Can two different species of fungi from two different genus' mutate into a new species? i just want to know if it's a possibility, and how gigantic or slim the chances are of it happening.

Yes, it is possible.

Explanation:

In this case, I'm guessing you mean breeding.

If that's the case, they will form hybrids.

Between two different species, inter specific hybrids will be formed.

Between two different genus, intergeneric hybrids will be formed.

There's even rare cases of breeding between two families.

So while it is possible for different species and/or genus to breed and form new species, in interspecific breeding for instance, they will have features similar to the parents but turn out sterile.

So to answer your question, it is possible.

it also supports my hypothesis. if you rest first you can squeeze the clothespin more times. from the data i collected the average of the eight people concluded exercise makes your muscles more fatigued and less able to squeeze the clothespin compared to resting before squeezing.