Fig. S1 Pattern reconstruction for implementation of the null model of independence.

Fig. S2 Posterior probabilities (q) for 315 individuals growing in a hybrid zone containing three species of the genus Orchis (Orchis anthropophora, Orchis militaris and Orchis purpurea).

Table S1 Results of the test for independence; rank of goodness-of-fit (GoF) test for the independence null model conducted over distances up to 0.5 m

Table S2 List of fungal operational taxonomic units (OTUs) together with the proportion of individuals in which they were observed

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