754 GRAMINE4: PUCCINELLIA 
ing or rarely erect, 4-8 inches long, spikelets 4-¥-flowered, 2-3 lines long: 
empty glumes acute, 1-nerved: flowering glumes about 1 line long, obtuse 
or rounded at the apex, sharply and distinctly 7-nerved, the furrows 
between the nerves evident. In wet soil, Alaska to California and Neb. 
43 PUCCINELLIA Parl. Fl. Ital. i, 366. 
Perennial grasses with flat or involute leaves and contracted 
or open panicles. Spikelets 2-10-flowered. Two lower glumes 
empty :. obtuse or acute, unequal: flowering glumes obtuse, or 
acute, rounded on the back, 5-nerved, the nerves very obscure or 
almost wanting. Palets about equalling the glumes. Stamens 3. 
Stigmas sessile, simply plumose. Grain compressed, usually 
adhering to the palet. | 
P. maritima Parl. 1. c. 370. Stems stoloniferous, 6-24 inches high, 
erect, or decumbent at base, smooth, simple: sheaths usually exceeding 
the internodes: ligules 4-1 line long: leaves 1-5 inches long, 1 Jine wide 
or less, flat to involute: panicle 2-6 inches long, open, its branches ascend- 
ing or rarely erect, 1-2 inches long: spikelets 3-10-flowered,3-7 lines long: 
empty glumes unequal, the first usually 1-nerved, the second 3-nerved: 
flowering glumes 144-2 lines long, obtuse or truncate. In salt marshes 
along the coast. 
P. angustata Nash Bull. Torr. Bot. Club xxix, 513. Poa angustata 
R. Br. Stems erect, 4-12 inches high, simple; sheaths usually longer 
than the internodes: ligules 1 line long: leaves 4-3 inches long, 1 line 
wide or less: panicle 1-2 inches long, contracted, its branches short and 
erect or appressed: spikelets 2-7-flowered, 3-4 lines long: empty glumes 
obtuse or rounded at the apex, the first 1-nerved, the second 3-nerved: ’ 
flowering glume 144-1) lines long, usually purplish, rounded at the apex. 
In salt marshes along the coast, Oregon to Alaska, and Labrador to Maine: 
also Europe and Asia. 
P. distans Parl. 1. c. 367. Glyceria distans Wahl. Stems 1-2 feet 
high, erect or sometimes decumbent at base, tufted: sheaths often shorter 
than the internodes, glabrous: ligules 4-1 line long: leaves 1-6 inches 
long, 1-2 lines wide, flat or folded, usually stiff and erect, smooth beneath; 
panicle 2-7 inches long, open, rarely contracted, its branches spreading 
or ascending, whorled, the lower 1-4 inches long, sometimes reflexed: 
spikelets crowded, 3-6 flowered, 114-214 lines long: empty glumes obtuse 
or acute, l-nerved; the second exceeding the first: flowering glumes 1% -1 
line long, obtuse, obscurely nerved. Along the coast of Washington, and 
on the Atlantic coast from Nova Scotia to New Jersey: also in Europe. 
P. Lemmoni Scribn. Am. Grasses ii, 276. Glyceria Lemmoni Vasey. 
Densely cespitose, with numerous involute-setaceous radical leaves, pale 
green and glaucous: stems slender, 4-16 inches high, smooth, simple: 
sheaths shorter than the internodes, smooth: ligules nearly 1 line long, 
acute: leaves setaceous, 2-4 inches long, smooth: paliisis Vng-eebehae 
often purplish, 1-4 inches long, open, its unequal scabrous branches 
spreading or ascending, the Jower 1-2 inches long: spikelets narrow, 
7-flowered, 2-3 lines long; first glume less than a line long; the second 
about twice as long: flowering glumes about a line long, abruptly pointed. 
In alkaline meadows: eastern Oregon to California and Brit. Columbia. 
44 PLEUROPOGON R. Br. App. Parry Voy. 286. 
Perennial grasses with flat leaves and rather few spikelets in 
