ee 
oo opti 
TRIANDRIA. DIGYNIA, Ft 
cluded by the calix. Masculine and neutral ca- 
lix, uniform or regular, 
’ - Flowers imbricated in an articulated, unilateral, com- 
pressed rachis; the masculine and hermaphrodie flowers 
intermixed. 
Species. 1.©M. granularis. (Onthe sea-coast of Caro- 
lina and Georgia. Micu.) 
_ A genus of India and America within the tropics, con- 
sisting of 2 species, 
113. LEPTURUS. R. Brown, (RoTBoLut1A, spe- 
cies, Willd.) 
Flowers polygamous, spiked. Rachis articu- 
lated, filiform; articulations single-flowered.— 
Caiix fixed, or growing to the rachis, 1 or 2- 
valved, the valve simple, or biparted. 
With the precise characters of this genus, as described 
by Mr. R. Brown, I am unacquainted, but satisfied with 
the propriety of separating planis of such dissimilar ha- 
bits, as bave been hitherto referred to Aosbollia, 1 have 
ventured to give it, however imperfectly. 
Spectres. 1. UL. *paniculatus. Rachis incurved, com- 
pounded, acutely triangular, branches and summit flower- — 
aring; spikes on one side, subulate, compressed, unila- 
teral; calix 2-valved, acuminate, 1-Howered; flowers all 
hermaphrodite, 2-valved. : 
Ogs. Annual. Culm scarcely a foot high, roundish, 
compressed, leaves short, rigid, sheathing the base of 
the panicle; panicle or naked rachis, slender, rigid, angu- 
lar, bearing 6 to 10, compressed, subulate, spikes on one 
side, not soluble or fragile at the articulations, each 1 or 
2 inches long; flowers remote, on one side of the rachis. 
Calix rigidly fixed, of 2 unequal parallel valves closing 
‘the scrobiculum; flower 2-valved, the exterior valve re< 
sembling the calix, the interior membranaceous. 
On dry saline plains, near Fort Mandan, on the Mis- 
souri. Flowering in June- ; : 
114, *ANTHOPOGON.} (AxpRorocon ambi- 
3 
guum, Mich.) . 3: ee 
Flowers polygamous, irregularly alternating 
e Ras as “< 
{> From ayéos, a flower and Rayevy, a beard. ae 
rudiment going out into a long awn, aes 
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