The Acid Mushroom looks like a short green mushroom. It gives off a green glow that illuminates the surrounding blocks. This is very useful when hunting for these items. This item appears in the Organic Section of the player's inventory.
How to Obtain
The Acid Mushroom can be found in Temperate Worlds but not in Hell Worlds or Arctic Worlds. Acid Mushrooms spawn in or near pools of Acid. This can add to some complications to retrieving them. To get the Acid Mushroom, one has simply to mine it.
The Acid Mushroom has a use in getting the Forager Achievement. It will eventually be used in Mushroom Wine.
The Acid Mushroom was added in the middle of 2013 in the massive Mushroom Revamp update.