Differences in mycorrhizal communities betweenEpipactis palustris,E. helleborineand its presumed sister speciesE. neerlandica

In orchid species that have populations occurring in strongly contrasting habitats, mycorrhizal divergence and other habitat-specific adaptations may lead to the formation of reproductively isolated taxa and ultimately to species formation. However, little is known about the mycorrhizal communities associated with recently diverged sister taxa that occupy different habitats.