188 
Stipa spartea Trin. Mem. Acad. St. Petersh. ser, 6, 1, 82 (1829). 
Sand hills: Thedford, June 19 (No. 1402). 
Stipa comata Trin. & Rupr. Mem. Acad. St. Petersb. ser. 6, v, 75 (1842), 
Sand hills: Thedford, June 17; Norway, June 23; Dismal River, June 27; Mullen, 
July 17 (No. 1344). This and the preceding are said to make good hay if cut early. 
Stipa viridula Trin. Mem. Acad. St. Petersb. ser. 6, 11, 39 (1836). 
Rare; only one specimen in poor condition secured: Mullen, July 24 (No. 1598). 
Oryzopsis micrantha (Trin. & Rupr.) Thurb. Proc. Acad. Phila. 1863, 78 (1863) ; 
Urachne micrantha Trin. & Rupr. Mem, Acad. St. Petersb. ser. 6, v, 16 (1842), 
Inshady places, mostly in woods: Plummer Ford, July 3; Mullen, July 19 (No, 1482). 
Oryzopsis membranacea (Pursh) Vasey, Grasses S. W. pt, 2, t. 10 (1891); Stipa 
membranacea Pursh, Fl. ii, 728 (1814). 
In a canyon, near Middle Loup, north of Mullen, July 17 (No. 1550). 
Alopecurus geniculatus fulvus (J. KE. Smith) Scribn. Mem. Torr. Club, v, 38 
(1894); Alopecurus fulvus Smith, Engl. Bot. x, 1467 (1793). 
Near the river at Plummer Ford, July 4 (No, 1488}. It is regarded as a fair pasture 
grass, but is comparatively rare, and therefore of little importance. 
Muhlenbergia pungens Thurb. Proc. Acad. Phila. 1865, 78 (1863). 
This is one of the blowout grasses growing in the driest parts of the sand hills, 
generally in or neara blowout. Mullen, July 17 and 19, September 24; Cody’s Lakes, 
August 9; Thedford, September 9 (No. 1551). 
Muhlenbergia racemosa (Mx.) 3. 8. P. Cat. Pl. N. Y. 67 (1888); Agrostis racemosa 
Mx. F1. i, 53 (1803). 
Two forms were collected. One is strict and slender, with the flowering glumes 
cuspidate, and palets three-fourths the length of the glume. Meadows: Mullen, 
August 17; Thedford, August 19 (No. 1709). The other is branched near the base, 
and has the outer glumes with the awns one-half longer than the acute, but not 
pointed, flowering glume and palet, which are equal in length; hairs of the base of 
the flowers nearly one-half the length of the flowers. Thedford, September 13 
(No. 1762). One of the best hay grasses. 
Muhlenbergia mexicana (L.)-Trin. Unifl. 189 (1824); Agrostis mericana L. Mant. 
31 (1767). 
Of this species there were at least two distinct forms, one growing in the meadows 
and the other in the woods. The one which agrees best with the description in 
Mantissa, and may, therefore, be taken as typical, is nearly upright, resembling MV. 
racemosa in habit, but more slender and with a narrower spike. In a meadow on 
South Dismal River (where it filled a space of a couple of aeres and made a good 
hay crop), August 12 (No. 1686). More slender specimens were collected at Natick, 
September 11 (No. 1756), and a similar but shorter-leafed, purplish one at Thedford, 
September 13 (No. 1764). 
The other form, which perhaps deserves a varietal name, is more of the habit of M. 
sylvatica, from which it differs mainly in the lack of the awn. The plant is slender, 
prostrate, with broader leaves and a more branched panicle. In mine the flowering 
glumes are scarious except the green nerves. Among high bushes, near the river, 
Thedford, August 19 (No. 1704). 
Sporobolus cryptandrus (Torr.) Gray, Man, 576 (1848); Agrostis cryptandra Torr. 
Ann. Lyc. N.Y. i, 151 (1824). 
The most common form in Nebraska with more or less included spikes and lead- 
colored flowers, was collected at Mullen, July 24, and August 17; Cody’s Lakes, 
August 9 (No. 1697), 
Another form with exserted purplish panicle, with reflexed branches, was collected 
on the banks of Middle Loup River, Thedford, August 19 (No. 1705). 
