There are many types of mushrooms that are known as "purple mystic" mushrooms, so it's difficult to provide a comprehensive history of all of them. However, here is some general information about mushrooms that have been referred to as "purple mystic" in various contexts:

• Psilocybe azurescens: This is a species of mushroom that is native to the Pacific Northwest region of the United States. It is sometimes called the "purple mystic" because of its dark purplish-brown cap. This mushroom contains psilocybin, a psychoactive compound that can cause hallucinations and altered perceptions when consumed. Psilocybe azurescens has a long history of use by indigenous people in the region for spiritual and medicinal purposes, and it has also gained popularity as a recreational drug.
• Laccaria amethystina: This is a species of mushroom that is found in many parts of the world, including North America, Europe, and Asia. It is commonly known as the "purple-gilled laccaria" or the "amethyst deceiver" because of its deep purple gills and cap. Unlike Psilocybe azurescens, Laccaria amethystina is not psychoactive and is not used for recreational purposes. However, it has been used in traditional medicine for its anti-inflammatory properties.
• Tricholoma terreum: This is another species of mushroom that is found in many parts of the world, including Europe, Asia, and North America. It is sometimes called the "grey knight" or the "violet knight" because of its grey-brown cap and purple-grey gills. Like Laccaria amethystina, Tricholoma terreum is not psychoactive and is not used for recreational purposes. However, it is edible and is considered a delicacy in some parts of Europe.

Overall, the term "purple mystic" is not a scientific classification of mushrooms but rather a descriptive term that has been used for various mushrooms with purple or violet hues.