Biology:Rhizomarasmius

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Short description: Genus of fungi

Rhizomarasmius
Rhizomarasmius pyrrhocephalus 271034.jpg
Rhizomarasmius pyrrhocephalus
Scientific classification
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Genus:
Rhizomarasmius

R.H.Petersen (2000)
Type species
Rhizomarasmius pyrrhocephalus
(Berk.) R.H.Petersen (2000)
Species

Rhizomarasmius is a genus of fungi in the family Physalacriaceae, containing about five species.[3]

General

The genus was created in 2000 by R. H. Petersen to accommodate two species then classified in Marasmius (M. pyrrhocephalus and M. undatus), but which do not belong there due to morphological grounds, including the nature of the cystidia and the way the mushrooms are rooted on a plant substrate. This analysis was backed up in 2006 by DNA comparisons done by Wilson and Desjardin.[4][2][5]

Unlike most Marasmius mushrooms, members of Rhizomarasmius grow on the rhizomes of ferns or flowering plants, and that is the signification of the genus name. Instead of the Marasmiaceae this genus is placed in the Physalacriaceae, a sister clade but a separate family.[4]

Species

Image Name Notes Distribution
Rhizomarasmius epidryas 674826 detail.jpg R. epidryas Arctic, Altai Mountains & mountains in Europe & N. America
R. oreinus
Rhizomarasmius pyrrhocephalus (Berk.) R.H. Petersen 330892.jpg R. pyrrhocephalus Type species N. America
Marasmius setosus a2 detail.jpg R. setosus = Marasmius setosus, Marasmius recubans Europe
MCCookePlate149detailRhizomarasmiusundatus.jpg R. undatus Europe, N. America, Altai Mountains

See also

References

  1. "Rhizomarasmius epidryas (Physalacriaceae): phylogenetic placement of an arctic-alpine fungus with obligate saprobic affinity to Dryas spp". Mycologia 103 (5): 1124–1132. 2011. doi:10.3852/11-018. PMID 21482630. 
  2. 2.0 2.1 Petersen RH. (2000). "Rhizomarasmius, gen. nov. (Xerulaceae, Agaricales)". Mycotaxon 75: 333–342. http://www.cybertruffle.org.uk/cyberliber/59575/0075/0333.htm. 
  3. "Cibaomyces and Cyptotrama, two new genera for Europe, and an emendation of Rhizomarasmius (Basidiomycota, Physalacriaceae)". Mycological Progress 14 (2). 2015. doi:10.1007/s11557-015-1024-4. 
  4. 4.0 4.1 Antonín, V.; Noordeloos, M. E. (2010). A monograph of marasmioid and collybioid fungi in Europe. Berchtesgaden, DE: IHW Verlag. pp. 427–430. ISBN 978-3-930167-72-2. 
  5. "Phylogenetic relationships in the gymnopoid and marasmioid fungi (Basidiomycetes, euagarics clade).". Mycologia 97 (3): 667–679. 2005. doi:10.3852/mycologia.97.3.667. PMID 16392255. https://www.researchgate.net/publication/7379691. 

Wikidata ☰ Q1615270 entry