Alpine Botany

, Volume 129, Issue 2, pp 185–189 | Cite as

A king amongst dwarfs: Boletus edulis forms ectomycorrhiza with dwarf willow in the Swiss Alps

  • Artemis D. Treindl
  • Adrian LeuchtmannEmail author
Short Communication


The ectomycorrhizal fungus Boletus edulis, commonly known as king bolete, Steinpilz, porcini or cep, is one of the most popular edible mushrooms in Europe, North America and Asia. To produce fruiting bodies, it usually relies on the symbiotic association with deciduous or coniferous trees. Here, we report on an exceptional finding of B. edulis at an altitude of 2440 m a.s.l. in the Swiss Alps and document for the first time its ectomycorrhizal association with Salix herbacea (dwarf willow) based on molecular markers and microscopic observations.


Ectomycorrhiza Host shift Boletus edulis Salix herbacea Swiss Alps 



We thank Andrin Gross for providing data from SwissFungi database, Karsten Rohweder and students of the mycological field course for help with specimen collection, and Bea Arnold for laboratory assistance. Sequence data were generated in the Genetic Diversity Centre of ETH Zurich (GDC).

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.


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Copyright information

© Swiss Botanical Society 2019

Authors and Affiliations

  1. 1.Plant Ecological Genetics, Institute of Integrative BiologyETH ZurichZurichSwitzerland

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