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Experimental taxonomic studies in Psilocybe sect. Psilocybe

Published online by Cambridge University Press:  18 December 2002

Toen BOEKHOUT ,
Joost STALPERS ,
Sebastiaan J. W. VERDUIN ,
Jan RADEMAKER  and
Machiel E. NOORDELOOS
Toen BOEKHOUT
Affiliation:
Centraalbureau voor Schimmelcultures, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands
Joost STALPERS
Affiliation:
Centraalbureau voor Schimmelcultures, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands
Sebastiaan J. W. VERDUIN
Affiliation:
National Herbarium of the Netherlands, Leiden University Branch, Einsteinweg 2, P.O. Box 9514, NL 2300 RA Leiden, The Netherlands. E-mail: [email protected]
Jan RADEMAKER
Affiliation:
Centraalbureau voor Schimmelcultures, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands
Machiel E. NOORDELOOS
Affiliation:
National Herbarium of the Netherlands, Leiden University Branch, Einsteinweg 2, P.O. Box 9514, NL 2300 RA Leiden, The Netherlands. E-mail: [email protected]
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Abstract

The species of Psilocybe sect. Psilocybe, formerly classified in the genus Deconica, were investigated using morphology, mating behaviour and RAPD analysis. Psilocybe inquilinus and P. crobula do not seem to be closely related. Based on the morphology, two varieties could be accommodated in P. subviscida, namely as vars. subviscida and velata. The mating group of P. montana is characterized by rather thick-walled, dark spores with a fairly large germ-pore. Putative representatives of P. muscorum and P. physaloides freely interbreed with typical P. montana, and, consequently, these taxa are considered to represent one variable species. The ex-type strain of P. chionophila did not mate with isolates of P. montana. One collection of P. chionophila from a lowland habitat, morphologically resembling P. montana, was found to be interfertile with the ex-type strain of P. chionophila, but not with P. montana. We identified several collections as P. magica, which is morphologically similar to P. schoeneti. Mating studies showed that these specimen belong to the same biological species, but failed to mate with the ex-type of P. schoeneti.

Type
Research Article
Information
Mycological Research , Volume 106 , Issue 11 , November 2002 , pp. 1251 - 1261
Copyright
© 2002 The British Mycological Society

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