Mushroom Cover from Lithuania with a Gomphus clavata. Postmarked April 5th 2016, with arrival on April 14 through Priority mail.
Design Eglė Jakutavičiūtė
Print run 200.000 (?)
Issued on Feb 2016 (?)
Gomphus clavatus, pigs ear is a known edible mushroom. Sometimes it's also called Cantharellus clavatus, but more correctly it belongs to a different genus. It's pretty much edible.
I guess Lithuania post hasn't updated their books yet.
Like most white cap Boletus, this one is bitter, and inedible, possibly poisonous.