My application is I want to be able to drill a hole and fill it with food and fungal spores. Later I want to come back and harvest a giant mushroom which will

My application is I want to be able to drill a hole and fill it with food and fungal spores. Later I want to come back and harvest a giant mushroom which will be full of lithium that the mycelium has pulled from the ground and concentrated at the surface. Can you suggest a species for me to use? I know that there are ones that do this, more or less, for arsenic, but I want lithium instead.