mushroom id on a hemlock

[The Gobble-stopper]

First time a mushroom came up on my hemlock, it looks familiar, but cant find my ID book. Would love it if it were edible. Can you give me some help?

[cjjcb]

Possible oyster mushroom… dead Hemlock snag?
Folks say oysters are edible, but I’ll leave the final identification up to you…

[The Gobble-stopper]

Possible oyster mushroom… dead Hemlock snag?
Folks say oysters are edible, but I’ll leave the final identification up to you…

The top of the tree died 10 years ago but the bottom half, about 30 feet tall is healthy..My first thought was oyster.? The mushroom is by itself and is about 10 inches across. I know there is a few experts on here. I was hoping they would chime in. Doesn't piano man know a lot about mushrooms?

[MR5x5]

Start here;

https://www.alpental.com/psms/PNWMushrooms/PictorialKey/Oddballs.htm

Looks like an oyster variety. 

[pianoman9701]

Get a good guide. Do a spore print and compare characteristics. BTW, true oysters usually grow on hardwoods, not conifers.

[RobinHoodlum]

As Piano said, oysters are generally growing on dead hardwood (snags or down wood). The fact that this is also solitary, large, and appears to have a leathery-ish top surface (vs. wet & slick) are all indications that it's something else.

[Jake Dogfish]

Interesting find!
Looks similar to hypsizygus, but I’ve only seen it on hardwoods.