%0 Generic %D 1991 %T Comparisons of 3 Woodland Sites in NW Britain Differing in Richness of the Epiphytic Lobarion-Pulmonariae Community and Levels of Wet Acidic Deposition %A Farmer, A.M. %A Bates, J.W. %A Bell, J.N.B. %B . Holarctic Ecology %V 14 %P 85-91