CATALOGUE. 
377 
long ; lower palet acute, cuspidate or even sliort-awned, minutely pilose upon 
the midvein and margin. — Yosemite Valley, California, (6091 Bolander,) and 
near Donner Lake, (565 Torrej.) East Humboldt Mountains, Nevada, at 
7,000 feet altitude, (1,280,) and the short-awned form (1,281) in the Uintas, 
Bear River Canon, at 8,000 feet altitude ; August, September. The Califor- 
nian specimens are mostly annual. 
Agrostis scabra, Willd. From Florida to Canada, the Saskatchewan 
and Bear Lake, and west to Arkansas, Kansas and Dakota ; Unalaska ; Cali- 
fornia. East and West Humboldt Mountains and in Rul,)y Valley, Nevada ; 
5-7,000 feet altitude; August, September. (1,282.) 
Agrostis exarata, Trin. Steud. Gram. 165. Root biennial, fibrous ; 
culms simple, erect, 1-2° high; ligulcs obtuse, 1-2" long; Iciives flat, linear, 
(1-3" wide, 2-4' long,) the radical ones narrower ; somcwliat scabrous ; pan- 
icle usually contracted and dense, 2-4' long, the rays 3-5 or more at each 
axil, semi-verticillate, flowering from the base, erect ; glumes acute or sub- 
acuminate, scabrous on the back, shghtly unequal, 1-2" long; lower palet 
usually nearly a half shorter, erose-truncate, very rarely awned above the mid- 
dle, glabrous or a little hairy at base, the upper one a little smaller tlian the 
ovary. — Sitka and Unalaska, and from Washington Territory to California ; 
Colorado, (664 Vasey,) Arizona and New Mexico, East and West Humboldt 
Mountains, Nevada, on stream-banks ; 5-6,000 feet altitude ; August, Septem- 
ber. (1,283.) 
Var. {A. microphylla^ Steud. Syn. Gram. 164. Torrey, Pac. R. R. 
Surv. 4. 154.) Leaves and sheaths scabrous ; glumes nearly equal, tapering 
to a long slender point, the lower one rough on the keel ; lower palet less 
than half as long as the glumes, truncate with 4 short teeth at the summit, 
awned a little below the middle with a bent scabrous bristle, equaling or mon; 
frequently twice longer than the glumes, rarely wanting; upper palet small 
or nearly obsolete; callus somewhat bearded. — An examination of numerous 
specimens in Herbs. Torrey. and Eaton. s(;enicd to show this to Ix; distinct 
from the last species, though approaching it and both forms (piite varinhlc. 
Dr. Bolander, however, is confident of their identity. Common iji Calilornia. 
On the Truckee River and in the West Humboldt IVfountains, Neva<la ; 
4-5,000 feet altitude; July-November. (1,284.) 
Agrostis caxina, L. Maine to New York and in the mountains south- 
ward to North Carolina; Greenland, (Kane;) Sitka, (13ongard;) Wash- 
48 
