stir a | GRAMINE 737 
to Washington. 
S. comata Trin. & Rupr. Mem. Acad. St. Petersb. (vi.) v, 75. Stems 
stout, 1-4 feet high, mostly scabrous: sheaths loose, the uppermost some- 
times inflated, smooth, at length shorter than the internodes: ligules con- 
spicuous, acute, 2-3 lines long: leaves smooth or somewhat scabrous, the 
. basal ones 44-4 as long as the stems, those of the stems 3-6 inches long, 
involute: panicle 6-9 inches long, loose, its branches 3-5 inches long, as- 
cending: empty glumes 9-12 lines long, glabrous, acuminate into an awn 
2-4 lines long: flowering glume 4-6 lines long; callus acute: awn slender, 
4-8 inches long, spiral and pubescent below: palet equalling the glume. 
On prairies, eastern Oregon to Brit. Columbia, Alberta, Nebraska and Cal. 
S. setigera Presl Reliq. Henk. i. 226. Stems stout, 114-3 feet high, 
often pubescent at the nodes: sheaths hairy at the throat. the lower 
shorter than the internodes: ligules truncate, about 1 line long: leaves of 
sterile shoots mostly involute, 44 as long as the stem, those of the stem 
2-3, often flat 6-18 inches long, 3-5 lines wide: panicle usually included at 
base in the upper sheath, 6-15 inches long, ita slender branches mostly in 
pairs: empty glumes subequal, or the upper shorter, long-acuminate, 3- 
nerved, 8-12 lines long: flowering glume 6 lines long, silky-hairy on the 
nerves, the callus sharp and curved: awn 3-5 inches long, twisted and pu- 
bescent below, geniculate and above the middle bent again. On dry hills, 
eastern Oregon to California, Texas and Kansas. . 
S. Kingii Bolander Proc. Ca!. Acad. iv, 170. Stems erect, smooth, 
5-12 inches high, naked above, with but 2 nodes near the base which are 
covered with the remains of many sheaths: radical leaves half as long as 
or equalling the stem, setaceously convolute, minutely scabrous, stem leaves 
2, the upper with close sheaths 3-6 inches long: ligule a line long, acute, of- 
ten cleft: panicle narrow 1-2 inches long, the short erect branches scabrous 
empty glumes obtuse, eroded and sometimes mucronate hyaline witha 
tinge of purple at base; the first one 144 lines long; stipe obconical scarcely 
acute short-bearded : flowering glume ovate, brownish-purple, pubescent: 
awn persistent, finely pubescent, loosely twisted and somewhat bent below 
the middle: palet broadly ovate, obtuse. Eastern Oregon to Nevada-and 
California. 
S. Bloomeri Bolander 1. c. 168. Stems 144-3 feet high, clothed at 
base with the remains of old sheaths: sheaths shorter than the internodes, 
the upper somewhat inflated: leaves very narrow and convolute, smooth 
or somewhat roughened, the lower ones about half as long as tire stems: 
panicle 6-12 inches long, erect, narrow, with distant branches: empty 
glumes 4 lines long, nearly equal, acuminate into a slender point, 3-nerved, 
minutely scabrous: flowering glume 2% lines long, minutely 2-toothed at 
the apex: awn 6-9 lines long, geniculate near the middle, almost plumose 
below, scabrous above: palet nearly as.long as the glume. Eastern Ore- 
gon to Nevada and California. 
S. Oregonensis Scribn. U. S. Dept. Agr. Div. Agrost. Bull. 17, 130. 
Stems erect, slender 12-18 inches high; pubescent at the nodes: sheaths 
rather loose, minutely hispid, longer’than the internodes ; ligules lacerate, 
the lateral teeth longer: radical leaves 10-15 inches long, involute; those of 
the stem 3-6inches long, conduplicate or involute, 1-2 lines wide: panicle 
narrow, included in the upper sheaths, the branches appressed, unequal, 1 
inch long or less: empty glumes lanceolate, slender-pointed, convex and 
herbaceous below, thin-membranous and carinate above, sometimes 73 - 
lish: first glume 5-6 lines long, second usually 44 line shorter: stipe slend- 
der, curved, acute, short-bearded: flowering glume thin-chartaceous, with 
2 ciliate teeth, pubescent, 5-nerved: awn twisted and pubescent below, 
naked above, usually bent twice, 1-2 inches long: palet lanceolate, cleft or 
erose dentate at the apex, pubescent between the 2 nerves, 144 lines long. 
