Bloody "Volcano" Forms in the middle of Branch

We always wonder how volcanoes form on edges of tectonic plates, perhaps, this picture gives you another idea how volcanoes form. The residue pressure inside the wood vessels pushes the bloody liquid out of the branch, becomes sticky fluid as it exposes to air, then the bottom pressurised liquid pushes up the fluid and forms "volcano" shape. As time passes, the volcano will harden. This volcano will not explode, it forms hill and mountain!