Giant Glowing Mushroom

Giant glowing mushrooms are destructible fungi that grow in Mushroom biomes. Like trees they can be cut down with an axe; yielding Glowing Mushrooms and, rarely, Mushroom Grass Seeds. Giant glowing mushrooms also give off light, like mushroom grass and glowing mushrooms do.

They have similar requirements as trees to grow:
 * The ceiling must be at least 15 tiles above the floor.
 * There must be no wall right on top of the floor for them to spawn, but there can be wall behind the floor and from 1 tile above it.
 * They will grow only when there's a flat patch of 5 blocks.
 * They will grow at least 2 tiles from each other.

Surface giant glowing mushrooms are distinct from their underground counterparts. On the surface, they are treated as similarly to Rich Mahogany trees as they can grow without saplings over time and can grow with branches, and every tile will drop a mushroom. Their graphics are also noticeably different.