June 15, 2015 – Banana-shaped fungus gally looking thing!

Spied this on an elderberry bush and thought is was a fungus. Upon further inspection it is hard with lots of yellow dust dropping off it.

It is attached to the plant via what looks like a stem. Closest I can find out to what it is is “Puccinia bolleyana.” But I can’t find much about it. Strange things in the elderberry hedge!