Abstract
Pseudoomphalina kalchbrenneri is a Eurasian species. In North America the Pso. kalchbrenneri complex is represented by Pseudoomphalina anticostica sp. nov. and Pso. compressipes in the east and Pso. intermedia in the west. Pseudoomphalina farinacea and Pso. felleoides are later synonyms for Pso. compressipes. The somewhat similar Pseudolaccaria pachyphylla occupies a temperate band through Eurasia, confirmed by sequencing in both eastern and western North America. It differs from species of the Pso. kalchbrenneri complex by smaller size, finely granular pileus, non-decurrent gills, and lack of hymenial cystidia. All species of the Pso. kalchbrenneri complex are uncommon, and macroscopically similar. Pseudoomphalina kalchbrenneri and Pso. intermedia can be identified by their distribution (Europe and western North America, respectively) and lack of cystidia. The cystidiate eastern North American Pso. anticostica and Pso. compressipes can be differentiated by the smaller spores of the latter. Pseudoomphalina cokeri is the most ancestral species on the Pseudoomphalina lineage, while Clitocybe thujana and Agaricus apertus (Clitocybe/ Clitocybula aperta) fall outside Pseudoomphalina and Pseudolaccaria. We add 21 new sequences to GenBank, including six types (Agaricus compressipes, Clitocybe felleoides, C. farinacea, C. intermedia, C. thujana, Agaricus apertus), and one new species (Pso. anticostica).
| Original language | English (US) |
|---|---|
| Pages (from-to) | 91-101 |
| Number of pages | 11 |
| Journal | Botany |
| Volume | 98 |
| Issue number | 2 |
| DOIs | |
| State | Published - 2020 |
Bibliographical note
Funding Information:The authors thank the curators and curatorial staff of the E. C. Smith Herbarium (ACAD), the Cercle des mycologues de Montréal Fungarium (CMMF), the University of Michigan Herbarium (MICH), University of Minnesota Herbarium (MIN) the New York Botanical Garden Herbarium (NY), the New York State Museum Herbarium (NYS), and the Grenfell Campus Herbarium (SWGC) for the loan or gift of specimens and permission to use photos. Figures 2D and 2E are the property of the Regents of the University of Michigan; we thank Timothy James and Patricia Rogers for use-permissions. We thank Fabio Padovan for the use of Figure 2G; the CMMF and Yves Lamoureux for the use of Figure 2C; and Alfredo Vizzini Marco Floriano, and E. Rossi for permission to use the illustration by Giacomo Bresadola (Fig. 2F); E. Rossi, librarian at the Science Museum in Trento, located the original plate of Omphalia kalchbrenneri. We also thank Jason Karakehian for help locating obscure reference articles, and Tom May for taxonomic advice. We are grateful to the Chaire de recherche industrielle CRSNG en aménagement intégré des ressources de l’île d’Anticosti and Mycoquébec, who offered logistic and financial support for the trip to Anticosti in 2015. We are indebted to two anonymous reviewers and the associate editor, Greg Thorn, for their suggestions, which prompted us to change a regional study to a continental review. Irja Saar was supported by the Estonian Research Council (IUT20-30), the European Regional Development Fund (Centre of Excellence EcolChange).
Publisher Copyright:
© 2020, Canadian Science Publishing. All rights reserved.
Keywords
- Holotype barcoding
- ITS sequences
- Molecular phylogeny
- Tricholoma