Marasmius oreades
(Bolton) Fr. · speciesAt a glance
Sources12 archives
Databases and archives Marasmius oreades's data was compiled from.
WikipediaWikimedia Foundation12 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility39 240 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI1 711 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics15 specimens↗
NCBIUS National Library of Medicinesequences↗
LOTUSNatural Products (Wikidata)compounds↗
NPASSNat. Product Activity & Species Sourcecompounds↗
Open Tree of LifeOpenTreephylogeny backbone↗
GoaTGenomes on a Tree · Sangergenome & karyotype↗
Catalogue of LifeCOLtaxonomy↗
GLoBIGlobal Biotic Interactionsbiotic interactions↗Every layer below draws on the sources above — open one to explore it, or use ← → to move between tabs.
Marasmius oreades, also known as the fairy ring mushroom or fairy ring champignon, is a mushroom native to North America and Europe. Its common names can cause some confusion, as many other mushrooms grow in fairy rings, such as the edible Agaricus campestris and the poisonous Chlorophyllum molybdites.
No narrative description available for this taxon yet.
No structured trait data for this taxon yet.
Compounds documented for Marasmius oreades across natural-product and food-composition databases — not just the ~150 nutrients on a classic label ("nutritional dark matter").
Compound class profile5 classes
Documented compounds83 total
| Compound | Class | Amount | Source |
|---|---|---|---|
| (1R,2S,4R,6S,12R,15S)-2,4-dihydroxy-5,5-dimethyl-11,13-dioxatetracyclo[7.5.1.01,6.012,15]pentadec-8-en-14-one | present | LOTUS | |
| (1R,2S,6S,12R,14S,15S)-5,5-dimethyl-11,13-dioxatetracyclo[7.5.1.01,6.012,15]pentadec-8-ene-2,14-diol | present | LOTUS | |
| (1R,2S,6S,12R,15S)-2-hydroxy-5,5-dimethyl-11,13-dioxatetracyclo[7.5.1.01,6.012,15]pentadec-8-ene-4,14-dione | present | LOTUS | |
| (1R,4R,6R,12R,15S)-5,5-dimethyl-11,13-dioxatetracyclo[7.5.1.01,6.012,15]pentadec-8-en-4-ol | present | LOTUS | |
| (1R,4R,6S,12R,14R,15S)-5,5-dimethyl-11,13-dioxatetracyclo[7.5.1.01,6.012,15]pentadec-8-ene-4,14-diol | present | LOTUS | |
| (1R,4R,6S,12R,15S)-4-hydroxy-5,5-dimethyl-11,13-dioxatetracyclo[7.5.1.01,6.012,15]pentadec-8-ene-2,14-dione | present | LOTUS | |
| (1R,4S,6R,12R,15S)-5,5-dimethyl-11,13-dioxatetracyclo[7.5.1.01,6.012,15]pentadec-8-en-4-ol | present | LOTUS | |
| (1R,5aR,6S,9aS,9bR)-6-(hydroxymethyl)-6,9a-dimethyl-1,3,5,5a,7,8,9,9b-octahydrobenzo[g][2]benzofuran-1-ol | present | LOTUS | |
| (1R,6R,12R,14S,15S)-14-hydroxy-5,5-dimethyl-11,13-dioxatetracyclo[7.5.1.01,6.012,15]pentadec-8-en-4-one | present | LOTUS | |
| (1S,2R,3R,4R,10R,11R)-4-(3,5-dihydroxyphenyl)-3,11-bis(4-hydroxyphenyl)hexacyclo[8.7.6.12,5.012,17.018,23.09,24]tetracosa-5(24),6,8,12(17),13,15,18(23),19,21-nonaene-6,8,14,19,21-pentol | present | NPASS |
A DNA barcode is a short, standardised stretch of genes that works like a fingerprint — enough to tell one species from another. Below is the molecular trace Marasmius oreades has left across the world's sequence archives.
At a glance
★ the standard DNA barcode for this group — the short region actually read to tell this species apart. The rest are extra genes sequenced along the way.
