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The pink papers consist of Piptoporus betulinus together with dried Cortinarius sanguineus.
The green papers consist of Piptoporus betulinus together with decomposed Chlorosiboria aeuruginascens.
The black and mottled papers consist of residues from a dye bath with, for example, Cortinarius sanguineus.
Other papers consist of different polypores.
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This “Mushrooms for Color” website is sponsored by the International Mushroom Dye Institute (IMDI), founded by Miriam C. Rice in 1985. Miriam believed that people throughout the world would benefit from exploring the full spectrum of color derived from mushrooms.
The IMDI was established under IRS Code Section 501©(3) as a non-profit organization for educational purposes. All donations are tax-deductible to the extent as allowed by law.