Opuntia pachypus

Now accepted as Austrocylindropuntia pachypus (K.Schumann) Backeberg.

As Opuntia pachipus [sic], this Peruvian plant was purported to contain mescaline, by A. Caycho Jimenez 1977 (on page 91). His statement lacked any details or a meaningful reference.

Due to the inclusion of other names on his list that are unmistakeable errors, this claim seems best regarded as dubious pending supportive evidence.