| 1. |
- Lindström, Håkan, et al.
(författare)
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Studies of the Cortinarius saniosus complex and a new closely related species C. aureovelatus (Basidiomycota, Agaricales).
- 2007
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Ingår i: Sommerfeltia. ; 31, s. 139-159
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Tidskriftsartikel (refereegranskat)abstract
- The variation of the widely spread Cortinarius saniosus is described with respect to morphological, ecological and molecular characteristics. C. chrysomallus D. Lamoure and C. aureomarginatus P.D. Orton are regarded as synonymous with C. saniosus based on morphological and molecular data. A new closely related species C. aureovelatus Bendiksen, K. Bendiksen & H. Lindstr., growing in coniferous and mountain birch forests, is described. A taxonomical and nomenclatural treatment of the complex, based upon present knowledge, is proposed.
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| 2. |
- Zamora, Juan Carlos, et al.
(författare)
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Considerations and consequences of allowing DNA sequence data as types of fungal taxa
- 2018
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Ingår i: IMA Fungus. - : INT MYCOLOGICAL ASSOC. - 2210-6340 .- 2210-6359. ; 9:1, s. 167-185
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Tidskriftsartikel (refereegranskat)abstract
- Nomenclatural type definitions are one of the most important concepts in biological nomenclature. Being physical objects that can be re-studied by other researchers, types permanently link taxonomy (an artificial agreement to classify biological diversity) with nomenclature (an artificial agreement to name biological diversity). Two proposals to amend the International Code of Nomenclature for algae, fungi, and plants (ICN), allowing DNA sequences alone (of any region and extent) to serve as types of taxon names for voucherless fungi (mainly putative taxa from environmental DNA sequences), have been submitted to be voted on at the 11th International Mycological Congress (Puerto Rico, July 2018). We consider various genetic processes affecting the distribution of alleles among taxa and find that alleles may not consistently and uniquely represent the species within which they are contained. Should the proposals be accepted, the meaning of nomenclatural types would change in a fundamental way from physical objects as sources of data to the data themselves. Such changes are conducive to irreproducible science, the potential typification on artefactual data, and massive creation of names with low information content, ultimately causing nomenclatural instability and unnecessary work for future researchers that would stall future explorations of fungal diversity. We conclude that the acceptance of DNA sequences alone as types of names of taxa, under the terms used in the current proposals, is unnecessary and would not solve the problem of naming putative taxa known only from DNA sequences in a scientifically defensible way. As an alternative, we highlight the use of formulas for naming putative taxa (candidate taxa) that do not require any modification of the ICN.
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| 3. |
- Noordeloos, Machiel Evert, et al.
(författare)
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Three new Entoloma species of the Cyanula clade from (sub)alpine habitats in Northern Norway and Sweden
- 2021
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Ingår i: Sydowia. - 0082-0598. ; 73, s. 185-196
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Tidskriftsartikel (refereegranskat)abstract
- Three Entoloma species belonging to the Cyanula clade from (middle-) northern boreal and alpine areas are described as new to science. Entoloma montanum, E. nordlandicum, and E. septentrionale, recorded from the Holmvassdalen area at Grane, North- ern Norway while E. montanum shows a wide distribution in Northern Scandinavia and the Caucasus. Entoloma nordlandicum, however, has recently been recorded also from the Netherlands. The three species are phylogenetically well defined based on analysis of the nrDNA ITS region and they are distant from their closest relatives. Morphological descriptions of each species are given, as well as their ecology, distribution and relationships towards similar species are discussed.
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