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~ ~ ~ ~ ~ ~ ~ ~ w• ~ ~ ~ w• ~ ~ ~ ~ ~ ~ <br />Table 6. (ConYd) COVER, FREQUENCY AND IMPORTANCE VALUE SUMMARY FOR THE GRASSLAND REFERENCE AREA AT <br />THE WALDEN COAL PROJECT SITE. BASED ON 1998 (JULY 27) DATA FROM FIFTEEN 25-METER POINT TRANSECTS. <br />± 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 />Phlox hoodii 1.93 7.71 0 - 6 93.33 5.% 13.67 5 <br />Phlox longifolia <0.01 <0.01 0 -<1 6.67 0.43 0.43 22 <br />Physarra floribunda <0.01 <0.01 0 -<1 6.67 0.43 0.43 22 <br />Subtotal 6.80 27.13 <br />SEMI-SHRUBS OR HALF-SHRUBS <br />,~, Artemisia frigida 1.47 5.85 0 - 6 93.33 5.96 11.81 8 <br />'-' Subtotal 1.47 5.85 <br />SHRUBS <br />Artemisia hidentata 0.60 2.39 0 - 3 33.33 2.13 4.52 16 <br />Ceratoides Janata 0.60 2.39 0 - 3 80.00 5.11 7.50 12 <br />Chrysothamnus nauseasus 0.87 3.46 <I - 4 100.00 6.38 9.84 10 <br />Chrysothamnus vaseyi 1.60 6.38 <1 - 4 100.00 6.38 12.77 6 <br />Sub-total 3.67 14.63 <br />CACCI AND SUCCULENTS <br />Coryphantha missouriensis <0.01 <0.01 0 -<1 26.67 1.70 1.70 20 <br />Sub-total <0.01 <0.01 <br />SUM OF SPECIES COVER 25.60 <br />LICHENS <br />Parmelia rhlorochroa 9.00 2 - 21 100.00 <br />