144 86. Psamma. 10. GR A MINEAE. 
PI. end . ph . 
Psamma arenaria. Sand marram . 
Spike long ; leaves involute, pungent ; root creeping. 
Gramefi sparteum spicatuin foil is niucronatis longioribus, vel spici 
secalina, Raii Syn. 393, 1. 
Spartum Anglicanum, Ger. em. 38. 
Spartum marinum nostras, Park. 1198. 
Arundo arenaria, Lin. S. P. 121. 
Calamagrostis arenaria, With. But. Arr. 123. 
Ammophilla arundinacea, Host Gram. Austr. 4,41. 
Psamma arenaria, Roem. Sys. Veg. 845. 
Sandy sea-shores ; perennial ; July. 
Roots spreading; culm 4 feet high, stiff, leafy; leaves 
upright, spreading, glaucous, very smooth, bald ; sheaths 
smooth; ligula long, acute; panicle 6 in. long; locustoe 
light glaucous green. 
XLVI. 87. SPARTINA. Schreber. Sea-grass . 
Spathelles alternate, very acute; lower smallest; spa- 
thellules 2-cut, nicked, toothed, shorter than the spathelles, 
awnless ; lodicule rather truncated, fringed ; style very long; 
stigmata 3, villous.- — Spike branched; spikelets alternate; 
locustoe 1 -sided, sessile, in two rows. 
Spartina stricta . Rough sea-grass . 
Spathelles rather longer than the spathellules, keel rather 
smooth ; spikelets adpressed ; locustoe loosely tiled, upright ; 
leaves convolute, pungent. 
Gramen sparteum, q. Spartum Essexianum, spicagemina clausa Petiver, 
Raii Syn. 393, 4. 
Dactylis cynosuroides, Huds. FI. Angl. 43; but not of Linnaeus. 
Dactyl is stricta, Solander in Ait. Hort. Iieio. 6, 104. 
Limnetis pungens, Persoon Syn. 1,72. 
Spartina stricta, Roth N. Beytr. 101. 
Marshy fields at the mouth of large rivers; per.; July, Aug. 
Root creeping; culm upright, 2 feet high, not branched, 
stiff, very smooth; leaves stiff, upright; sheaths long, very 
smooth, shining, very close to the culm, upper partly en- 
closing the lower spikelet; ligula very short; spikelets 2, 
hairy, soft; spathelles mostly mucronate below the tip. 
{3. triplex . Spikelets three. 
XJLVIL 88. VILFA. Adanson. Bent* 
Spathelles alternate, not notched, rather longer than the 
spathellules, lower largest ; lower spathellule 3 -cut, toothed, 
acute or ending in a bristle ; upper 2-cut ; lodicule acute ; 
stamens (1 to) 3; style 2-parted, short; stigmata villous ; 
cariopsis free, not furrowed.— Ptfrciefe branched, more or 
less contracted or effused ; peduncles semiverticillate. 
