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• <br />TABLE 19. SHRUB DENSITY DATA -MOUNTAIN BRUSH REFERENCE AREA, SENECA II MINE, PEABODY COAL - 1987 <br />i <br />rn <br />rn <br /> Stems per 50 s9 . m. <br />PLANT SPECIES Sample Number <br /> MBR-I MBR-2 MBR-3 M8R-4 MBR-6 MBR-6 MBR-7 MBR-8 MBR-9 AVG. M/50 s9. m. <br />Amelenchier elnifolie 0 6 3 8 7 17 5 5 3 6.0 <br />Arlemisia trident eta 0 0 0 0 0 0 0 0 9 0.9 <br />Populus tremuloides (sapiq) 0 9 I 6 4 0 0 0 0 1.7 <br />Prunus virginiena I6 1 5 6 B 2 II 7 4 6.7 <br />Ousrcus gambelii I 0 I 14 0 24 17 I6 2 b.2 <br />Ribes leptanthum 0 0 3 5 5 0 0 0 0 1.4 <br />Rosa woodsii I 0 0 8 0 3 4 0 2 2.0 <br />Symphoricarpos oreoDhilus SI 52 65 8 99 7 37 55 58 91.9 <br /> STD. DE V. <br />TOTAL STEMS PER 50 sq. m. 69 63 78 55 68 53 74 B2 73 68.3 10.5 <br /> Typical Heiqht (cm) <br />PLANT SPECIES Semple Number <br /> MBR-I MBR-2 MBR-3 MBR-4 MBR-5 MBR-6 MBR-7 MBR-b MBR-9 AVG.TYPICAL HGT. <br />Amelenchier alnifolia 0 60 0 300 300 400 300 300 350 223.3 <br />Artemisie tridentate 0 0 0 0 0 0 0 80 10.0 <br />Populus tremuloides (sepig) 0 50 500 90 90 0 0 0 91.3 <br />Prunus virgmiane 130 120 I60 250 100 IIO 130 I50 150 193.3 <br />Ouercus gambelii 400 0 300 400 0 500 900 400 900 311.1 <br />Ribes leptanthum ~ 0 0 30 30 50 0 0 0 13.8 <br />Rose woodsii 60 0 0 80 0 30 0 40 30 26.7 <br />Sympnoricarpos oreophilus 90 80 90 50 70 60 60 70 90 67.8 <br /> <br />