Roger Jean Heim
- Category : Science-Biology
- Type : ME
- Profile : 5/1 - Heretical / Investigator
- Definition : Single
- Incarnation Cross : LAX Revolution 1
French botanist specialising in mycology and tropical phytopathology. He was known for his studies describing the anatomy of the mushroom hymenium, the systematics and phylogeny of higher fungi, the mycology of tropical fungi such as Termitomyces, as well as ethnomycological work on hallucinogenic fungi, like Psilocybe and Stropharia. He died 17 September 1979.