“TRIANDRIA. MONOGYNTA. $7 
with a very long, dense, and woolly involucrum. 
Seed sub-ovate without angles, 
Culm generally round and leafy; spikes terminal, soli- 
tary or aggregate. Stamina mostly 3, rarely 2. 
_ Species. 1. E. cespitosum. 2, pelystachyum. 3. angustifo- 
lium, 4. virginicum. A genus equally common to the 
sphagnous morasses of Europe and North America; there 
is, as yet, but one species, the E. virginicum, peculiar to _ 
the United States. From Persoon it does not appear that 
any other portions ef the world afferd a single species of © 
this curious genus. 
<= 
56. VAGINARIA. Persoon. 
57, FUIRENA. L. _ Bo gr 
Spike ovate, calyeine scales imbricated on all 
sides, acutely acuminated. Corolla 0.  Stig- 
mata 3. Involucellum of the seed formed of 3 
chaffy awnless scales alternating with 3 slen- 
der setz. : 
-_ Root creeping. Culm round, simple, without distinet 
_ leaves, distantly invested with obliquely truncated och- 
rez or vagine (sheathes) having small subulate 1 aead 
spike ovate, terminal, generally solitary, someti 
* 
threes, In habit this plant appears distinct trom the ge- _ 
nus Fuirena, to which, however, it is verv closely allied. 
But the scales of the spike are not properly awned, only * 
acutely acuminated; the scales of the perisporium are also 
said to be furnished with alternating filaments or sete, — 
and destitute of awns. 
Florida.) 
a" 
= 
Spikelets composed of mucronate scales im- 
bricated on all sides. Corolla 0, Seminal invo-— 
_ Spectres. 1. V. Richardi. (The only species known.—In . 
. aN 
lucellum broad, chaff-like, scales cordate, (sti- 
pitate) often awned. Stigmata 2 and 3. (Seed — 
triangular.) : ee 
* 
Culm round and leafy, terminating in an umbellate pa- 
nicle, or aggregation of spikelets. Calicine scales abrupt- 
ly aw! ed; the awn ereet‘0r patulous. Root in F. squarro- 
sa resembling a coneatenation of bulbs. _ eee 
Spectres. 1. F. squarrosa. (Georgia and Carolina). - OF 
this genus there are 2 other species in the 
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