Grelet G-A, D Johnson, T Vralstad, IJ Alexander, and IC Anderson, New insights into the mycorrhizal Rhizoscyphus ericae aggregate: spatial structure and co-colonisation of ectomycorrhizal and ericoid roots. New Phytiologist 188:210-222. https://www.ncbi.nlm.nih.gov/nuccore/FN678848