529 
Andropogon scoparius Mx. Fl. i, 57 (1803). 
A wholly smooth form, tufted, with flattened sheaths. Minnekahta Plains, alti- 
tude 1,300 m., August 5 (No. 1105). 
Phalaris arundinacea L. Sp. Pl. i, 55 (1753). 
In a stream near Buffalo Gap, altitude 975 m., June 21 (No, 1106). 
Savastana odorata (L.) Scribner, Mem. Torr, Club, v, 34 (1894); Holcus odoratus 
L. Sp. Pl. ii, 1048 (1753). 
Rare: Pringle, altitude 1,500 m., August 5 (No. 1107). 
Alopecurus geniculatus fulvus (Smith) Scribn. Mem. Torr, Club, v, 38 (1894); 
A, fulvus Smith, Engl. Bot. t. 1467 (1795). 
Common: Elk Canyon, altitude 1,200 m., June 29; Rochford, altitude 1,650 m., 
July 11; Custer, altitude 1,600 m., July 16 (No. 1108). 
Phleum pratense L. Sp. Pl. i, 59 (1755). 
Near a brook, south of Lead City, altitude 1,600 m., July 9 (No, 1109), 
Stipa spartea Trin. Mem. Acad. St. Petersb, ser. 6, i, 82 (1829). 
Hills: Custer, altitude 1,700 m., August 16 (No. 1110). 
Stipa comata Trin. & Rupr. Mem. Acad. St. Petersb. ser, 6, v, 75 (1842). 
Hills: Custer, altitude 1,700 m., August 16 (No. 1111). 
Stipa viridula Trin. Mem. Acad. St. Petersb. ser. 6, 11, 39 (1836). 
Hills: Hot Springs, altitude 1,100 m., August 3 (No, 1112). 
Stipa richardsonii Link, Hort. Berol. 1i, 245 (1833). 
This is the true S. richardsonii Link, according to Prof. F. Lamson-Scribner, not 
the plantso named in Gray’s Manual, which isa distinct species, S. macounii Scribner. 
As most descriptions refer to this latter, I at first thought that my plant was a new 
species and described it as follows: Culms tufted from a short rootstock, slender, 6 
to 9dm. high, smooth; root leaves 1.5 to 2.5 dm. long, stiff, involute, from a loose 
sheath, mimutely scabrous; panicle of slender, flexuose capillary branches, 1 to 1.5 
dm. long, which are generally in pairs; outer glumes ovate, membranaceous above, 
hyaline and acute, unequal, both 3-nerved, purplish when young; flowering glumes 
only 4mm. long, black when mature, thinly hairy allover; awn 15 to 25mm. long, bent 
at the middle, the lower half twisted, sightly hairy, It much resembles S. avenacea, 
but has a grain of only two-thirds the size and an awn scarcely one-half as long. 
On wooded hills: Rochford, altitude 1,700 m., July 12; Custer, altitude 1,600 m., 
August 19 (No. 1118). 
Oryzopsis asperifolia Mx. F1.1, 51 (18 3). 
Both this and the next are wanting in Coulter’s Manual. Sylvan Lake, altitude 
1,800 m., June 8 (No, 1114), 
Oryzopsis juncea (Mx.) B.S. P. Prel. Cat. N. Y. 67 (1888); Stipa juncea Mx, FI. i, 
54 (1803). ‘ 
Together with the preceding (No, 1115). 
Oryzopsis micrantha (Trin. & Rupr.) Thurb Proc. Acad. Phila, 1863, 78 (1863) ; 
Urachne micrantha Trin. & Rupr. Mem, Acad. St. Petersb. ser. 6, Vv, 16 (1842), 
Rare: Elk Canyon, altitude 1,200 m., June 29 (No, 1116). 
Oryzopsis cuspidata (Nutt.) Benth; Vasey, Grasses U.S. 23 (1883); Eriocoma cus- 
pidata Nutt. Gen. i, 40 (1818); Orysopsis membranacea (Pursh) Vasey, Grasses 8S. W. 
pt. 2, t. 10 (1891); Stipa membranacea Pursh, Fl. ii, 728 (1814), not L. 
In canyons: Hot Springs, altitude 1,100 m., June 13 (No, 1117). 
Aristida fasciculata Torr. Ann. Lyc, N.Y. 1, 154 (1824). 
Custer, altitude 1,700 m., August 16; Hot Springs, altitude 1,100 m., August 3 
(No. 1118). 
