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<br />Table 6, (CONT'D) COVER, FREQUENCY AND IMPORTANCE VALUE SUMMARY FORT[-~ GRASSLAND REFERENCE <br />AREA AT THE WALDEN COAL PROJECT SITE. BASED ON 1997 (AUGUST 19) DATA FROM <br />FIF'CEEN 25-METER POINT TRANSECTS. +/- VALUES EQUAL THE STANDARD DEVIATION. <br /> Mean Relative Range of Percent Relative Importance <br />Species Cover Cover Cover Values Frequency Frequency Value Rank <br /> <br />Hymenoxys richardsonii 1.00 3.58 0- 3 66.67 7.14 10.72 l0 <br />Ipomopsts aggregate <O.OI <0.01 0- <l 0.00 0.00 0.00 l7 <br />Lesquerella ludoviciana <0.01 <0.01 0- <1 0.00 0.00 0.00 l7 <br />Paronychia sessiliJlora 2.33 8.35 0- 11 53.33 5.71 14.07 5 <br />Phloxhoodit 1.80 6.44 0- 5 73.33 7.86 14.30 4 <br />PhysariaJloribunda <0.01 <0.01 0- <1 0.00 0.00 0.00 17 <br />Sub-total 6.67 23.87 <br />SEMI-SHRUBS ORHALF-SHRUBS <br />~ <br />, <br />~ Artemisiafrigida 1.20 4.30 0- 3 73.33 7.86 12.15 8 <br />Sub-total 1.20 4.30 <br />SHRUBS <br />Artemisia tridentate 0.40 1.43 0- 2 26.67 2.86 4.29 14 <br />Ceratoides Janata 0.87 3.10 0- 3 40.00 4.29 7.39 13 <br />Chrysothamnus nauseosus 0.93 3.34 0- 4 46.67 5.00 8.34 12 <br />Chrysothamnus vaseyi 2.07 7.40 0- 6 73.33 7.86 15.25 3 <br />Chryso[hamnus viscid~orus <0.01 <0.01 0- <1 0.00 0.00 0.00 17 <br />Sub-total 4.27 15.27 <br />CACTI AND SUCCULENTS <br />Coryphantha missouriensis <0,01 <0.01 0- <l 0.00 0.00 0.00 17 <br />Sub-total <0.01 <O.OI <br />SUM OF SPECIES COVER 27.94 <br />