Exidia recisa (common name willow brain or amber jelly roll) is a jelly fungus in the family Auriculariaceae. It is a common, wood-rotting species throughout the northern hemisphere, typically growing on dead attached twigs and branches of willow and other broadleaf trees.
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 Exidia recisa has left across the world's sequence archives.
At a glance
DNA specimens5
Marker genes2
eDNA detections8
Countries5
Marker genes sequenced
★ 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.
★ITS★ITS1
fungal barcode
07Deep time~75.5 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 origin75.5 Ma TimeTree
When this lineage existed
How to read this: the coloured strip along the bottomdown the left is the geological calendar — the standard periods (Jurassic, Cretaceous…) every museum uses, shown so you can see which chapter of Earth's history this lineage lived in. The dashed rules marked ✦ are the five great mass extinctions. 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 originmass extinction
08Occurrence & distribution
Record type8 911 records
Wild obs. + sensor7 881
Museum / vouchered1 024
Other6
Origin
Native10
Range
Area of Occupancy AOO21 872 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 accuracy76% within 1 km
≤100 m 4 511≤1 km 1 122≤10 km 1 640>10 km 121
7 394 georeferenced · 487 without coordinates
Open the mapobservation + sensor7 881
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 accuracy49% within 1 km
≤100 m 64≤1 km 287≤10 km 271>10 km 97
719 georeferenced · 305 without coordinates
Open the institutions mapphysical evidence1 024
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 institutions41 of 74 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
145
Bernard Price Institute for Palaeontological Researchlocation not on record
111
Helsinki, FI
90
Tartu, EE
54
Uppsala, SE
54
Baton Rouge, US
49
TENN-Flocation not on record
34
Copenhagen, DK
31
Chicago, US
27
Kew, GB
21
Pullman, US
16
Vancouver, CA
15
Université de Montréal Biodiversity Centrelocation not on record
14
Cincinnati, US
14
Trondheim, NO
12
Acadia Universitylocation not on record
12
Karlsruhe, DE
11
Toronto, CA
11
TROMlocation not on record
11
SLU Artdatabankenlocation not on record
11
ILLSlocation not on record
11
WU-MYClocation not on record
10
Catholic University of Pekinglocation not on record
10
Philadelphia, US
10
Champaign, US
9
LDlocation not on record
8
Bronx, US
8
Zürich, CH
7
Davis and Elkins Collegelocation not on record
7
MAlocation not on record
6
Salzburg, AT
6
Universidade de Lisboa, Museu Bocagelocation not on record
6
FLASlocation not on record
6
Joensuu, FI
6
Ann Arbor, US
5
Durham, US
4
Vitoria, ES
4
Oulu, FI
4
Warsaw, PL
4
Museo civico di Storia naturale Giacomo Doria di Genova | Giacomo Doria Natural History Museum in Genoalocation not on record
4
St. Paul, US
4
GJOlocation not on record
4
Lincoln, US
4
Colorado State Universitylocation not on record
3
Museum Ludovicae Ulricae, Zoology Institute of the University of Uppsalalocation not on record
3
HabitatVisionlocation not on record
3
San Sebastián, ES
3
Denver, US
3
Tomioka, JP
3
Chapel Hill, US
2
National Mushroom Centre, Department of Agriculture, Ministry of Agriculture and Livestock, Bhutanlocation not on record
2
Madison, US
2
University of the Basque Country (UPV/EHU)location not on record
2
Grupo Actinomicetales Merida Facultad de Medicinalocation not on record
2
JA-CAGPDS-CAMlocation not on record
2
WTUlocation not on record
2
Berlin, DE
1
Provincia di Livornolocation not on record
1
CA
1
Gijón, ES
1
Tilburg, NL
1
NAlocation not on record
1
Jyväskylä, FI
1
McWane Science Centerlocation not on record
1
Kuopio, FI
1
US
1
Asheville, US
1
Göteborg, SE
1
UNINE:NEUlocation not on record
1
Fort Hayslocation not on record
1
PHlocation not on record
1
IFR-DNFlocation not on record
1
Staten Island, US
1
University of Oslo, Natural History Museumlocation not on record
1
74 institutions · 940 of 1 024 vouchered records shown · 84 without an institution code
09Environmental DNA8 detections
Where the DNA of Exidia recisa 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 found8
Studies independent surveys3
Countries5
Signal confidence: moderateweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 8 detections have coordinates
Open the map5 countries0
On twigs of Salix caprea in small, old clear…
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.
Modelled climatemodelled
−15°Ctemperature across detection sites+40°C
Temperature median4.10 °C -3.10–4.70
Seasonal swing summer↔winter21.0 °C
Max temp (day)5.90 °C -1.10–7.00
Min temp (night)-0.5 °C -5.00–1.80
Precipitation65.6 mm/mo 19.4–200
Air humidity69.2 % 62.9–73.1
Moisture balance98.9 mm/mo
Vapour deficit225 Pa 148–305
Wind speed3.80 m/s
Cloud cover51.2 % 46.8–67.1
CHELSA 1981–2010, ~9 km grid, at location & month of 5 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 Foundation6 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility8 911 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI8 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics5 specimens↗
Catalogue of LifeCOLtaxonomy↗
GLoBIGlobal Biotic Interactionsbiotic interactions↗