Athelia arachnoidea is a corticioid fungus in the family Atheliaceae. The species forms thin, white, cobwebby basidiocarps (fruit bodies) and typically occurs saprotrophically on leaf litter and fallen wood. It can, however, also be a facultative parasite of lichens and can additionally be a plant pathogen (typically found in its asexual Fibularhizoctonia carotae state), causing "crater rot" of stored carrots.
No narrative description available for this taxon yet.
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 Athelia arachnoidea has left across the world's sequence archives.
At a glance
DNA specimens3
Marker genes1
GenBank sequences10
eDNA detections159
Countries23
The DNA barcodea real sequence read deposited for this species
★ 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.
★ITS10
fungal barcode
07Deep time~0.21 Ma lineage
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
DNA clock origin0.21 Ma TimeTree
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.
DNA clock origin
08Occurrence & distribution
Record type4 686 records
Wild obs. + sensor4 115
Museum / vouchered571
Origin
Native56
Range
Area of Occupancy AOO10 972 km²
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Coordinate accuracy59% within 1 km
≤100 m 1 664≤1 km 410≤10 km 1 449>10 km 13
3 536 georeferenced · 579 without coordinates
Open the mapobservation + sensor4 115
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.
Coordinate accuracy53% within 1 km
≤100 m 42≤1 km 80≤10 km 98>10 km 9
229 georeferenced · 342 without coordinates
Open the institutions mapphysical evidence571
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
10Collections & institutions
Holding institutions28 of 59 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
University of Gdansklocation not on record
50
Helsinki, FI
38
Olocation not on record
28
SLU Artdatabankenlocation not on record
23
Tartu, EE
16
MeiseBGlocation not on record
14
MAlocation not on record
14
University of the Basque Country (UPV/EHU)location not on record
13
Philadelphia, US
11
Bronx, US
10
Kew, GB
10
Uppsala, SE
10
Copenhagen, DK
9
Karlsruhe, DE
8
LDlocation not on record
7
Mlocation not on record
7
Uniwersytet Wrocławskilocation not on record
6
Zürich, CH
6
San Sebastián, ES
6
Göteborg, SE
5
Toronto, CA
5
Vitoria, ES
5
Görlitz, DE
4
Museum Ludovicae Ulricae, Zoology Institute of the University of Uppsalalocation not on record
4
Chicago, US
4
UNINE:NEUlocation not on record
4
Museo civico di Storia naturale Giacomo Doria di Genova | Giacomo Doria Natural History Museum in Genoalocation not on record
4
McWane Science Centerlocation not on record
3
Museo Entomologico de Leonlocation not on record
3
GJOlocation not on record
3
Senckenberg Gesellschaft für Naturforschung: Senckenberg Forschungsinstitut und Naturmuseumlocation not on record
3
CLUlocation not on record
3
BDBClocation not on record
3
Oulu, FI
2
CA
2
JA-CAGPDS-CAMlocation not on record
2
DPIlocation not on record
2
Auckland, NZ
2
Clocation not on record
2
Stockholm, SE
2
Bergen, NO
1
Kuopio, FI
1
University of Oslo, Natural History Museumlocation not on record
1
Provincia di Livornolocation not on record
1
ILLSlocation not on record
1
Tilburg, NL
1
Brisbane, AU
1
BClocation not on record
1
TENN-Flocation not on record
1
M-Lichenslocation not on record
1
Hobart, AU
1
WU-MYClocation not on record
1
Trondheim, NO
1
Canberra, AU
1
Barcelona, ES
1
Universidade de Lisboa, Museu Bocagelocation not on record
1
Uniwersytet Łódzkilocation not on record
1
Joensuu, FI
1
GZUlocation not on record
1
59 institutions · 372 of 571 vouchered records shown · 198 without an institution code
09Environmental DNA159 detections
Where the DNA of Athelia arachnoidea 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
Detections DNA found159
Studies independent surveys10
Countries23
Verifiable raw sequence linked2
Signal confidence: moderateweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 159 detections have coordinates
Open the map23 countries0
Spruce(Softwood) dowel buried in soil of a c…Birch(Hardwood) dowel buried in soil of a co…Old spruce dominated forestPalearctic
How strong is each trace?
DNA read depthRead counts were not reported for this species — the map shows presence only, not how strong each trace was.
Measured at samplingin-field
Temperature15.0 °C 15.0–29.0
pH5.60 4.20–7.00
Conductivity44.0 µS/cm 16.0–4,550
Organic carbon2.55 % 0.09–5.38
Water content14.7 % 1.24–74.4
Nitrate-N5.00 mg/kg 0.5–42.0
Phosphorus12.0 mg/kg 2.00–808
Clay14.0 % 1.94–52.0
Sand69.9 % 17.1–97.1
Depth0 m 0–0.2
SoilMarineKurosolVertosolCalcarosolTenosolTenosolsLatLon out of range
33 samples with on-site data · median with range · describes the sample, not the organism
Modelled climatemodelled
−15°Ctemperature across detection sites+40°C
Temperature median9.20 °C 3.90–17.6
Seasonal swing summer↔winter15.1 °C
Max temp (day)14.1 °C 7.80–21.8
Min temp (night)4.90 °C -1.00–13.8
Precipitation54.8 mm/mo 13.2–96.0
Air humidity58.4 % 53.4–66.0
Moisture balance-44.9 mm/mo -131–53.5
Vapour deficit525 Pa 292–808
Wind speed4.00 m/s 2.20–5.00
Cloud cover37.7 % 6.10–55.8
CHELSA 1981–2010, ~9 km grid, at location & month of 153 detection points · median with p10–p90 · reflects where sampling happened, not only the true niche
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.
WikipediaWikimedia Foundation4 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility4 686 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI159 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics3 specimens↗
NCBIUS National Library of Medicinesequences↗
Open Tree of LifeOpenTreephylogeny backbone↗
Catalogue of LifeCOLtaxonomy↗
GLoBIGlobal Biotic Interactionsbiotic interactions↗