Planta Med 1981; 42(7): 229-235
DOI: 10.1055/s-2007-971632
Research Articles

© Hippokrates Verlag Stuttgart

The Content of Psilocybin in Norwegian Psilocybe semilanceata

A. L. Christiansen1 , K. E. Rasmussen1 , K. Høiland2
  • 1Institute of Pharmacy, University of Oslo, Norway
  • 2Botanical Garden and Museum, University of Oslo, Norway
Further Information

Publication History

Publication Date:
30 March 2007 (online)

Abstract

Psilocybe semilanceata contains hallucinogenic indole alkaloids and has been used as a narcotic drug in Norway. The content of psilocybin, the major constituent in Norwegian P. semilanceata, has been investigated as well as its habitats and its distribution throughout the country. The mushroom is growing on grassy sites in most parts of Norway from the middle of August to the middle of October. The psilocybin content in dried mushrooms varied considerably, from 0.17 to 1.96%. The highest concentrations in percent was found among the smaller mushrooms whereas the content in mg was highest in larger mushrooms. The content of psilocybin makes P. semilanceata to a potent hallucinogenic drug.