Amanita gemmata, commonly known as the gemmed amanita or the jonquil amanita, is an agaric mushroom of the family Amanitaceae and genus Amanita. The fruit body has a cap that is a dull to golden shade of yellow, and typically 2.5 – in diameter. The cap surface is sticky when moist, and characterized by white warts, which are easily detached. It is initially convex, and flattens out when mature. The flesh is white and does not change colour when cut. The gills are white and closely spaced. The stem is pale yellow, and measures 4 – long by 0.5 – thick. The partial veil that covers the young fruit body turns into the ring on the stem at maturity. The spore print is white, while the spores are roughly elliptical, and measure 8–10 by 6.5–7.5 μm. This species is a mycorrhizal fungus, widespread in Europe. It can grow either singly, scattered, or in groups. It prefers habitats like coniferous and mixed forests and alongside paths, where it fruits in summer and fall. It is a toxic mushroom, containing muscarine, also found in many species in the Clitocybe and Inocybe genera, as well as in Amanita muscaria and A. pantherina, albeit in insignificant quantities in the latter two. It is often confused with various other European species. A. gemmata resembles the false death cap, tawny grisette and panther cap mushrooms. Its cap is brighter in color than the former, and more yellow than the latter two.
No narrative description available for this taxon yet.
Compounds documented for Amanita gemmata across natural-product and food-composition databases — not just the ~150 nutrients on a classic label ("nutritional dark matter").
Compound class profile1 class
Aminoacids2
Documented compounds2 total
Compound
Class
Amount
Source
Ibotenic Acid
present
LOTUS
Muscimol
present
LOTUS
05DNA & barcoding25 specimens
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 Amanita gemmata has left across the world's sequence archives.
At a glance
DNA specimens25
Marker genes3
GenBank sequences9
eDNA detections61
Countries8
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.
★ITS9★ITS1★ITS2
fungal barcode
08Occurrence & distribution
Record type12 160 records
Wild obs. + sensor11 218
Museum / vouchered910
Other32
Origin
Native3
Range
Area of Occupancy AOO11 768 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 accuracy14% within 1 km
≤100 m 806≤1 km 426≤10 km 7 754>10 km 41
9 027 georeferenced · 2 191 without coordinates
Open the mapobservation + sensor11 218
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 91≤1 km 114≤10 km 151>10 km 32
388 georeferenced · 522 without coordinates
Open the institutions mapphysical evidence910
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 institutions44 of 77 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
TENN-Flocation not on record
69
WTUlocation not on record
46
Vancouver, CA
41
Durango, MX
36
Bronx, US
34
Davis and Elkins Collegelocation not on record
30
Bernard Price Institute for Palaeontological Researchlocation not on record
28
WU-MYClocation not on record
24
GJOlocation not on record
22
Copenhagen, DK
22
FLASlocation not on record
21
Vitoria, ES
19
Chapel Hill, US
18
Chicago, US
18
SLU Artdatabankenlocation not on record
16
Mexico City, MX
16
Durham, US
16
Görlitz, DE
16
Zapopan, MX
15
Uppsala, SE
11
Mexico City, MX
11
LDlocation not on record
10
Blacksburg, US
9
Karlsruhe, DE
9
Bando, JP
9
Champaign, US
9
St. Paul, US
9
Museo civico di Storia naturale Giacomo Doria di Genova | Giacomo Doria Natural History Museum in Genoalocation not on record
9
BDBClocation not on record
8
San Sebastián, ES
8
Denver, US
8
Uniwersytet Łódzkilocation not on record
7
Göteborg, SE
7
Ciudad de México, MX
7
Acadia Universitylocation not on record
6
Olocation not on record
6
Centro de Estudios Superiores del Estado de Sonoralocation not on record
4
Odawara, JP
4
Staten Island, US
4
Kew, GB
4
MeiseBGlocation not on record
4
Philadelphia, US
3
Salzburg, AT
3
Mlocation not on record
3
Warsaw, PL
3
Mexico City, MX
3
Bardejov, SK
3
Helsinki, FI
3
Museum Ludovicae Ulricae, Zoology Institute of the University of Uppsalalocation not on record
3
Laramie, US
2
Kyiv, UA
2
Adam Mickiewicz University in Poznańlocation not on record
2
Tartu, EE
2
Auckland, NZ
2
University of the Basque Country (UPV/EHU)location not on record
2
ILLSlocation not on record
2
Toronto, CA
2
TUR-Alocation not on record
1
Catholic University of Pekinglocation not on record
1
McWane Science Centerlocation not on record
1
Slovenian Forestry Institutelocation not on record
1
JA-CAGPDS-CAMlocation not on record
1
Santa Cruz, US
1
UFPRlocation not on record
1
BRNUlocation not on record
1
Nagatoro-machi, Chichibu-gun, JP
1
TFC Miclocation not on record
1
University of Tennessee at Chattanoogalocation not on record
1
Gijón, ES
1
Universidad Nacional Autonoma de Mexico, Instituto de Biologialocation not on record
1
CA
1
Valdosta State University Herbarium (VSC)location not on record
1
Baton Rouge, US
1
Joensuu, FI
1
Private Collection of Autumn Anglinlocation not on record
1
Zürich, CH
1
Madison, US
1
77 institutions · 730 of 910 vouchered records shown · 170 without an institution code
09Environmental DNA61 detections
Where the DNA of Amanita gemmata 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 found61
Studies independent surveys2
Countries8
Signal confidence: moderateweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 61 detections have coordinates
Open the map8 countries0
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 median15.4 °C 6.10–18.0
Seasonal swing summer↔winter17.7 °C
Max temp (day)16.9 °C 8.80–22.2
Min temp (night)14.0 °C 3.30–14.2
Precipitation81.2 mm/mo 59.8–267
Air humidity63.3 % 59.3–66.4
Moisture balance2.00 mm/mo -51.3–155
Vapour deficit588 Pa 339–840
Wind speed3.80 m/s 3.00–5.00
Cloud cover38.6 % 35.3–48.6
CHELSA 1981–2010, ~9 km grid, at location & month of 50 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.