GRAMIJfA. 
51 
) be disliked by cattle generally, and is not of sufficient import- 
ntion of agricnltiirists. It grows on dry heaths and pastures, 
tion of nearly 2,000 feet above the sea. 
GENUS XIX.— P S A M M A. Pal de Beam. 
Spikelets shortly stalked, arranged in a very dense fusiform-cylin- 
drical or slightly lobed spikelike panicle which has short adpressed 
lateral branches, laterally compressed, biconvex, open during flowering, 
each containing a single perfect floret, with the superior stalklike 
rudiment of a second. Glumes 2, nearly equal, a little longer than 
the floret, keeled, acute, but not awned, parchmentlike. Pales 2, 
nearly equal, parchmentlike, the lower one shortly bearded at the base, 
keeled, 5-ribbed, bidentate and mucronate at the apex, very shortly 
awned; the upper one with 2 keels. Lodicules 2, lanceolate. Sta- 
mens 3. Stigmas 2, sessile, plumose, protruded at the sides of the 
florets between the basal margins of the pales. Caryops glabrous, 
free, oblong, deeply furrowed on the inner face. 
[ xl^dfJflT], 
SPECIES I.-P S A M M A A B E N A R I A. T2<u,.& .^d 
Plate MDCCXXII. 
BeicTi. Ic. Fl. Gall, et Germ. Exsicc. Vol. I. Tab. LXXXV. Fitr. loT. 
Blllof, Fl. Gall, et Germ. Exsicc. No. 1779. 
P.^. littoralis, Pal de Benur. Agrost. p. 145. 
Amraophila arundinacea, ift^s/ ; Fad. Fl. Ital. Vol. T. p. 214. Kunth, Enuni. PI. 
Vol. I. p. 245. 
A. arenaria, LinJc, Hort. Ber. Vol. I. p. 105. 
Calamagrostis arenaria, Both ; Frieg, Summ. Vcg. Scand. p. 70. I). C. Fl. Fr. Vol. 
III. p. 24. 
Amndo arenaria, Linn. Sm. Engl. Bot. ed. i. Is"o. 520, and Engl. Fl. Vol. I. 
p. 171. 
Rootstock very extensively creeping. Panicle spikelike, fusiform- 
cylintlrical, narrowed towards the base, very dense, not lobed (or 
rarely slightly lobed), continuous, greenish- white. Glumes acute. 
Hairs at the base of the floret, about one-third the length of the 
glumes. Outer pale 5-ribbed. 
On loose sand by the sea. Rather common, and generallv distri- 
buted on the coast. 
England, Scotland, Ireland. Perennial. Late Summer, 
Rootstock very widely creeping. Stem 2 to :l feet high, usuallv 
