Skip to Main Content
Amyloidity is not diagnostic for species in the Mycena pearsoniana complex (Mycena sectio Calodontes)Author(s): Christoffer Bugge Harder; D. Jean Lodge; Ronald H. Petersen; Karen W. Hughes; Joaquin Cifuentes Blanco; Tobias Guldberg Froslev; Thomas Læssoe
Source: Mycological Progress. 11: 725-732.
Publication Series: Scientific Journal (JRNL)
Station: Northern Research Station
View PDF (293.53 KB)
DescriptionMycena sectio Calodontes with otherwise amyloid spores, the inamyloid spores of Mycena pearsoniana Dennis ex Singer were a distinguishing feature for this species and its subsection Violacella. Although the original concept of this species was European, Singer chose to typify it with material collected in Mexico. The name has since been applied to all European collections with inamyloid spores and decurrent lamellae. Our phylogenetic analysis of 91 ITS sequences from European, North and South American Calodontes collections shows that European collections identified as M. pearsoniana fall into two well-supported sibling clades together with both inamyloid and weakly amyloid North American collections. Since the holotype of M. pearsoniana is in an advanced state of decay, we have selected an epitype from a North American locality with a climate comparable to the Mexican type locality. Our results show weakly and inamyloid spore reactions to be homoplastic in Calodontes, and furthermore that spores of M. pearsoniana can show either amyloid or inamyloid reactions interchangeably. This raises doubt about the taxonomic value of this trait in Mycena systematics.
- Check the Northern Research Station web site to request a printed copy of this publication.
- Our on-line publications are scanned and captured using Adobe Acrobat.
- During the capture process some typographical errors may occur.
- Please contact Sharon Hobrla, firstname.lastname@example.org if you notice any errors which make this publication unusable.
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationHarder, Christoffer Bugge; Lodge, D. Jean; Petersen, Ronald H.; Hughes, Karen W.; Blanco, Joaquin Cifuentes; Frøslev, Tobias Guldberg; Læssøe, Thomas. 2012. Amyloidity is not diagnostic for species in the Mycena pearsoniana complex (Mycena sectio Calodontes). Mycological Progress. 11: 725-732.
KeywordsMycena, ITS phylogeny, Amyloidity
- Elms and Dutch elm disease: a quick overview
- First records of Hygrophoraceae from Panama including a new species of Camarophyllus and a new veiled species in Hygrocybe section Firmae
- Novel weapons and invasion: Biogeographic differences in the competitive effects of Centaurea maculosa and its root exudate (±)-catechin
XML: View XML