Transatlantic disjunction in fleshy fungi. I. The Sparassis crispa complex
Hughes KW, Segovia AR, Petersen RH. 2013. Transatlantic disjunction in fleshy fungi. I. The Sparassis crispa complex. Mycological Progress
Phylogenies based on ITS and LSU sequences show that the Sparassis crispa complex comprises several monophyletic clades, in some cases co\rresponding to named taxa (i.e. S. crispa, S. radicata), but others lacking names (i.e. eastern and southwestern North American S. “crispa”). In our study, morphological examination of numerous collections also distinguished subtle differences correlated with geographic distribution. Underlying these problems, several taxa lacked type specimens for taxonomic analysis. In this paper, appropriate epitypes are designated and names assigned. Extensive sexual compatibility experiments, described within, indicate that monokaryon, haploid isolates of collections from North America and Europe are consistently sexually compatible to some degree. Inherent in the study, different “species concepts” were tested, with the “biological species concept,” based on sexual compatibility, being the least restrictive. We propose two new taxa, S. americana and S. americana f. arizonica.
- Type
- Journal Article
- Authors
- Hughes, Karen; Segovia, Ana; Petersen, Ronald
- Units
- GRSM
- Keywords
- Albright Grove, APHN, Appalachian Highlands Network, Biogeography, Cades Cove, cauliflower mushrooms, European, Fungi, Great Smoky Mountains National Park, GRSM, GRSM-01049, Hybrids, mating studies, New Species, Phylogeny, SER, Southeast Region