSIANA, Boeckl. Cyp. Nov. IL 26. 
1890. 
I. RYNCHOSPORA CYPEROIDES (Sw.) Mart. Denksch. Acad. 
iss. Muench. VI: 149. 
Rynchospora florida, Griseb. Fl. Br. W.I. 575. 1864. 
Rynchospora aristata, Clarke in Urban, Symb. Ant. II: 
115, in part, 1900. 
Common in mountain woods. St. Catherine’s Peak (Eggers 3596, 
type ; Blue Mountain Peak (Shreve) ; John Crow Peak (Britton 276) ; 
Morce’s Gap (Nichols 42; Britton 917); Cinchona (Underwood 468 ; 
hreve; Britton 63). Endemic. Differs from the Mexican and 
South American R. aristata, Boeck. by its shorter tubercle, longer 
bristles and more conspicuously cancellate achene. 
3. RYNCHOSPORA CORYMBOSA (L.) Britton, Trans. N. Y. 
Acad. Sci. fo S35. 1902. 
Scirpus corymbosus, L. Sp. Pl. 76. 1753. 
Rynchospora aurea, Vahl, Enum. II. 229. 1606. 
Schoenus surinamensis, Rottb. Descr. et Ic. 68. 1773. 
Ryne a surinamensis, Nees, Linnaea, IX: 297. 1834. 
Marshes, Port Antonio (Britton 859). Not otherwise known from 
Jamaica, except as cited by Grisebach, collected long ago by 
Swartz, and not referred to by Clarke. 
4. RYNCHOSPORA ELONGATA, Boeckl. Cyp. Nov. I: 261. 
1888. 
On shaded banks and in bogs at higher elevations. New Haven 
Gap (Shreve); near Cinchona (Britton 132); Morce’s Gap (Britton 
914). John Crow Peak (Britton 196); Sir John Peak (Britton 279) ; 
slopes below Sir John Peak (Harris 9550). Distribution ‘ Jamaica ; 
Porto Rico; Guadaloupe. 
