The psychedelic mushroom formerly known as Stropharia cubensis was reclassified into the genus Psilocybe by mycologist Rolf Singer and subsequently this classification was supported by modern phylogenetic analyses based upon DNA sequence comparison.
Psilocybe, previously identified as Stropharia cubensis, underwent a change in classification due to the work of mycologist Rolf Singer, which has been corroborated by recent studies utilizing DNA sequencing for phylogenetic analysis.