Under two mature oaks, one red and one willow. Windfall branches from the canopies after a recent rain-snow storm. (Over-exposed coin just over an inch across for scale.)
Both trees’ branches were sporting this jelly raisin-like stuff. It seems to be Amber Jelly Fungus (Exidia ricsa).
I’ve never see this at eye-level or below, only on branches/twigs that have fallen down. There’s stuff going on way up there that we earth-bounders rarely see.
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This work by Matthew Wills is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 United States License.
Backyard and Beyond 
I have found this exact fungus on our large willow oak in Tennessee. Is there a treatment and/or will it kill the tree?
A few of these shouldn’t be anything to worry about, but they are breaking down dead wood, so you may want to check on the overall health of the tree with a professional arborist.