Dryad's Saddle
I was walking back from the local grocery store and saw this growing out the side of a sycamore tree. I'd never seen anything quite like it. I've since learned that it's called Dryad's Saddle, or Cerioporus squamosus in Latin.
Shot on my iPhone 8 Plus.
From Wikipedia:
Polyporus squamosus aka Cerioporus squamosus (yet to be confirmed new taxonomy) is a basidiomycete bracket fungus, with common names including dryad's saddle and pheasant's back mushroom.[2] It has a widespread distribution, being found in North America, Australia, Asia, and Europe, where it causes a white rot in the heartwood of living and dead hardwood trees. The name "dryad's saddle" refers to creatures in Greek mythology called dryads who could conceivably fit and ride on this mushroom, whereas the pheasant's back analogy derives from the pattern of colors on the bracket matching that of a pheasant's back.