Hey 
Nice post and neatly explained how the pores of some polypores develop tooth-like pores that can be deceiving.
The pores of those beautiful bracket fungi are not brownish enough to be Trametes villosa and the algae growing on top of the fruiting bodies points towards it most likely being Cerrena unicolor, which also develops tooth-like pores with age.
What do you think?
RE: The Amateur Mycologist - Random Find - Probably Cerrena unicolor, (See Comments, Thanks @fabulousfungi), Maybe Trametes villosa Based On Some Descriptions + SPOILER - Another Big Microscope Advancement Coming!