this is all i could find doen't mention cubes but two of the five aren't mentioned
In the Hawaiian Islands a number of these psychoactive mushroom species occur naturally, including five which have been identified. The three most common of the identified species of psychoactive fungi in the Hawaiian Islands known to contain psilocybin and/or psilocin are Copelandia cyanescens (Berk. & Br.) Singer, C. tropicalis Olah, and Panaeolus subbalteatus (Berk. & Br.) Sacc. All three of these melanosporous species belong to the family Coprinaceae and are primarily coprophilic, but have been known to occur in grassland areas where manure had previously been deposited.