CLEMENTS 



PLATE 4 



A. l'roUc('(i pjisture in A rUl ida-JJoukloua a-ssocialioii, riautu Rita Range Reserve, Tucson, 



Arizona. 



B. Fenced quadrat in rotation pasture, Bouteloua eriopoda consociation, Jornada Range 



Reserve, Las Cruces, New Mexico. 



