263 
glumes 2.5 to 3 lines long, lance-oblong, subacute, scarious at the apex, minutely 
scabrid throughout, slightly more so on the keel, intermediate nerves rather 
indistinct; palet nearly equaling the glume, scabrous on the keels.” 
Frequent on rocky hillsides, island in Clearwater River, near Upper Ferry, 
above Lewiston; May 2(No. 86). Northern slopes, on Hatwai Creek, Nez Perces 
County; May 6 (No. 138, type number). 
Poa flava L. Sp. Pl. i, 68 (1753); Poa seretina Ehrh, Beitr. vi, 83 (1791). 
Wet places, near Farmington Landing, Lake Coeur d'Alene; July 4 (No. 543). 
Sandy soil, valley of Cwur d’Alene River, Kootenai County; July 12 (No, 632), 
Bottom lands, same locality; July 13 (No. 644). Moist places, valley of Big 
Potlatch River, Nez Perces County; June 9 (No. 1051). 
Poa nemoralis L. Sp. Pl. i, 69 (1753). 
Sandy soil, Farmington Landing, Lake Coeur d’Alene; July 4 (No, 545), 
Poa nevadensis Vasey, Bull. Torr. Club, x, 66 (1883). 
Frequent by roadsides, valley of Clearwater River, Nez Perces County; May 
30 (No. 266). Banks of Big Potlatch River, Nez Perces County; June 4 (No. 305), 
Roadsides, same locality; June 9 (No, 354). Copses, same locality; June 9 (No. 
375). Near Viola, Latah County; June 26 (No. 505). 
This robust long-leafed ‘‘mountain blue grass” is one of the most valuable 
forage grasses in the region where it grows, and it is apparently well worthy 
of being tried in cultivation. 
Poa pratensis L. Sp. Pl. i, 67 (1753). 
Sparingly in meadows, head of Little Potlatch River, Latah County; June 18 
(No. 437). Along creeks, 4 miles east of Farmington, Latah County; June 28 
(No.515). Sandy soil, Farmington Landing, Lake Cour d’Alene; July 4 (No, 546), 
Numbers 437 and 546 represent a peculiar mountain form of this species, some- 
what more robust than usual, with a rather loose panicle of spikelets slightly 
larger than the average size of those in the eastern form, and usually more or 
less brightly colored with purple, often appearing almost iridescent through the 
coloration of the floral glumes. This form and also numerous intermediate 
forms connecting this with the typical form of the species have been collected 
in many localities in the Rocky Mountains from Northern Arizona and New 
Mexico to British America. It has been cultivated with success at one of the 
Canadian experiment farms. 
Poa sandbergii Vasey, Contr. Nat. Herb. i, 276 (1893). 
‘¢ Culms tufted, 10 to 16 inches long, slender, upper portion naked, the lower 
portions bearing about two sheaths with very short blades; leaves 2, the blade 
1 inch long or less; ligule about 1 line long; panicle 1.5 to 3 inches long, some- 
times very narrow, or less than 1 inch wide, the branches ascending, nearly 
smooth, the lower in twos or threes, unequal, the longer one 1 to 2 inches long, 
spikelet-bearing above the middle; spikelets short-pediceled, 2- to 4-flowered 
about 3 lines long, often purplish; empty glumes lanceolate, subacute, about 
two-thirds as long as the adjacent florets; floral glumes linear-oblong, obtuse, 
nearly 2 lines long, sparsely pubescent or puberulent, somewhat villose near 
the base but not webbed, searious at the apex; palet equaling its glume, pubes- 
cent on the keels; internode of the rachilla puberulent, one-half line long.” 
‘It approaches some forms of Poa tenuifolia Nutt., from which it may be dis- 
tinguished by its smaller spikelets, shorter florets, and more pubescent floral, 
glumes.” 
Grassy slopes, valley of Clearwater River, Nez Perces County; May I, 
(No. 164). 
2580—No, 4——d 
