= na — 
1903] NEW WESTERN PLANTS 59 
the edges; glumes 4-6, bifid to the base, narrow, 1-3 striate, 
nearly smooth toward the base, scabrous on the nerves, about 
1o™" long, gradually tapering into a scabrous awn 3-4™ long 
which is strongly recurved in age; lower palet 8™™ long, puberu- 
lent or scabrous on the 5 nerves, extending into a scabrous 
purplish awn 3—4° long; upper palet equal in length, finely 
scabrous on the 2 nerves above the middle, bidentate; anthers 
of the stamens 2™ long; styles 2, from the ciliate callous cap 
of the ovary; the two lodicules conspicuous; seed 6™™ long, 
pointed at the base, grooved on the side of the upper palet. 
It is quite similar to S. adbescens Elm., but may be recognized by the 
cinereous and ciliate pubescence of the sheaths and leaves. They may be 
found to intergrade, yet it seems best to recognize them as two forms. Mr. 
Kirk Whited collected it on dry rocky hills west of Wenatchee, Chelan 
county, Washington, June, 1901. Type specimen is in my herbarium. 
Sitanion strictum, n. sp.— A densely tufted annual or biennial, 
with cord-like roots covered with a woolly matrix. Culms strict, 
2-4%™ high, pubescent or nearly glabrous below the inflorescence. 
Leaves erect, conduplicate to involute, slender, sharply pointed, 
striate, villous on both sides, lower surface greenish, upper paler; 
Sheaths equaling the internodes, striate, soft pubescent, usually 
overlapping, the upper ones loosely inclosing the stems, the 
basal ones persistent and becoming marcescent; ligule nearly 
obsolete, Spike light green, subflexuose, generally much exceed- 
ing the upper sheath, 7~11°™ long; spikelets 2 at each joint, 
1—3-flowered, the lower flower usually fertile, 4-6™ long includ- 
ing the awns, readily breaking up at the joints; rachis 4™™ long, 
compressed, shining straw color; glumes 6-8, entire or parted 
from near the base and of different lengths, scabrous along the 
hyaline margins and on the strong ridge-like nerves, gradually 
extending into a slender scabrous awn 4™ long; lower palet 
puberulent for the lower two-thirds, scabrously 5-nerved toward 
the apex, 10™" in length, generally bearing 2 short bristle-like 
awns at the point of insertion of the slender scabrous awn 3—5°™ 
long ; upper palet equal in length, scabrous on the 2 nerves 
toward the apex, terminating in 2 unequal bristle-like scabrous 
awns ; stamens 3, anthers 2™™ long; the 2 styles distinct; ovary 
