Gummy substance & Musrooms from trees at Iguazu Falls Brazilian side MG_9462

I don’t have a name for this “gummy substance” that I spotted in a number of trees in the Iguazu Falls.  I have found that quite interesting. Are these created by the environment or disease from the trees?

Mushrooms & Fungus from Trees at Iguazu Falls, MG_9462-2

When mushrooms or conks, also called a bract or shelf, grow on tree bark, it is usually a sign that the tree is infected with a rot-inducing pathogen. While not all mushrooms are harmful to trees, many are. They cause heart decay, which causes healthy trees to begin to rot at the heart of the trunk.

Mushrooms & Fungus from Trees at Iguazu Falls, MG_9462

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