Long Description of Figure 4:

Effect of treatment on numbers of ectomycorrhizal tips per seedling after 3 years (harsh site - numbers are approximate) -- 1. Mound and competition: Western white pine/a treatment - 18 tips/seedling, Douglas-fir/x treatment - 13 tips/seedling; 2. Mound and no competition: Western white pine/ab treatment - 46 tips/seedling, Douglas-fir/x treatment - 10 tips/seedling; 3. Scalp: Western white pine/b treatment - 70 tips/seedling, Douglas-fir/y treatment - 25 tips/seedling; 4. Control: Western white pine/a treatment - 33 tips/seedling, Douglas-fir/xy treatment - 29 tips/seedling.