Horizons in Lichenolo- gy. 1988. (Reprinted from the Bot.Journal of the Linnean Soc., vol. 96, no. 1). figs. tabs. 100 p. gr8vo. Paper bd.

Contents (partly): Preface/ The variety of fungal-algal symbioses,their evolutionary significance, and the nature of lichens, by D.L.Hawksworth/ The establishment, individuality and growth of lichen thalli, by H.M.Jahns/ Understanding the pollution sensitivity of lichens, byD.H.S.Richardson/ Plate tectonics and the distribution of cool temperate Southern Hemisphere macrolichens, by D.J.Galloway/ An assessment of lichenometry as a method for dating recent stone movements in two stone circles in Cumbria and Oxfordshire, by V.Winchester/ Phytogeographical and ecological aspects of Lobarion communities in Europe, by F.Rose/Progress in the study of the lichen flora of the British Isles, byM.R.D.Seaward.