Supplement 1. Fungal taxa and their abundances.

File List data.txt (MD5: c59bbc959c1dd3045dd953347a84e439) Description The data.txt file is a tab-separated text file. This file contains a record for each fungal species identified by Sanger Sequencing in this study. For each record, the following information is given: Genus Name = name of fungal genus Species Name = name of fungal species GenBank Nearest Match = GenBank accession number for best match Proportionate Abundance, Field Survey = proportion of mycorrhizal field survey root tips identified as this species Proportionate Abundance, Bioassay = proportion of mycorrhizal bioassay root tips identified as this species Ectomycorrhizal Status = designation as either mycorrhizal or non-mycorrhizal based on Comandini et al. (2012) as described in methods in main text Native Status = designation as either native or non-native based on the NZFungi database, the GenBank reported location of the closest matching sequence, and lists of McKenzie et al. (2000) and Orlovich and Cairney (2004), as described in methods in main text Endemic Status = designation as either endemic or non-endemic based on the NZFungi database, the GenBank reported location of the closest matching sequence, and lists of McKenzie et al. (2000) and Orlovich and Cairney (2004), as described in methods in main text