A quick picture post, more words later.
Below is my dye experiments with teloschistes exilis or slender orange bush lichen. It took over two years to collect 2 ounces of this windfall lichen plus one big damaging wind storm. The substrate is silk. I now know this process works as well on silk as well as wool!
The lichen was soaked for about two months in one part ammonia and 2 part water. An amazing solar photosynthesis happens when you allow the skein to dry slowly in the sun.
If anyone can provide input/resources on the chemical reaction taking place please let me know. For now, I am enjoying the color! Of course if I want to keep the pink I would allow the skein to dry in the shade.
See the time lapse below for the transformation from pink to blue.