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NarrativeWikipediaarticle
Occurrence & distributionGBIF582 records
01Narrative
Placidium arboreum, commonly known as the tree stipplescale, is a species of corticolous (bark-dwelling), squamulose (scaley) lichen in the family Verrucariaceae. It has a primarily North American distribution, with a range extending from eastern Canada south to Mexico, although it has also been reported from the West Indies and from Argentina.
No narrative description available for this taxon yet.
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Coordinate accuracy63% within 1 km
≤100 m 38≤1 km 14≤10 km 7>10 km 24
83 georeferenced · 19 without coordinates
Open the mapobservation + sensor102
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 accuracy24% within 1 km
≤100 m 4≤1 km 18≤10 km 59>10 km 9
90 georeferenced · 390 without coordinates
Open the institutions mapphysical evidence480
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 institutions19 of 29 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
173
St. Paul, US
46
University of Stellenboschlocation not on record
38
Durham, US
36
Wuzhou, CN
25
Madison, US
25
US
23
PHlocation not on record
23
DOI/NPS, Colonial National Historical Parklocation not on record
15
Minia, EG
12
Clarksville, US
10
AUAlocation not on record
9
Knoxville, US
7
ASUlocation not on record
6
Boise, US
6
ILLSlocation not on record
5
Chapel Hill, US
4
Santa Barbara, US
3
Stockholm, SE
3
Columbia, US
1
US
1
Chicago, US
1
Laboratorio de Ictiologialocation not on record
1
University of Gdansklocation not on record
1
Bergen, NO
1
Philadelphia, US
1
Fort Hayslocation not on record
1
Museo civico La Terra e l'Uomo di Crocetta del Montellolocation not on record
1
Uppsala, SE
1
29 institutions · 479 of 480 vouchered records shown · 1 without an institution code
