758 GRAMINEZ POA 
margined above, ‘about 2 times long: palet nearly or quite equalling the 
glume. Olympic Mountains Washington at about 6000 feet elevation. 
P. occidentalis Vasey & Scribn. Cont. U. S. Nat. Herb. i, 274. A 
loosely tufted, perennial: stems slender, 2-3 feet high, rather weak, more 
or less scabrous: sheath shorter than the internodes: ligules ovate, 114-2 
lines long, leaves of the stems 3-6, flat, 2-7 inches long, 1-3 lines wide: 
panicle 4-10 inches long, its filiform branches in pairs or threes, or solitar 
below, the longest 2-6 inches long, bearing 2-6 spikelets near the extremi- 
ties: spikelets ovate or ovate-lanceolate, 3-4 lines long, usually 4-flowered : 
first empty glume lanceolate, l-nerved, 134 lines long, acuminate; second 
ovate-lanceolate, 214 lines long; flowering glumes oblong-lanceolate, 244-3 
lines long. acute, very thinly pubescent on the marginal nerves and the 
lower half of the keel: palets nearly as long asthe glume. In moist woods, 
northern Oregon to Alaska. 
P. Kelloggii Vasey Grasses Pac. Slope, ii, 79. Stems tufted, from 
stoloniferous rootstocks, slender, 2-3 feet high: leaves from the base num- 
erous with short scarious sheaths, and flat or loosely involute blades 6-12 
inches long: leaves of the stem usually 3: sheaths nearly smooth, nearly 
equalling or exceeding the internodes, the upper one extending nearly to 
the panicle: ligules 1 line long, or less: panicle pyramidal, open, its scab- 
rous branches divergent or horizontal, 1-3 inches long: spikelets oblong, 
compressed, 3 lines long, loosely 2-3-flowered: empty glumes ovate, acute, 
hispid on the keel, the first 1-nerved, 144 lines long; the second 4 line 
longer and 3-nerved,; flowering glumes lance-ovate, acute, smooth except 
the long thin web at the base, 5-nerved nearly to the apex, the midnerve 
barely excurrent, about 2 lines long: palet linear-oblong, 2-toothed, 
nearly smooth on the green keels, 14 line shorter than the glumes. Eas- 
tern Oregon to California. 
P. Bolanderi Vasey Bot. Gaz. vii, 32. A. loosely tufted perennial: 
steme erect, or slightly geniculate below, somewhat thickened at the base, 
smooth: basal leaves thin and lax, smooth, 3-6 inches long, of the stems 
3-4: sheaths smooth, closed at the throat, shorter than the internodes: 
ligules obtuse, 144-2 lines long: stem leaves 2-4 inches long, about 2 lines 
wide, flat, rather abruptly pointed, thin and smooth: panicle erect, slen- 
der, 4-6 inches long, its branches smooth, 2-4 at each of the 4 or 5 distant 
nodes, erect or at length spreading: spikelets 1-3-flowered, 144-2 lines 
long : empty glumes ovate, nearly acute, smooth, the first 1-nerved, 1 line 
long, the Second obscurely 3-nerved and longer: flowering glumes ovate- 
oblong, obtuse or barely acute, scarious-margined, nearly smooth except 
the slight web at the base, 5-nerved, 114 lines long: palet oblong, obtuse, 
green, nearly smooth, slightly shorter than the glume. In moist places in 
the Coast Mountains, Oregon to California. 
P. Howellii Vasey & Scribn. Cat. Grasses U. 8. 82. A densely tuf- 
ted pale green perennial with fibious roots: stems erect, nearly smooth, 
1-2 feet. high: sheatlis nearly smooth, half open above, shorter than the 
internodes: ligules 2-3 lines long, obtuse and lacerate at the apex: basal 
leaves numerous, flat, thin, 3-6 inches long, 1-2 lines wide; of the stem 
2 or 3, flat; or involute near the attenuate points, 2-4 inches long: panicle 
rather loose and open, 5-8 inches long, its branches 2-5 at each of the 5 or 
6 nodes, erect until near maturity, the longer 2-3 inches long: spikelets 
2-3 lines long, loosely 2-5-flowered : empty glumes ovate, acute, thin, green, 
sparingly hispid'on the keels, 1-144 lines long: flowering glumes ovate, 
acute, green except the narrow membranous, margins, pubescent through- 
out, 5-nerved, 114 lines long: web at base thin, about as long as the glume: 
palet oblong,'emarginate, nearly smooth, on the green keels, slightly shor- 
ter than the glume. In dry open places in forests, western Oregon to Cal. 
P. purpurascens Vasey Bot. Gaz. vi, 297. Stems wiry, erect, 1-2 
