mushroom

Hi friends, I have very recently noticed two mushrooms sprout from the soil of my fukien tea tree. If i move the rocks above the soil, there are blankets of white fungus which i am sure is where the root of the white mushroom is. Anyway, are these good for my tree? bad?

@wireme Have you ever grown reishi? (Ganoderma lucidum) please don't call it ling chi. What do you think of this: http://www.fungi.com/product-detail/product/the-reishi-mushroom-patch.html I am seriously considering growing reishi and maitake for their medicinal value.