Violet-toothed Polypore (4 "Turkey-Tail"-like log shrooms that can be easily identified but are easily confused)

Violet-toothed Polypore

Trichaptum biforme

Trichaptum biforme is a species of fungus in the Polyporaceae family. It is a plant pathogen.

(c) Noah Siegel, some rights reserved (CC BY-NC-SA), https://images.mushroomobserver.org/640/71682.jpg
(c) Vilseskogen, some rights reserved (CC BY-NC-SA), https://www.flickr.com/photos/vilseskogen/23776842141/
(c) Jason Hollinger, some rights reserved (CC BY), http://www.flickr.com/photos/7147684@N03/4501881050
(c) Dendroica cerulea, some rights reserved (CC BY-NC-SA), https://www.flickr.com/photos/dendroica/9480434001/
(c) Vilseskogen, some rights reserved (CC BY-NC-SA), https://www.flickr.com/photos/vilseskogen/23776845331/
(c) Kathie Hodge, some rights reserved (CC BY-NC-SA), https://www.flickr.com/photos/cornellfungi/4973255554/
(c) Jonathan (JC) Carpenter, some rights reserved (CC BY-NC), uploaded by Jonathan (JC) Carpenter
(c) Ron Pastorino, some rights reserved (CC BY-SA), https://images.mushroomobserver.org/640/109974.jpg
(c) Wikipedia, some rights reserved (CC BY-SA), http://en.wikipedia.org/wiki/Trichaptum_biforme