“…As a consequence, 'early stage' and 'late stage' fungi were distinguished, thus reflecting the observations that initial colonizers of tree roots, such as Laccaria and Hebeloma species, are followed or replaced 6-10 yr after planting by, e.g., Lactarius, Amanita and Russula species (Mason et al, 1982;Last et al, 1983 Deacon et al, 1983).…”