210 Monograph of North American RhynchosporcB. 



19. Rhynchosfora Baldwinii. 



R. foliis acutls, glaucis ; spiculis ovatis, corymboso-fasciculatis, 

 terminalibus ; nuce laevi, (ovata vel suborbiculato-ovata,) len- 

 ticular! ; setis duodenis, sursum bispidulis, nucem aequante. 



R. glauca, Baldw. Mess, et Herh. ! 



Culms acutely triangular, 2 — 3 feet high, rather slender and, with the 

 leaves, glaucous. Leaves linear, carinate, somewhat narrower than 

 in the preceding species, acute, with slightly scabrous margins. 

 Corymb terminal, crowded; sometimes with a smaller, rather distant 

 pedunculate axillary one. Eracls shorter than the corymb, setaceous, 

 with hispid-scabrous margins and keel. Glumes ovate, cuspidate. 

 Bristles 12, minutely hispid upwards, scarcely longer than the mature 

 nut. Stamens 3. Nut very smooth, ovate or subrotund, lenticular. 

 Tubercle about i the length of the nut, somewhat narrowed at the 

 base, compressed. 



Hab. " Georgia, in pine barren swamps, between the Satilla 

 and Altamaha rivers, December, 1816." Dr. Baldwin. 



Obs. This species is very similar in habit to the preceding ; 

 but it differs in having acute, not ciliate leaves, a larger nut, 

 and longer bristles. R. ciliata also has six bristles, the ordi- 

 nary number for this genus : this species has uniformly 

 twelve. R. glauca, of Vahl, a native of ^Equinoctial Ame- 

 rica, has a rugose nut, and is doubtless distinct from our 

 plant. I have therefore dedicated this species to the me- 

 mory of its enterprising discoverer, who paid much attention 

 to the genus Rhynchospora. 



20. Rhynchospora Fascicularis, Nutt. 



R. culmo subtrigono ; spiculis oblongis, corymboso-fascicula- 

 tis, pauciusculis, terminalibus lateralib usque ; nuce Isevi, 

 ovata, lenticulari, setis sursum bispidulis duplo longiori ; tu- 

 berculo compresso, nuce breviore. 



R. fascicularis, Nutt. Gen. I. p. 33. Vahl, Enum.U.p. 334.'' 

 Pursh, Fl. 1. p. 48 ? 



