Correction to: Mycorrhiza (2021) 31:671–683 https://doi.org/10.1007/s00572-021-01051-4

The Publisher regret that the data of Table 1 in the published version of the above article were incorrect. The correct data of Table 1 should have been presented as follows:

Table 1 Factors that determine mycorrhizal data quality listed in increasing levels of complexity for each category. See Box 1 for limitations to use of data

The original article has been corrected.