The complete instruction manual Marasmius oreades carries — its genome. We read it from three angles — how big it is, how the DNA is packed into chromosomes, and how completely it has been sequenced — and explain how to read each value as you go.
Genome sizehow big the whole instruction manual is
Measured in base pairs (bp) — the individual letters of DNA (human ≈ 3.2 Gb, a bacterium a few million). The chart places this genome on a logarithmic scale — each step to the right is ten times bigger — among reference organisms. Across species a bigger genome loosely tracks with larger cells, slower growth and lower-energy lifestyles (powered flight favours small genomes) — yet it does not imply more genes or a more advanced organism (the long-standing C-value paradox).
Sequencing statusassembly quality — how far to trust these numbers
Assembly level tells you how finished the sequence is — from fragmented contigs, through scaffolds, up to a full chromosome-level assembly. BUSCO % estimates completeness: the share of genes expected to be present that were actually found. These describe the data quality, not the organism.
How far back this lineage goes — and how we know. Everything here is measured in Ma, short for “mega-annum”: millions of years ago. The chart reads left to right like a calendar of the Earth, from the deep past on the left to today at the right edgetop to bottom like a core drilled through the Earth, from the deep past at the top down to today at the bottom.
At a glance
When this lineage existed
How to read this: the coloured strip along the bottomdown the left is the geological calendar — the standard epochs (Pliocene, Pleistocene…) every museum uses, shown so you can see which chapter of Earth's history this lineage lived in. This lineage is a young one, so the strip is zoomed in to epochs — the finer subdivisions inside a period. The orange marker is the DNA clock: DNA accumulates mutations at a roughly steady rate, so comparing this species' DNA with its relatives estimates when the lineage split off — independently of any fossil.
Record type39 240 records
Origin
Range
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Museum / Voucheredphysical evidence
Backed by a physical specimen — a herbarium sheet, sample or voucher held in a collection. “Vouchered” means supported by material evidence, not just an observation.
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Holding institutions63 of 115 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
| Institution | Specimens |
|---|---|
| Olocation not on record | 106 |
| Kyiv, UA | 101 |
| BDBClocation not on record | 95 |
| Bernard Price Institute for Palaeontological Researchlocation not on record | 79 |
| Bronx, US | 76 |
| Uppsala, SE | 61 |
| Uniwersytet Łódzkilocation not on record | 54 |
| Chicago, US | 43 |
| Helsinki, FI | 42 |
| Tartu, EE | 39 |
| Joensuu, FI | 37 |
| Auckland, NZ | 32 |
| Denver, US | 29 |
| TENN-Flocation not on record | 29 |
| Karlsruhe, DE | 28 |
| Görlitz, DE | 26 |
| Zapopan, MX | 24 |
| Ann Arbor, US | 24 |
| GJOlocation not on record | 23 |
| Museo Entomologico de Leonlocation not on record | 23 |
| Adam Mickiewicz University in Poznańlocation not on record | 22 |
| San Sebastián, ES | 22 |
| Copenhagen, DK | 21 |
| WTUlocation not on record | 19 |
| Université de Montréal Biodiversity Centrelocation not on record | 18 |
| LDlocation not on record | 18 |
| ILLSlocation not on record | 17 |
| Kew, GB | 17 |
| Kuopio, FI | 17 |
| Catholic University of Pekinglocation not on record | 16 |
| Toronto, CA | 16 |
| WU-MYClocation not on record | 16 |
| DPIlocation not on record | 15 |
| JA-CAGPDS-CAMlocation not on record | 14 |
| St. Paul, US | 14 |
| Vancouver, CA | 11 |
| Vitoria, ES | 11 |
