Four new Species of Grasses from Washington 
By C, V. PIrer 
Elymus curvatus 
Culms erect, often geniculate at base, about one meter high, 
glabrous; nodes glabrous: culm-leaves four or five; sheaths 
glabrous, the upper exceeding the internodes, the lower ones usu- 
ally shorter; ligule none; blades flat, 15-20 cm. long, 5—7 mm, 
wide, scabrous on both sides, especially beneath: spikes stout, 
erect, barely exserted from the uppermost sheaths, 10-12 cm. long, 
green: empty glumes lanceolate, rigid, thick, 3-5-nerved, scabrous 
on the margins and on the nerves above the middle, acuminate, 
13-17 mm. long, often curved or twisted, shining: spikelets 2—-4- 
flowered, mostly 3-flowered: flowering glumes pale, 3—-5-nerved 
near the apex, sparsely hispidulous above the middle, oblong- 
lanceolate, acuminate, 8-10 mm. long, tipped with a straight awn 
I~2 mm. long: palea hardly equalling the* flowering glume, 
scabrous-ciliate : internodes of the rachis 4—7 mm. long, scabrous 
on the nerves, apex and margins. 
A peculiar species not closely related to any other known to 
me. Collected by Mr. Frank O. Kreager, no. 375, in Box Cajfion, 
Pend Oreille River, Stevens County, Washington, Aug. 2, 1902. 
Sitanion velutinum 
Culms tufted, erect, rigid, densely puberulent, 30-40 cm. high : 
innovations few, short: sheaths exceeding the internodes, rather 
closely fitting, open in the throat, densely and minutely velutinous ; 
blades flat, lanceolate, gradually attentuate from base to apex, acute, 
erect or divergent, densely puberulent on both sides ; culm-leaves 
three or four, the lower 6—10 cm., the upper 2-4 cm. long; ligule 
obsolete: spikes well exserted, stiffly erect, 4-8 cm. long without 
the awns: spikelets two at each node or rarely one, the lower 
1~2-flowered and frequently sterile, the upper 2~4-flowered, one 
to three of the florets fertile: empty glumes subulate, puberulent, 
5-7 mm. long, mostly entire, but one or two often cleft and bear- 
ing a short lateral awn or rarely cleft to the base, each tipped with 
a scabrous spreading awn 3-5.5 cm. long: flowering glumes lan- 
ceolate, puberulent, 9-11 mm. long, 3-nerved above, trifid, the 
lateral lobes 1 mm. long, the stout awns 3~5.5 cm. long: palea 
as long as the flowering glume, acute, scabrous on the nerves: 
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