Interesting. It would be reasonable to assume fungal spores could spread at the same rate in a direction as trees. I’ve heard recently (last year-ish) about a study done in South America that found fungi lowered the exchange ratio of nitrogen for carbon from trees because there’s so much carbon currently being taken in by trees compared to constant level of nitrogen in soil.

Well, that sound like a problem that is at least manageable since fungi have relatively short generation cycles unlike trees.