NORTH AMERICAN SPBCIES OF RHYNCHOSPORA. 
rather loosely flowered; the three upper 
ones approximate at the summit of the 
culm, the lower ones subremote. Spikelets 
turgidly ovate, about a line in length. 
Glumes dark-fuscous. Bristles six? very 
fragile, scarcely equalling the nut, minutely 
hispid upward. Stamens three. Nut less 
than half a line long, ovate, flattened, 
transversely rugose, with minute longitu- 
dinal strie. Tubercle very short, com- 
pressed. 
Has. In wet savannahs. Flowers from 
June to July. St, Mary’s, Florida; Wil- 
mington, N. Carolina. 
Oss. The bristles in this species, on 
account of their extreme fragility, are sel- 
dom found entire when the fruit is mature. 
10. R. plumosa (Ell); culmo trique- 
tro foliisque setaceis, glomerulis pauciflo- 
ris ad summitatem culmi subcongestis, 
unis aiiis nuce qiabulono- cobeente 
ranctrrar 
E 
tuberculo brevissimo: 
R. plumosa, .E/]./ Bot. S. Car. et Georg. 
v. I p. 58. Rem. et Sch. Mant. v. II. p. 
90. Spreng. Syst. Veget. v. I. p. 195. 
Schoenus ciliaris, Muhl. Gram. p. 11. 
Culm eight to twelve inches high, trian- 
gular, smooth. Leaves setaceous, and 
somewhat rigid, shorter than the culm. 
lowers in small fascicles, forming a loose 
cylindrical spike, sometimes furnished with 
à subremote, pedunculate, axillary spike. 
Bracts setaceous; the lower ones an inc. 
or more in length. Glumes fuscous, broadl 
ovate; the outer ones mucronate. Bristles 
six, plumose, as long as the nut. Nut glo- 
bosely obovate or ovate, about a line in 
ubercle short, depressed-conic, 
apiculate. 
Has. Dry Pine-barrens. Flowers from 
June to August. Charleston, S. Carolina ; 
Florida; Georgia; Fayetteville, and Wil- 
mington, N. Carolina 
ll. R. punctata (El); paniculis co- 
rymboso-fasciculatis exserte pedunculatis, 
nuce obovato-compressa reticulato-rugulo- 
= alveolis impressis setis sursum hispidu- 
lis paulo breviore, tuberculo compresso- 
conico, 
AR. punotate, El Bot. of S. Car. et i 
31 
Georg. v. T. p. 60. Ram, et Sch. Mant. v. 
II. p. 51. Spreng. Syst. Veg. v. I. p. 196. 
(excl. syn.) 
Culm slender, triangular, one to two feet 
high. Radical leaves not seen; cauline 
ones one to two inches long, linear-lanceo- 
late, acute. Corymbs three to four, lateral 
and terminal, fascicled; the lateral ones 
subsimple, distant, and long-peduncled. 
Fascicles subtended by short, setaceous, 
and rigid bracts. Spikelets ovate. Glumes 
chestnut-coloured, ovate, the lower ones 
mucronate. ristles.six, a little exceeding 
the nut, slightly hispid upward, Stamens 
three. Nut ovate, compressed, reticulately 
rugose, with impressed alveoli. Zubercle 
compressed-conic, shorter than the nut. 
Has. Savannah, Georgia; St. Mary’s, 
Florida. Flowers from May to June. 
Ops. In the specimens collected in 
Florida by the late Dr. Baldwin, the dis- 
, coverer of this species, the lateral corymbs 
are distant, and not clustered together at 
the summit of the culm. Except in this 
unimportant variation, the plant I have 
described agrees in every respect with the - 
detailed description of Elliott, who also 
obtained his specimens from Dr. Baldwin. 
12. R. Elliott ; culmo triquetro, co- 
rymbis fasciculatis paucifloris, spiculis 
ovato-oblongis, nuce subgloboso-ovata læ- 
vissime rugulosa setis sursum  hispidis 
paulo breviore, tuberculo brevi depresso- 
conico. 
R. distans, Fil. Bot. of S. Car. et Georg. 
v. I. p. 59. (excl. syn.) non Vahl. 
Schenus distans, Muhl. Gram. p. 10. 
S. fuscus, Muhl. Gram. p. 6. 
Culm one to two feet high, rather slen- 
der, exactly triquetrous. Leaves narrow- 
linear, flat, glabrous. Corymbs three to 
four, terminal and lateral, exsertly pedun- 
culate, subsimple and few-flowered. Spike- 
lets fasciculate, sessile, ovate or oblong- 
ovate. Glumes light chestnut- coloured, 
ovate ; the interior ones mucronate. Bris- 
tles six, hispid upwards, fuscous, a little 
longer than the nut, but scarcely i 
ing the tubercle. Stamens three to 
very long, deeply Weite Nut coii 
bglobosely ovate, 
