Rhytisma acerinum is a plant pathogen that commonly affects sycamores and maples in late summer and autumn, causing tar spot. Tar spot does not usually have an adverse effect on the trees' long-term health. R. acerinum is an Ascomycete fungus that locally infects the leaves of trees and is a biotrophic parasite.Roland W.S. Weber and John Webster (2002). Teaching techniques for mycology: 18. Rhytisma acerinum, cause of tar-spot disease of sycamore leaves. Mycologist, 16, pp 120-123 The disease is cosmetic and is therefore usually controlled only with sanitation methods.Hudelson, Brian. Wisconsin Horticulture UW-Extension Cooperative Extension. UW-Madison Plant Pathology, April 25, 2004. Web. Oct. 22, 2011.
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 Rhytisma acerinum has left across the world's sequence archives.
At a glance
DNA specimens7
Marker genes2
GenBank sequences10
eDNA detections26
Countries5
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★ITS1
fungal barcode
08Occurrence & distribution
Record type46 211 records
Wild obs. + sensor44 299
Museum / vouchered1 863
Other49
Origin
Native6
Range
Area of Occupancy AOO78 760 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 accuracy53% within 1 km
≤100 m 16 432≤1 km 4 565≤10 km 18 370>10 km 333
39 700 georeferenced · 4 599 without coordinates
Open the mapobservation + sensor44 299
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 accuracy33% within 1 km
≤100 m 72≤1 km 357≤10 km 672>10 km 199
1 300 georeferenced · 563 without coordinates
Open the institutions mapphysical evidence1 863
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 institutions43 of 85 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Bernard Price Institute for Palaeontological Researchlocation not on record
392
Olocation not on record
235
Helsinki, FI
125
Catholic University of Pekinglocation not on record
89
Bronx, US
88
Uppsala, SE
72
Görlitz, DE
63
Chicago, US
48
LDlocation not on record
47
Madison, US
46
FLASlocation not on record
37
Karlsruhe, DE
33
Champaign, US
31
Tartu, EE
29
Uniwersytet Łódzkilocation not on record
24
WU-MYClocation not on record
23
ILLSlocation not on record
22
Lincoln, US
21
Trondheim, NO
20
MeiseBGlocation not on record
18
Baton Rouge, US
15
DPIlocation not on record
15
Museo Entomologico de Leonlocation not on record
15
PHlocation not on record
14
St. Paul, US
13
Stockholm, SE
13
GJOlocation not on record
12
SLU Artdatabankenlocation not on record
11
Grupo Actinomicetales Merida Facultad de Medicinalocation not on record
11
Kew, GB
10
Mlocation not on record
10
Copenhagen, DK
10
Brown Universitylocation not on record
9
Toronto, CA
9
Pullman, US
9
Adam Mickiewicz University in Poznańlocation not on record
8
San Sebastián, ES
8
TENN-Flocation not on record
8
Université de Montréal Biodiversity Centrelocation not on record
7
Salzburg, AT
6
Philadelphia, US
6
BDBClocation not on record
5
Zürich, CH
5
Clemson, US
5
Museo civico di Storia naturale Giacomo Doria di Genova | Giacomo Doria Natural History Museum in Genoalocation not on record
4
TROMlocation not on record
4
Oskarshamn, SE
4
Museum Ludovicae Ulricae, Zoology Institute of the University of Uppsalalocation not on record
3
Norwegian Institute of Bioeconomy Researchlocation not on record
3
Bardejov, SK
3
Ann Arbor, US
3
Slovenian Forestry Institutelocation not on record
3
Vitoria, ES
3
Logan, US
3
Cincinnati, US
3
Bourges, FR
3
Joensuu, FI
2
Institute of Botany of the Academy of Science of the Republic of Uzbekistanlocation not on record
2
Institute of Botany of the Academy of Sciences of the Republic of Uzbekistanlocation not on record
2
nsnflocation not on record
2
McWane Science Centerlocation not on record
2
Tilburg, NL
2
Natural History Museum Rotterdamlocation not on record
2
GZUlocation not on record
2
Berlin, DE
1
Göteborg, SE
1
CABI Bioscience Genetic Resource Collectionlocation not on record
1
UNINE:NEUlocation not on record
1
University of Tennessee at Chattanoogalocation not on record
1
Oulu, FI
1
Gijón, ES
1
Porvoo, FI
1
Durham, US
1
Canberra, AU
1
Winterthur, CH
1
Universidade de Lisboa, Museu Bocagelocation not on record
1
Odawara, JP
1
Staten Island, US
1
Royal Botanic Gardens, Kewlocation not on record
1
PRClocation not on record
1
University of Oslo, Natural History Museumlocation not on record
1
Vancouver, CA
1
MAlocation not on record
1
Senckenberg Gesellschaft für Naturforschung: Senckenberg Forschungsinstitut und Naturmuseumlocation not on record
1
Uniwersytet Wrocławskilocation not on record
1
85 institutions · 1 773 of 1 863 vouchered records shown · 89 without an institution code
09Environmental DNA26 detections
Where the DNA of Rhytisma acerinum 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 found26
Studies independent surveys3
Countries5
Signal confidence: moderateweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 26 detections have coordinates
Open the map5 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 median13.2 °C 6.00–16.1
Seasonal swing summer↔winter19.5 °C
Max temp (day)14.7 °C 8.60–19.1
Min temp (night)10.7 °C 3.40–13.2
Precipitation63.5 mm/mo 48.8–93.0
Air humidity62.6 % 61.5–67.3
Moisture balance-13.5 mm/mo -28.5–54.5
Vapour deficit572 Pa 293–683
Wind speed4.60 m/s 3.20–7.00
Cloud cover43.2 % 38.5–53.8
CHELSA 1981–2010, ~9 km grid, at location & month of 22 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 Foundation9 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility46 211 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI26 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics7 specimens↗
NCBIUS National Library of Medicinesequences↗
Open Tree of LifeOpenTreephylogeny backbone↗
Catalogue of LifeCOLtaxonomy↗
GLoBIGlobal Biotic Interactionsbiotic interactions↗