The Biology of Mycorrhiza in the Ericaceae: I. The Isolation of the Endophyte and Synthesis of Mycorrhizas in Aseptic Culture

SUMMARY Techniques are described for the isolation of fungi inhabiting ericaceous roots and for the culture of mycorrhizas under aseptic conditions. The mycorrhizal status of a range of isolates is assessed and the distinctive features of the true endophyte are described. The biology of this fungus is considered with special reference to host specificity and its occurrence as a free living soil micro‐organism.