Koford 270 Cynomys ludovicianus September 21, 1955 Scotts Bluff, Nebraska Woods and dude. Bare and adjacent: Sphaerulae campana, & Sika (not prorata) Others: Agropappus, Liatris (blooming), Panicum, Kygosbun, Cuph. (geyri?), Phleu (hoodi?) (no sweet clover), Cryptandra, Schism; Another area of main colony on plot had 50% Carex, 4 5% Stipa Can., 5% others. Mid. areas about 80% bare in grad. Photots saw in Kodeshane 35 mm. II Bare areas of prairie often surrounded by wrigman Bout. groe.- many 4 tall sedetalks - the other grasses don't invant a few feet away. II On a lower bench near grillly bottom also old dude, but Asm dominant (60%), Carex 20%, Bgr 10%, weeds & fels (Sika, Art. frig., pramint) 5%. Stipa rare. II All areas have 1/3 to 1/2 bare ground between tufts; lose bare where shot passes trifle lie. II In NW arm many Art. frig. Bushes, 2' tall in brenaw area. C.l., probably kept these down, Occas. Attriply canne, bush, Ant manfrs rare & low. Many Gophus mounds in some parts old tainisiti; No communs droppings found, no vocke, licit rabbit droppings present, NW area has Stipa dominant, & Art. frig. Area old mound stops at upslope side about where afr - Stipa zone stops. Upslope in area 2' tall Cryptostis ?, Carex 20%, Bout. cut, 5%, And. spp. 5%. # Slope stripew many ydo. Beyond when there midgrose become dominant. II N E arms of colony also ascends slope. area of C.l. about 80% Stipa, + Bgr, Bcm, Asm. Common Attriply & Artensia bushes. Just beyond dog area, where slope stripew but also alongside dog area or E, Androp. Slope dominant, 2' tall, with somewhat less Cryptostis?. There 2 species seem to indicate area when C.l. did not penetrate (where water on slope ?), but what there 10 yrs. ago? Are now red-brown,