TABLE OF CONTENTS 



SUMMARY '" 



ACKNOWLEDGEMENTS 'V 



INTRODUCTION 1 



STUDY AREA 2 



METHODS 8 



Ecological Methods ° 



Botanical Methods •' 



Taxonomic Considerations . 



RESULTS. 



.13 



16 



Ecological Results 1° 



FOREST AND WOODLAND VEGETATION TYPES 23 



Juniperus scopulorum / Oryzopsis micrantha Plant Association 23 



Pinus ponder osa / Juniperus communis Plant Association 25 



Pinus ponderosa/Pseudoroegneria spicata Plant AssoclaUon 27 



Pinus ponderosa / Schizachyrium scoparium CommunityType 29 



Populus deltoides / Symphoricarpos occ identalis Comm\xx\\ty Type 31 



Quercus macrocarpa/ Carex inops ssp. heliophila Plant Association 33 



Quercus macrocarpa / Symphoricarpos occidentalis Plant Association 35 



Artemisia cana / Pascopyrum smithii Plant Association 37 



Artemisia tridentata ssp. wyomingensis / P. smithii (Elymus lanceolatus) Plant Association 39 



Artemisia tridentata ssp. wyomingensis / Opuntia polyacantha Community Type 42 



Atriplex gardneri / Elymus lanceolatus Plant Association 44 



Chrysothamnus nauseosus / Eriogonum pauciflorum Community Type 46 