| Colorado State Universitylocation not on record | 11 |
| Trondheim, NO | 9 |
| Davis and Elkins Collegelocation not on record | 9 |
| MeiseBGlocation not on record | 9 |
| Pullman, US | 9 |
| Champaign, US | 8 |
| IPA/SPlocation not on record | 8 |
| PHlocation not on record | 8 |
| Warsaw, PL | 8 |
| FLASlocation not on record | 7 |
| Museum Ludovicae Ulricae, Zoology Institute of the University of Uppsalalocation not on record | 7 |
| Museo civico di Storia naturale Giacomo Doria di Genova | Giacomo Doria Natural History Museum in Genoalocation not on record | 7 |
| Canberra, AU | 7 |
| V. N. Karazin National Universitylocation not on record | 7 |
| Uniwersytet Marii Curie-Skłodowskiejlocation not on record | 6 |
| Durham, US | 5 |
| McWane Science Centerlocation not on record | 5 |
| Chapel Hill, US | 5 |
| Entomological Society of Latvialocation not on record | 5 |
| SLU Artdatabankenlocation not on record | 5 |
| Bardejov, SK | 4 |
| Mexico City, MX | 4 |
| Mexico City, MX | 4 |
| Jyväskylä, FI | 4 |
| Bando, JP | 4 |
| Philadelphia, US | 4 |
| Córdoba, ES | 4 |
| Salzburg, AT | 4 |
| Lincoln, US | 4 |
| Brown Universitylocation not on record | 4 |
| Acadia Universitylocation not on record | 4 |
| Madison, US | 4 |
| Laramie, US | 4 |
| MAlocation not on record | 4 |
| Hobart, AU | 3 |
| National Institute of Biological Resourceslocation not on record | 3 |
| DIEF VALONSADEROlocation not on record | 3 |
| Zürich, CH | 3 |
| CJBGlocation not on record | 3 |
| Turku, FI | 3 |
| California State University, East Baylocation not on record | 3 |
| Blacksburg, US | 3 |
| IB FRC Komi SC UB RASlocation not on record | 3 |
| Universidade de Lisboa, Museu Bocagelocation not on record | 3 |
| Göteborg, SE | 3 |
| TROMlocation not on record | 3 |
| Brisbane, AU | 3 |
| Burlington, US | 2 |
| Natural History Museum Rotterdamlocation not on record | 2 |
| Mérida, ES | 2 |
| IFR-DNFlocation not on record | 2 |
| National Museums of Kenyalocation not on record | 2 |
| Durango, MX | 2 |
| New Brunswick, US | 2 |
| Clemson, US | 2 |
| Staten Island, US | 2 |
| US | 2 |
| Osaka, JP | 2 |
| Slovenian Forestry Institutelocation not on record | 1 |
| Universidade Federal do Rio Grande do Nortelocation not on record | 1 |
| National Mushroom Centre, Department of Agriculture, Ministry of Agriculture and Livestock, Bhutanlocation not on record | 1 |
| Cincinnati, US | 1 |
| PRClocation not on record | 1 |
| Uniwersytet Jagiellońskilocation not on record | 1 |
| Senckenberg Gesellschaft für Naturforschung: Senckenberg Forschungsinstitut und Naturmuseumlocation not on record | 1 |
| Baton Rouge, US | 1 |
| Tromso University Museumlocation not on record | 1 |
| Berlin, DE | 1 |
| Logan, US | 1 |
| Santa Cruz, US | 1 |
| Department of Plant Resources, National Herbarium and Plant Laboratorieslocation not on record | 1 |
| Madrid, ES | 1 |
| CA | 1 |
| Salamanca, ES | 1 |
| Tomioka, JP | 1 |
| University of the Basque Country (UPV/EHU)location not on record | 1 |
| University of Oslo, Natural History Museumlocation not on record | 1 |
| Leicester, GB | 1 |
Where the DNA of Marasmius oreades was picked up in samples of water, soil or air — nobody saw the organism, only its DNA left behind. A trace is a clue that the species was near, not a confirmed sighting.
Signal
Where its DNA was found
How strong is each trace?
Measured at samplingin-field
Modelled climatemodelled
How to read this: each dot is one detection of this species' DNA in an environmental sample. The confidence meter weighs how many independent studies and places back up the signal — one detection in one study is a hint; many across several studies is solid. Records dated before 2008 (when eDNA methods began) are treated as likely mislabeled and left off the map.