While I understand that this follows Index Fungorum/MycoBank, I'd suggest that making changes to Lepista/Clitocybe nuda and related species right now is an exercise in futility. This will result in a number of users having their observations labeled under an inactive taxon, when the reality is that there is (as far as I can tell) no global consensus about Lepista/Clitocybe, largely because the resolution of the nomenclatural issue will (painfully) have to include Collybia...

I'd recommend holding off on further changes to this group, mostly due to the latter issue, but also because there are a number of undescribed taxa (the Western North American species (plural?) is/are apparently different from the type).