Volvariella bombycina, commonly known as the silky sheath, silky rosegill, silver-silk straw mushroom, or tree mushroom, is a species of edible mushroom in the family Pluteaceae. It is an uncommon but widespread species, having been reported from Asia, Australia, the Caribbean, Europe, and North America. The fruit body (mushroom) begins developing in a thin, egg-like sac. This ruptures and the stem expands quickly, leaving the sac at the base of the stem as a volva. The cap, which can attain a diameter of up to 20 cm, is white to slightly yellowish and covered with silky hairs. On the underside of the cap are closely spaced gills, free from attachment to the stem, and initially white before turning pink as the spores mature. The mushroom grows singly or in clusters, often appearing in old knotholes and wounds in elms and maples. V. bombycina contains compounds with antibacterial properties.
No narrative description available for this taxon yet.
Compounds documented for Volvariella bombycina across natural-product and food-composition databases — not just the ~150 nutrients on a classic label ("nutritional dark matter").
Documented compounds1 total
Compound
Class
Amount
Source
Isodeoxyhelicobasidin
present
LOTUS
05DNA & barcoding9 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 Volvariella bombycina has left across the world's sequence archives.
At a glance
DNA specimens9
Marker genes2
GenBank sequences10
eDNA detections39
Countries5
The DNA barcodea real sequence read deposited for this species
Volvariella bombycina strain CCMSSC05188 small subunit ribosomal RNA gene, partial sequence; internal transcribed spacer 1 and 5.8S ribosomal RNA gene, complete sequence; and internal transcribed spacer 2, partial sequence
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.
★ITS10★ITS1
fungal barcode
07Deep time~11.1 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 origin11.1 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 type5 738 records
Wild obs. + sensor5 263
Museum / vouchered463
Other12
Origin
Native4
Range
Area of Occupancy AOO16 776 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 accuracy67% within 1 km
≤100 m 2 280≤1 km 720≤10 km 1 261>10 km 211
4 472 georeferenced · 791 without coordinates
Open the mapobservation + sensor5 263
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 accuracy72% within 1 km
≤100 m 83≤1 km 83≤10 km 56>10 km 10
232 georeferenced · 231 without coordinates
Open the institutions mapphysical evidence463
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 institutions38 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
Bronx, US
36
Zapopan, MX
27
Kew, GB
19
Université de Montréal Biodiversity Centrelocation not on record
17
WU-MYClocation not on record
17
Olocation not on record
17
Copenhagen, DK
16
Görlitz, DE
15
FLASlocation not on record
14
SLU Artdatabankenlocation not on record
13
Chicago, US
11
Karlsruhe, DE
10
Denver, US
10
Philadelphia, US
10
Göteborg, SE
9
San Sebastián, ES
9
LDlocation not on record
8
Warsaw, PL
7
Uppsala, SE
7
Davis and Elkins Collegelocation not on record
6
Ann Arbor, US
6
Provincia di Livornolocation not on record
5
Kyiv, UA
5
Helsinki, FI
5
Tartu, EE
5
JA-CAGPDS-CAMlocation not on record
5
Bernard Price Institute for Palaeontological Researchlocation not on record
5
Mlocation not on record
5
Toronto, CA
5
St. Paul, US
5
MAlocation not on record
5
TENN-Flocation not on record
5
WTUlocation not on record
4
Kathmandu, NP
4
MeiseBGlocation not on record
4
Museo civico di Storia naturale Giacomo Doria di Genova | Giacomo Doria Natural History Museum in Genoalocation not on record
4
Colorado State Universitylocation not on record
3
Champaign, US
3
ILLSlocation not on record
3
Blacksburg, US
2
DPIlocation not on record
2
GJOlocation not on record
2
Vitoria, ES
2
Catholic University of Pekinglocation not on record
2
Bardejov, SK
2
Durango, MX
2
Baton Rouge, US
2
IPA/SPlocation not on record
2
nsnflocation not on record
2
BDBClocation not on record
2
Turku, FI
1
CA
1
Córdoba, ES
1
BRNUlocation not on record
1
Tomioka, JP
1
Salamanca, ES
1
Museum Ludovicae Ulricae, Zoology Institute of the University of Uppsalalocation not on record
1
National Institute of Biological Resourceslocation not on record
1
Centro de Estudios Superiores del Estado de Sonoralocation not on record
1
Jyväskylä, FI
1
Chapel Hill, US
1
Durham, US
1
Universidade de Lisboa, Museu Bocagelocation not on record
1
HabitatVisionlocation not on record
1
Stockholm, SE
1
University of Oslo, Natural History Museumlocation not on record
1
Cornell University, Plant Pathology Herbariumlocation not on record
1
KNAMlocation not on record
1
Cincinnati, US
1
Adam Mickiewicz University in Poznańlocation not on record
1
Mexico City, MX
1
Valdosta State Universitylocation not on record
1
Kuopio, FI
1
University of Tennessee at Chattanoogalocation not on record
1
74 institutions · 410 of 463 vouchered records shown · 50 without an institution code
09Environmental DNA39 detections
Where the DNA of Volvariella bombycina 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 found39
Studies independent surveys4
Countries5
Signal confidence: moderateweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 39 detections have coordinates
Open the map5 countries0
Willow log. Maple cherry
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
pH7.39 5.72–8.87
Conductivity44,500 µS/cm 3,210–105,200
Organic carbon2.84 %
Clay8.93 %
Sand74.1 %
Depth0 m
SoilTenosolChromosolVertosolKandosolRudosol
21 samples with on-site data · median with range · describes the sample, not the organism
Modelled climatemodelled
−15°Ctemperature across detection sites+40°C
Temperature median21.0 °C 16.2–23.2
Seasonal swing summer↔winter12.6 °C
Max temp (day)27.1 °C 20.6–29.2
Min temp (night)15.5 °C 11.4–17.7
Precipitation6.70 mm/mo 4.90–61.5
Air humidity45.8 % 44.1–59.5
Moisture balance-112 mm/mo -137–-31.3
Vapour deficit1,327 Pa 859–1,558
Wind speed3.60 m/s 2.80–4.40
Cloud cover23.7 % 17.8–38.2
CHELSA 1981–2010, ~9 km grid, at location & month of 35 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 Foundation11 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility5 738 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI39 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics9 specimens↗
NCBIUS National Library of Medicinesequences↗
LOTUSNatural Products (Wikidata)compounds↗
Open Tree of LifeOpenTreephylogeny backbone↗
Catalogue of LifeCOLtaxonomy↗
GLoBIGlobal Biotic Interactionsbiotic interactions↗