Tree/Mushtree

Mushtrees are naturally generated structures that act as light sources in Caves. They can be chopped down, which gives you 2 Logs and a Blue Cap. It doesn't seem like they are renewable, no items like a Pine Cone drop.

Behaviour
Mushtrees are not very similar to Evergreens. They provide a light source, and drop Food when chopped.

Trivia

 * This is the only way that Mushrooms can be obtained without Picking or Digging.
 * It is regarded as the easiest way to get Blue Caps, due to the eternal night.