The only specific fungus identified from shellbark hickory roots is an ectotrophic mycorrhiza,"
2.
In this respect, the mode of development of R . lignosus is characteristic of an ectotrophic growth habit.
3.
Like other species of " Lactarius ", candy caps are generally thought to be ectotrophic, with " L . camphoratus " having been identified in ectomycorrhizal root tips.
4.
Due to the typically elevated fruiting habit and occurrence on dead wood, the ectomycorrhizal status of " B . ananas " has been debated; in the protolog Murrill noted " it always occurs either as a wound parasite on pine trunks or about the base of living pine trees . " All collections have been made in association with ectotrophic host trees including " Pinus " and " Quercus " species in southeastern North America and Central America, " Quercus humboldtii " in Colombia, various Fagaceae and Dipterocarpaceae species in Malaysia, and " Leptospermum " and " Pinus " species in New Zealand.