Here is what wikipedia has to say (they are using sometimes the Chinese name, Lingzhi, and sometimes the Latin, Ganoderma): Lingzhi may possess anti-tumor, immunomodulatory and immunotherapeutic activities, supported by studies on polysaccharides, terpenes, and other bioactive compounds isolated from fruiting bodies and mycelia of this fungus (reviewed by R. R. Paterson[4] and Lindequist et al.[7]