Lichen or Moss?

Cup Lichen
Cup Lichen

I took this photo 2-3 years ago and thought until this week it was moss.

This enchanting specimen is commonly known as Pixie Cups, for the tiny cups of course. It grows through out the US and Canada and supposedly if you walk in the woods and train your eyes on rotting logs and tree stumps you’ll find it there. It’s scientific name is Cladonia which applies to a whole family of cup shaped lichens. My first lichen ID!