530 
Muhlenbergia racemosa (Mx.) B.S. P. Prel. Cat. N. Y. 67 (1888); Agrostis racemosa 
Mx. FI. i, 53 (1803). 
A tall and leafy form which may perhaps be referred to the variety ramosa. Com- 
mon on French Creek, altitude 1,600 m., July 22 (No, 1120). 
A few specimens were collected near Custer, altitude 1,100 m., August 1, which 
differ in being more slender and in the empty glumes having longer awns (No. 1121). 
Sporobolus cryptandrus (Torr.) Gray, Man. 576 (1848); Agrostis cryptandra Torr. 
Ann. Lye. N. Y. i, 151 (1824), 
Table-lands: Hot Springs, altitude 1,100 m., August 10 (No. 1122), 
Sporobolus heterolepis Gray, Man. ed. i, 576 (1848); Vilfa heterolepis Gray, Ann. 
Lyc. N. Y. iii, 233 (1835). 
Rare: Pringle, altitude 1,500 m., August 5 (No, 1123). 
Sporobolus cuspidatus (Torr.) Scribner, Bull. Torr. Club. x, 63 (1882); Vilfa 
cuspidata Torr.; Hook. Fl, Bor. Amer. ii, 238 (1840). 
In Gray’s list, Newton & Jenney’s Report.! 
Agrostis alba L. Sp. PI. i, 68 (1753). 
In wet meadows below Custer, altitude 1,600 m,, August 1 (No. 1124). 
Agrostis exarata Trin. Unifl. 207 (1824). 
Rare: Hot Springs, altitude 1,050 m., August 10 (No. 1125). 
Agrostis hiemalis (Walt.) B.S. P. Cat. Pl. N. Y. 68 (1888); Cornucopia hyematlis 
Walt, Fl. Car. 74 (1788), teste Mx. 
The specimens have broad, upright leaves, Wet meadow: Custer, altitude 1,600 m., 
July 16 (No. 1126). ; 
Calamagrostis canadensis Mx. Beauv. Agrost. 15 (1812); Arundo canadensis Mx. 
F1. i, 73 (1803). . 
In my specimens the leaves are more or less involute. Along Fall River, Hot 
Springs, altitude 1,050 m., Angust 10 (1128). 
Calamagrostis canadensis dubia (Scribner) Vasey, Contr. Nat. Herb. iii, 80 
(1892) ; Deyewxria dubia Scribner, Bot. Gaz, xi, 174 (1886). 
Wet meadow, below Custer, altitude 1,600 m., August 16 (No. 1127) 
Calamagrostis neglecta (Khrh.) Gaertn. Fl. Wett. i, {1 (1799); Arundo neglecta 
Ebrh. Beitr. vi, 187 (1791). 
Rare: Hot Springs, altitude 1,050 m., August 3 (No. 1129). 
Calamagrostis sylvatica americana Vasey, Contr. Nat. Herb. iii, 83 (1892), 
Very probably this is a distinct species. It differs much from C. sylvatica of 
Europe. Woods: Rochford, altitude 1,650 m., July 11 (No. 1130). 
Calamovilfa longifolia (Hook.) Hack. True Grasses, 118 (1890); Calamagrostis 
longifolia Hook. Fl. Bor, Amer, ji, 241 (1840). 
Hot Springs, altitude 1,100 m., August 9 (No. 1131). 
Avena striata Mx. I]. i, 73 (1803). 
In woods: Elk Canyon, altitude 1,200 m., June 30; Custer, altitude 1,700 m., 
July 16 (No. 1182). 
Danthonia spicata (l.) Beauyv.; Roem. & Schult. Syst. Veg. ii, 690 (1817); Avena 
spicata L. Sp. Pl. i, 80 (1753). ; 
In woods, not uncommon: Rochford, altitude 1,700 m., July 12; Custer, altitude 
1,650 m., August 16 (No. 1133). 
Schedonnardus paniculatus (Nutt.) Trelease; Branner & Coville, Rep. Geol. 
Surv. Ark, 1888, pt. 4, 236 (1891); Lepturus paniculatus Nutt. Gen. i, 81 (1818). 
Very rare: Hot Springs, altitude 1,100 m., June 19 (No, 1134), 
' Geol. Surv, Black Hills, 537 (1880). 
