13 
upper leat sheaths, closely-flowered. Empty glumes 4, subulate or one of the 
lateral ones often lanceolate and 2-nerved, bifid from above the middle, scabr ons, 
reduced to subulate awns. Lower floret of the other hermaphrodite, the flower- 
ing glume 5 mm. long, lanceolate, strongly nerved and scabrous above the 
siiis, smooth below, n tipped by a slender scabrous, subflexuous awn 
about 3 cm. long. Palea as long as the flowering glume, bicuspidate. Secon 
floret 5 a wned. Amt N of the rachis 2 to 3 mm. long, spatulate, 
glabro 
“Type 8011 by L. Schoenefeldt, No. 3277, International Boundary pi varum. 
Jaeumba Hot S We ad near monument 233, altitude 900 m., May 24, 
Related to Sitanion multiset 
7. SITANION RIGIDUM J. G. Smith, sp. nov. 
vies 1 to 2 dm. high, terete, striate. Nodes glabrous. Shéaths longer than the 
rnodes, smooth and glaucous, or E lower ones hirsute, open nt the throat. 
Ligale cartilaginous, 1 mm.long. Blades 3 to 8 cm. long, 2 to 3 mm. wide, rigid, 
involute, smooth and glaucous on ds back, obtuse A acute at the apex, scab- 
rous along the margins and nerves above. Spike 2 to 8 em. long, ascending, 
serted its own length, or the base aid in ae uppermost leaf-sheath ; 
seis glumes 4 and entire, or 6 (i. e., the two lateral ones at each node divided 
to the very base) awned, strongly Givurlekts, 2 to 3 om. long. Lowest floret 
sometimes sterile, like the empty glumes. Spikelets few-flowered. Flowering 
glume 7 to 9 mm. long, linear-lanceolate, trifid, smooth and glaucous below, 
scabrous above, tipped with a stout, divergent awn 3 to 4mm. long. Internodes 
; o rachis 3 to 4 mm. long, compressed, scabrous on the margins. 
Type collected by O. D. Allen, No. 178, Cascade Mountains, Washington, 1896. Other 
specimens CE are Elmer, No. 1145, Washington, 1898; and G. R. Vasey, 
Washington, 1889; E. Brown, No. 372, north side of Mount Shasta, 5 
897; R. M. Horner, “he 579, Blue 9 Washington, July 29, 1897; A. Ne 
son, No. 1021, Union Pass, Wyoming, August 13, 1895; J. N. Rose, No. 271, Timber 
N northwest Wyoming, August 28, 1893; Frank Tweedy, No. 79, Teton 
Forest Reserve, Lm T 1897; and S. Watson, No. 1337, E. Humboldt 
This grass is related. to S. v eed differing i in the dwarf habit of growth and rigid 
glaucous leaves. 
8. SITANION CALIFORNICUM J. G. Smith, sp. nov 
Culms low, ascending, 1.5 to 2.5 dm. high, terete, striate densely pubescent above, 
t 
geniculate at t odes. Sheaths longer than the internodes, the lower ones 
densely hirsu he upper minutely puberulent, the uppermost many times 
longer than the blade. Ligule obsolete. Blade 2 to 8 em. long, 3 to 4 mm. wide, 
rigid, divaricate or ascending, Lore: striate, linear-lanceolate, abruptly 
contracted at the base, attenuate toward the obtuse or subacute apex, scabrous 
above and on the margins, ems discs on the back. Spike subflexuous, 
erect or ascending, loosely few-flowered, 5 to 8 em. long, barely exserted or the 
base inclosed in tha uppermost leaf-sheaths. Lowest floret of one of each pair 
of spikelets sterile. Empty g glumes 4, entire, subulate- 5 divaricate, 3 
t the 
tout 
awn about 4 cm. je arising from between two minute lateral seta. Palea 2 
mm.shorter than the flowering glume, truneate or obtuse, scabrous on the 
nerves above. sicci of the rachis compressed, 4 to 5 mm. long, scabrous 
Type collected by S. B. Parish, No. 3295, San OIE Syren 35 alti- 
tude 2,150 m., June 23, 1894. Closely related t rigidum, but with 1 
pubescent throughout and longer flowering glumes. 
