Koford 194 Cynomyx ludovicianus July 26, 1955 Wind Cave N.P., S. Dak. at another spot Schondardus; then Aristida; then Andropogon. Arist. field, mica less surrounds Ward D in variable belt. Main false present: Dys. pop. (40% - more in E 1/3); Euphalia (geyri) (30% - more in W 1/3), Verb. bract. (est. 25%); Das Aphandrea, Sol. trifl. locally common. One burrow near E. end Ward G (new pipe marker) recently dug out, apparently by badger. Much Marsilium (?) in a clump cut to 8" high (taller in June; now no cover for Alyssum). A. S.m. starts about 30' short of E. edge. At E. edge ground drops in draw; Androp. scop. & Baet. centip. dominate in draw, 4 no C.L. there. // E. side Ward D, salary to edge: cut a fly, then Bickler (some A. S.m. mixed); then (steeper, damp) Carex/Koelreuter Andropogon (pines close downhill). // On bench 10' above level stream led & between its Ward D (E. of), some old burrows, many vigorous falses in mounds, in area nearly gone A. S.m., about 12" tall, seed stalks to 18". One lodged, apparently a few weeks ago. Apparently unfavorable there or no present occupants, but saw 70 yds. S. on same bench (seen there in June too). An especially large mound on bench (18" deep, 8' diam.) made of gravel & course sand (1-2 mm. diam.); large because burrow cows in? To 10 yds. distant another burrow, about 1/3 of Steff boldened out; about 1' tall, cuttings now dry. // On S. part Ward D, near bottom, near road, 3 holes lodged (in past) within distance 50 yds. radial. // In area farthest S., where small openings in till Baja, I saw 1 jive. // Around some burrows Baja absent in area only about 6 yds. diam.; 4 much A.s.m. in (fairly seen Asm. americanus when Baja opened by C.L.). Some paths for 5 yds. thru Baja 18" tall, from opening to opening. // Ward A, I watched an stripping