Is the reason that mordanšage does it's thing on blacks is because of the
dense build up of silver? If so, then my reasoning that it may work (or may not
work, for that matter) is that the silver still has a build up in the emulsion
where the plants were not on the paper. But then again, the prints aren't being
developed...but does that matter?
Well, Andy, may you be the discoverer of
something new! Mordancage works
proportionately on where there is the most silver, but whether that silver has
to be reduced by development or just "exist" as is, I have no idea. Please
let us know what you find out. I am going to predict it will not work but
I would LOVE it if I am wrong.