529 



Andropogon scoparius Mx. Fl. i, 57 (1803). 



A -wliolly smooth form, tufted, Avitli flattened, sheaths. Miuuokahta Phiins, alti- 

 tude 1,300 ni., August 5 (No. 1105). 



Phalaris arundinacea L. Sp. PI. i, .55 (1753). 



In a stream near Buffalo Gap, altitiule 975 ni., June 21 (No. 1100). 



Savastana odorata (L.) .Scribncr, Mem. Torr. Club, v, 31 (1894); fMciift odoraius 

 L. Sp. PI. ii, 1018 (17.53). 



Rare: Priugle, altitudes 1,500 m., August 5 (No. 1107). 



Alopecurus geniculatus fulvus (Smith) Scribn. Mem. Torr. Club, v, 38 (1894); 

 A. fiih-us Smith, Engl. Bot. t. 1467 (1793). 



. Connuou : Elk Canyon, altitude 1,200 m., June 29; Rochford, altitude 1,6.50 m., 

 July 11; Custer, altitude 1,600 ni., July 16 (No. 1108). 



Phleuni pratense L. Sp. PI. i, 59 (1753). 



Nfar a brook, south of Lead City, altitude 1,600 m., July 9 (No. 1109). 



Stipa spartea Trin. :\rem. 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. G, ii, 39 (1836). 

 Hills: Hot Springs, altitude 1,100 ni., August 3 (No. 1112). 



Stipa lichardsonii Link, Ilort. Berol. li, 245 (1833). 



This is the true S. richardsouii Link, according to Prof. F. LamsonScribner, not 

 the plantso named in Gray's Manual, AvLichis a distinct species, S.macoiinii Scribner. 

 As most descriptions refer to this latter, I at lirst thought that my plant was a new- 

 species and described it as folloNvs: Culms tufted from a short rootstock, slender, 6 

 to 9 dm. high, smooth; root leaves 1.5 to 2.5 dm. long, stiff, involute, from a loose 

 sheath, minutely scabrous; panicle of slender, llexuoso 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 4 mm. long, black when mature, thinly hairy all over ; awn 15 to 25 mm. long, bent 

 at the middle, the lower half twisted, slightly 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 Avooded hills: Rochford, altitude 1,700 in., July 12; Custer, altitude 1,600 m., 

 August 19 (No. 1113). 



Oiyzopsis asperifolia Mx. Fl. i, 51 (1803). 



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) ; Siipa juiuea Mx. Fl. i, 

 54 (1803). 



Together with the preceding (No. 1115). 



Oryzopsis micrantha (Trin. & Rupr.) Thurb Proc. Acad. Phila. 1863, 78 (1863); 

 Urachne micraniha Trin. & Rupr. Mem. Acad. St. Petersb. ser. 6, v, 16 (1842), 



Rare: Elk Canyon, altitude 1,200 m., June 29 (No. 1116). 



Oryzopsis cuspidata (Nutt.) Benth ; Vasey, Grasses U. S. 23 (1883); Eriocoma ciis- 

 pldaia Nutt. Gen. i, 40 (1818); Oryzopsis vumhranacea (Pursh) A'asey, Grasses S. W. 

 pt. 2, t. 10 (1891); Sfqm membranacca Pursh, Fl. ii, 728 (1814), not L. 



In canyons: Hot Springs, altitude 1,100 m., June 13 (No. 1117). 



Aristida fasciculata Torr. Ann. Lye. N. Y. i, 154 (1824). 



Custer, altitude 1,700 m., August 16; Hot Springs, altitude 1,100 m., August 3 

 (No. 1118). 



