Basidiomycetes

p.16
"Though the exact biosynthetic pathways have been identified, no one knows exactly why these species produce the psychoactive alkaloids psilocybin (4-phosphoryloxy-N, N-dimethyltryptamine), psilocin (4-hydroxy-N, N-dimethyltryptamine) and baeocystin (4-phospgoryloxy-N-methyltryptamine)."

p.17
"..psilocybin is chemically converted (dephosphorylated) into more potent psilocin by the action of stomach enzymes (though the fate of baeocystin is less well understood)."

p.12
"..current estimates, 209 species of hallucinogenic mushroom.."

Copelelandia cyanescens - 'blue meanies'
psilocybe stuntzii - 'chipbark mushroom'
psilocybe cubensis - 'golden tops'. 0.63%, 0.6% & 0.025%
psilocybe semilanceata - 'liberty cap'

Letcher, Andy. "Shroom". 2006. London: Faber and Faber.

In Queensland specifically:

The toxic mushroom, Panaeolina foenisecii, may cause hallucinations, but interestingly the toxin is not known.