18 
e Nn Blades 5 to 10 or rarely 12 cm. long, 3 to 4 mm. wide, linear, acumi- 
te, flat or involute, rigid, divergent or ascending, smooth and E on 
ihe sik, ee eee along the prominent nerves above. Spike 7 to 15 
m. long, loosely few-flowered, long-exserted. Empty glumes’ stout, setaceous, 
scabrous above. Flowering glumes 8 to 10 mm. long, linear-lanceolate, glau- 
cous, scabrous throughout, rounded on the back below, nerved above, entire, 
tipped with a stout, scabrous, spreading awn 4 to 8 cm. long. Palea as long as 
the flowering glume, scabrous on the margins above, obtuse. Joints of the 
rachis compressed, glaucous, 5 to 10 mm. long, linear. Closely related to 8. 
longifolium, but the culm leaves shorter and more rigid and the innovations less 
than half as long as the culms. 
^ Type collected by J. W. Toumey, No. 797, Tucson, Ariz., 1892. 
SPECIMENS EXAMINED, Colorado: Tracy, Earle & Baker, No. 4274, Hamors Lake, 
July 24, 1898; No. 429, Mancas, July 8, 1898; No. 4272, Durango, J uly 18, 1898. 
1896; No.912, Marshall Pass, July 27, 1896; No. 1003, Buena Vista, August 15, 
1896; No.814 and 833, Veta Pass, July 13, 1896; No.1096, Como, September 1, 
1896; No. 1240, Animas np, August 5, 1897. P. A. Rydberg, No. 2414, 
Georgetown, August 20, 1895; No. 2509, Boulder, September 3, 1895. Shear & 
Bessey, No. 1407, Egeria Park, August 4, 1898. Patterson, Georgetown, 1875. 
Wyoming: Thomas A. Williams, No. 2573a, Iron Mountain, July 2, 1897, and No. 
2621, Bear Lodge, July 23, 1897; A. Nel, No. 3952, Albany County; August 
9, 1897. 
? 
Utah: Marcus E. Jones, No. bd, Marvine Laceolite, July 23, 1894; No. 56840 
Sects Ellen, Henry Mountains, July 25,1894, and 5770p, Fish Lake, August 7, 
5, vt4? 7 
18. SITANION LONGIFOLIUM J. G. Smith, sp. nov. 
Culms 3 to 5 dm. high, stout, ascending, somewhat geniculate at the base, glaucous. 
Leaves of the en 1.5 to 3 dm. long, attenuate, involute, often as long 
as the culms. Nodes glabrous. Sheaths scabrous and glaucous, or more or less 
strigose-pubescent, or sparsely hirsute, longer than the internodes, loose, open 
at the throat, scarious along the margins above. Ligule entire, almost obsolete. 
Blades linear, pom ttenuate, acuminate, striate, smooth and glaucous or pubes- 
cent, or sparsely hirsute on the back, 1 to 2 dm. long, 1 to 3 o r 4 mm. wide. 
Spike 3 or somewhat nodding, 1 to 1.3 dm. long, rather loosely flo w- 
ered, its base inclosed in the inflated uppermost leaf-sheath. Spikelets 2 or 
rarely 3 at each node. Empty glumes subulate setaceous, divaricate, s scabrous, 
6 to 8 em. E Flowering glumes 8 to 11 mm. long, scabrous, glaucous, 
a stout, scabrous A awn 5 to 6.5 em. long. Palea as long as the flower- 
ing ghime, obtuse or bicuspidate, 3 on the nerves above. Internodes of 
the rachis compressed, glaucous, 6 to 8 mm. long. Closely related to S. brevi- 
fox from which it may be distinguished by the long attenuate flexuous leaves 
the culms and innovations and by the subflexuous spikes, inclosed at the 
ii in the uppermost leaf-shea this. 
v Type collected by C. L. Shear, No. 1213, near Silverton, Colo., August 4, 1897, among 
rocks on the open sides of a canyon, altitude 3,000 m. 
SPECIMENS EXAMINED, Colorado: J. Wolfe, No. 1161-2-3, Denver, 1873. C. L. Shear, 
No. 1152 and No. 1158, Ouray, July 4, 1897; No. 886, Villa Grove, July 24, 1897; 
No. 836, Veta Pass, July 15, 1896; No. 717, Idaho Springs, August 27, 1895. M. E. 
Jones, No. 531, Idaho Springs, August 1,1878. Tracy, Earle & Baker, No. 4275, 
Chicken Creek, July 6, 1898. P. A. Rydberg» No. 2497, Idaho Springs, August 
à; Kanon: C. B. Thompson, No. 21, Ulysses, June 26, 1893. 
