262 
Trisetum subspicatum (L.) Beauv. Agrost. 88 (1812); Aira subspicata L. Syst Veg. 
ed. 10, 673 (1769), 
Mountains, south end of Lake Pend d’Oreille; August 3 (No. 819). Mountains 
of Packsaddle Peak, Kootenai County ; August 6 (No. 848). 
Danthonia californica Boland. Proc. Cal. Acad. ii, 182 (1862-63). 
Meadows, head of Little Potlatch River, Latah County; June 21 (No. 476). 
Danthonia californica unispicata Thurb. Bot. Cal. ii, 294 (1880). 
Dry hills, head of Little Potlatch River, Latah County; June 20 (No. 453). 
Spartina cynosuroides (L.) Willd. Enum. P1. 80 (1809); Dactylis cynosuroides L. Sp. 
Pl. i, 71 (1753), 
Shores of Lake Tesemini, Kootenai County; July 21 (No. 691). 
Koeleria cristata (L.) Pers. Syn. i, 97 (1805); Aira cristata L. Sp. Pl. i, 63 (1753). 
Sandy soil on Little Potlatch River, Nez Perces County; June 7 (No. 333). 
Melica subulata ((Griseb.) Scribner, Proc. Acad. Phila, 1885, 47 (1885); Bromus subu- 
latus Griseb. Fl. Ross. iv, 358 (1849); Melica acuminata Boland. Proc. Cal. Acad, 
iv, 104 (1866). 
Frequent in canyons, valley of Little Potlatch River, Latah County; June 13 
(No. 387). Mountains, south end of Lake Pend d’Oreille; August 11 (No. 827). 
Poa annua rigidiuscula var. nov. 
Culms 15 to 20 cm, high, rather robust, striate, glabrous, leafy to the middle, 
tufted from running rootstocks, evidently perennial; leaves flat, mostly erect, 
abruptly acute or rounded at apex, 2 to 4 mm. wide, 2 to 5 em. long; ligule 
obtuse, about 2 mm. long; sheaths smooth, shorter than the internodes, the 
lower ones membranaceous, the upper one keeled; panicle pyramidal, 3 to 4 em. 
long, and spreading to nearly that width at the base; axis rigidly erect with 5 or 
6 nodes; rays 2 to 4 at the base, 2 or single above, spikelet-bearing beyond the 
middle, smooth, rigid, and divaricate, or somewhat reflexed; spikelets 3- to 5- 
(usually 4-) flowered, about 5 mm. long; empty glumes smooth, nearly equal in 
length, nearly two-thirds as long as the lower floret, the first narrowly ovate, 
acute, the second broadly lanceolate, obtuse; floral glume 3mm. long, broadly 
lance-oblong, obtuse, membranaceous above, prominently ciliate on the 5 nerves 
below the upper third; palet about one-fourth shorter than its glume, promi- 
nently ciliate on the keels; grain yellow, subtranslucent, slightly rugose under 
the lens, 1.5 mm. long, one-third as thick, slightly tlattened or triquetrous, with 
a tuft of hairs at the apex. This variety differs from the type of the species in 
the running rootstock, rather robust rigid culms, short subobtuse leaves, rigid 
panicle, larger florets, and pubescent floral glumes. 
Type specimen collected at Lapwai Agency, Nez Perces County, by J. H. 
Sandberg; May 5, 1892 (No. 134). Also found on the plains of eastern Oregon, 
It is said to be common in rich soil in this region. 
Poa compressa L. Sp. Pl. i, 69 (1753). 
Dry hillsides near Farmington Landing, Lake Cour d’Alene; July 2 (No. 534), 
Poa filifolia Vasey, Contr. Nat. Herb. i, 271 (1893). 
“Culms densely clustered, from a slender rootstock, erect, slender, 16 to 24 
inches high, with 2 or 3 distant, narrow, short-bladed leaves; radical leaves 
abundant, filiform, 6 to 10 inches long, flaccid, erect; leaves of the culm 2 to 3, 
distant, with long sheaths and short (1 to 3 inches), erect, filiform blades; ligule 
less than 1 line long, acute; panicle loose and flexuous, 3 to 4 inches long; 
branches capillary, scabrous, rather distant, the lower in twos or threes, 
unequal, the longer about 1.5 inches long, with few spikelets near the extremity, 
naked below; spikelets compressed, 3 to 5 lines long, rather loosely 5- to 
7-flowered, on filiform pedicels; empty glumes nearly equal, one-third shorter 
than the adjacent florets, lance-ovate, acute, broadly scarious-margined; floral 
