First thing- the photos! I have divided my experiments into three sections-
Period (Dyestuffs I have gathered that are known to have been used in period, or are direct New World analogues of period dyestuffs- also included, Dye Fails/Whoops because failing is definitely period)
Possibly Period (Dyestuffs that could have been used in period but are poorly documented, or have a broad distribution in Europe and could potentially have been used)
Not Period (Dyestuffs that are unlikely to have been used in period, or are New World only)
(*note: The red plastic item is in the photo so I could attempt to accurately color adjust the photos)
Period Dyestuffs (as of 10/29- I have multiple Period Dyestuffs in progress)
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Bedstraw simmering 
Bedstraw color through window 
Bedstraw- a 100% period madder relative! 
Period and Non-Period Dyed Hanks (Mushrooms, Wild Grapes, Pokeberries) 
Various Lichen Species, Boiled-Water-method – npte color is slightly off, center reddish skein is a richer, bronzey-brown, right skein is deeper yellow with little green 
This photo I had trouble color-matching; the tannin+irons are dark grey-black, though the wild grape colors are fairly true to color. 
Berberis tests; See “The Quest for Berberine” blog.
Not Period
Overviews of Colors of Stonemarche as of 10/29/2021
Cortinarius Sp., unknown toothed mushroom, Wild Grape with ammonia, Sarcodon sp., Pokeberry with Wild Grape (vinegar) 
Two different mushrooms: Left Sarcodon sp., right Phellodon sp.
Left to Right: Cortinarius, unknown toothed mushroom, wild grape (slightly basic pH), Phellodon sp, wild grape and pokeberry. 
Left: Sarcodon, Right: Boletopsis