Suillus lakei (Murrill) A. H. Sm. & Thiers (Boletales, Basidiomycota) in Poland: new data

Abstract

This study presents up-to-date data on the distribution of the Western Painted Suillus Suillus lakei in Poland. This alien species of fungus was first recorded in Poland in 2012, followed by a second recording in 2013. The third site, presented in this article, was discovered in 2016. A description of the newly discovered site and the basidiomata is given. All three sites of S. lakei are located on private properties overgrown with young Douglas fir. Two of the three recorded sites are located within the boundaries of the Wielkopolskie Province, and one in the Kujawsko-Pomorskie Province. Further expansion of this fungus in Poland is expected.

Current and potential distribution of the ectomycorrhizal fungus Suillus lakei ((Murrill) A.H. Sm. & Thiers) in its invasion range

“…As mentioned above, in Poland, S. lakei was recorded for the first time in 2012 (Usewicz 2012 ) in a private garden, where the outplanted Douglas fir seedlings were imported in pots from Germany (Usewicz, private communication). In a recent study presenting up-to-date data on the distribution of S. lakei in central Poland, sporocarps were discovered on private properties overgrown with young Douglas firs (Szczepkowski and Olenderek 2017 ). Information about the origin of the Douglas fir growing on private gardens is not available for most localities where S. lakei was found; however, this observation suggests that the international trade of ornamental plants can be one possible route of introduction of ECM fungi.…”

“…The presence of S. lakei has been also documented outside its natural range: in South America and Europe and in Australia and New Zealand (Vellinga et al 2009 and references therein), as a result of co-invasion of S. lakei with Douglas fir. Recently, S. lakei fruit bodies have been recorded also in central Poland (Usewicz 2012 ; Tylkowski 2013 ; Szczepkowski and Olenderek 2017 ).…”