latin name: Fistulina Hepatica
This guy!!! Love this guy!!! He's the first edible fungi I ever ate and he tastes like shit. Awful texture, equally bad taste, like if sour old fruit was a mushroom. But it looks super cool! These pictures are of rather young specimens, but this mushroom looks fascinating through its entire growth cycle. When young, it looks like you can see in these pictures. Squishy, a very nice red colour, and excretes this sticky red liquid that looks pretty much exactly like blood. If you were to cut it, it would bleed a lot of this, and you'd also see some white "marbling" that looks exactly like really good beef. The most incredible thing about this fungus is how similar it looks to beef; really its a shame that it doesn't taste as good, too.
Older specimens maintain this beefy look, and become tougher and, i guess, a little more like beef jerky. Very old, decomposing specimens become darker and floppy, very similar to a cow's tongue. Hence, the name "Ox Tongue"!
I actually took these pictures of the exact same tree where I first found this mushroom, last year! I might share some pictures of that find, alongside what it looks like when cut/cooked.