On a branch of a Tulip Tree, Liriodendron tulipifera.
EDIT : Apothecia are rarely produced by this species, and the ones present here on the upper right belong to a Parmotrema submarginale that has been overtaken by the Flavoparmelia caperata.
On a branch of a Tulip Tree, Liriodendron tulipifera.
Accompanied, left edge center, by Myelochroa galbina.
Silver Lake Park