Abstract
The new species Inocybe flavobrunnescens is described on the basis of morphological and genetic features. It is characterized by (sub)isodiametric spores; it has a variable number of low and obtuse knobs, lageniform cystidia, and habitat preference for thermophilous oak woods on calcareous soils. It is compared with type material of Inocybe xanthomelas and I. krieglsteineri, which share with the new species a darkening flesh and small to medium sized basidiomes. ITS analysis revealed a low intraspecific variability within each Inocybe lineage, suggesting their accommodation as independent species. On the basis of this DNA region, I. xanthomelas and I. krieglsteineri are closely related. The present work suggests also updating several names in public databases to accommodate the present taxonomic conclusions. A lectotype for I. xanthomelas is designated.
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Acknowledgments
First, we wish to express our gratitude to Dr. Javier Rejos, Curator at AH, for his permanent and invaluable help in requesting material and concern in our research; our colleague Dr. Ibai Olariaga for his kind help in obtaining some molecular sequences of this study: also to A. Priego and J.A. Pérez (Electron Microscopy Service at Alcalá University) for their assistance with the SEM work. We also thank Luis Monje and Angel Pueblas (Department of Drawing and Scientific Photography at Alcalá University) for their collaboration in the digital preparation of the photographs. Our deep gratitude is given to the Curators at G and LIP for the loan of type collections; lastly we appreciate the courtesy of Erminio Ferrari, Roberto Fernández-Sasia and Agustín Caballero, who sent us interesting collections for study.
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Esteve-Raventós, F., Moreno, G., Bizio, E. et al. Inocybe flavobrunnescens, a new species in section Marginatae . Mycol Progress 14, 14 (2015). https://doi.org/10.1007/s11557-015-1036-0
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DOI: https://doi.org/10.1007/s11557-015-1036-0