Skip to Main Content
Hymenochaetales: a molecular phylogeny for the hymenochaetoid cladeAuthor(s): Karl-Henrik Larsson; Erast Parmasto; Michael Fischer; Ewald Langer; Karen K. Nakasone; Scott A. Redhead
Source: Mycologia. Vol. 98, no. 6 (2006): p. 926-936.
Publication Series: Miscellaneous Publication
PDF: Download Publication (599 KB)
DescriptionThe hymenochaetoid clade is dominated by wood-decaying species previously classified in the artificial families Corticiaceae, Polyporaceae and Stereaceae. The majority of these species cause a white rot. The polypore Bridgeoporus and several corticioid species with inconspicuous basidiomata live in association with brown-rotted wood, but their nutritional strategy is not known. Mycorrhizal habit is reported for Coltricia perennis but needs confirmation. A surprising element in the hymenochaetoid clade is a group of small white to brightly pigmented agarics earlier classified in Omphalina. They form a subclade together with some similarly colored stipitate stereoid and corticioid species. Several are associated with living mosses or one-celled green algae. Hyphoderma pratermissum and some related corticioid species have specialized organs for trapping and killing nematodes as a source of nitrogen. There are no unequivocal morphological synapomorphies known for the hymenochaetoid clade. However almost all species examined ultrastructurally have dolipore septa with continuous parenthesomes while perforate parenthesomes is the normal condition for other homobasidiomycete clades. The agaricoid Hymenochaetales have not been examined. Within Hymenochaetales the Hymenochaetaceae forms a distinct clade but unfortunately all morphological characters supporting Hymenochaetaceae also are found in species outside the clade. Other subclades recovered by the molecular phylogenetic analyses are less uniform, and the overall resolution within the nuclear LSU tree presented here is still unsatisfactory.
- 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.
CitationLarsson, Karl-Henrik; Parmasto, Erast; Fischer, Michael; Langer, Ewald; Nakasone, Karen K.; Redhead, Scott A. 2006. Hymenochaetales: a molecular phylogeny for the hymenochaetoid clade. Mycologia. Vol. 98, no. 6 (2006): p. 926-936.
KeywordsBasidiomycetes, Bayesian inference, Blasiphalia, corticioid fungi, Hyphodontia, molecular systematics, phylogeny, Rickenella, molecular genetics, fungi morphology, cladistic analysis, phylogeny, Hymenochaetales, identification, classification, mycological surveys, genetic analysis, white rot, taxonomy, systematics
- Arrasia rostrata (Basidiomycota), a new corticioid genus and species from Italy
- Tuber aztecorum sp. nov., a truffle species from Mexico belonging to the Maculatum clade (Tuberaceae, Pezizales)
- A discussion on the genus Fomitiporella (Hymenochaetaceae, Hymenochaetales) and first record of F. americana from southern South America
XML: View XML