Hi, oh great and wise fungus and lichen gurus! I found this lovely foliose lichen on my plum tree this morning, and I'm quite curious as to what it is. I don't think I'd even have noticed it had it not been producing soredia. I know it won't harm my tree, and I'm completely inclined to leave it where it lies, but I'm burningly curious about it since very little that I can find has been written on the lichens of South America.
