Though formerly recognized as the type genus of endomycorrhizal fungi, Endogone is now known to be ectomycorrhizal. Arbutoid mycorrhizas of Arbutus menziesii with Lactarius deliciosus. Transverse section of arbutoid mycorrhiza of Arbutus menziesii with Lactarius deliciosus. Note mantle, and cortical cells filled with hyphae. Arbutoid mycorrhiza - high power view of part of section shown above.
Dark blobs are masses of fungal hyphae in cortical cells of root.