190 
ENGLISH BOTANY. 
Tribe XIV.— HOEDEIE.E. 
Spikelets usually open during flowering, sessile or subsessile, 
arranged in a simple distichous spike, the rachis of which is exca- 
vated to receive them, and has at each notch 2 to 6 spikelets placed 
side bj side, each spikelet containing 1 or more perfect florets; some- 
times the lateral spikelets have only a floret. Glumes 2. Stigmas 2, 
sessile, usually protruded at the base of the florets between the mar- 
gins of the pales. Caryops dorsally compressed, with a furrow on the 
GENUS XLIV.-l^ L Y M U S. Linn. 
Spikelets quite sessile, in pairs or threes at each node of the rachis, 
arranged in a simple spike, open during flowering, each containing 2 
to 4 perfect florets. Glumes 2 to each spikelet, nearly equal in all the 
florets, both of them on the side of the spikelet farthest from the rachis, 
a Uttle shorter or a little longer than the florets, not awned, subcori- 
aceous or subherbaceous. Pales 2, the lower one rounded on the 
back, acuminate, pointed or mucronate or awned, subherbaceous or 
subcoriaceous. Upper pale, 2-toothed, 2-keeled, scarious. Lodicules 
2, entire. Stamens 3. Stigmas 2, sessile, inserted a little below the 
summit of the ovary, plumose, protruded at the sides of the florets 
between the basal margins of the pales. Caryops adhering to the 
pales, pubescent at the apex, narrowly linear, convex on the back, 
furrowed on the inner face. 
This genus derives its name from the countiy where the species are abundant^ 
Eljma, in Greece. 
SPECIES I.-ELYM US ARENARIUS. Lmn. 
Plate SIDCCCXIX. 
Eeieh. Ic. Fl. Germ, et Helv. Vol. I. Tab. CXYI. Figs. 247 and 248. 
Perennial. Rootstock extensively creeping, with long stolons. 
Stems erect-ascending, thick, stout. Leaves broadly linear, with 
numerous thick prominent cartilaginous scabrous-puberulent contigu- 
ous ribs, very glaucous above, smooth and green beneath; h^nile 
very short, truncate, minutely ciliated. Spike usually com-pact"; or 
slightly lax at the base, rarely so throughout, cylindrical, slightly com. 
pressed. Spikelets at the base and apex of the spike in pliirs, those 
toward the middle often in threes, mostly 3-flowered, with the upper^ 
jnust flower male. Glumes linear-lanceolate, acuminate, with subulate 
