Bark Barnacles

Thelotrema lepadinum (Ach.) Ach.

Also called: barnacle lichen

Edibility

Edibility unknown — do not eat

Never eat a wild mushroom based on this site or any app.

Photos

Photo: Randal. CC0. Source (inaturalist)
Photo: Randal. CC0. Source (inaturalist)
Photo: wweellll. CC-BY. Source (inaturalist)
Photo: Randal. CC0. Source (inaturalist)

Lookalikes

No lookalikes are recorded for this species yet. That does not mean there are none. Many mushrooms look alike, so never rely on appearance alone.

Season

When this species has been recorded, by month, from open-licensed US and Canada observations. It shows when people report it, not a guarantee it is fruiting.

The highlighted bar is the current month.

View season data as a table

Recorded observations of Bark Barnacles by month
Month	Records
January	13
February	8
March	33
April	31
May	50
June	104
July	161
August	127
September	88
October	48
November	20
December	17

Where it is found

States and provinces with the most records. Check the foraging rules for the place you plan to visit.

British Columbia 321 records · Foraging rules
Washington 159 records · Foraging rules
Oregon 32 records · Foraging rules
New Brunswick 32 records · Foraging rules
Alaska 27 records · Foraging rules
California 24 records · Foraging rules
Newfoundland and Labrador 23 records · Foraging rules
Maine 20 records · Foraging rules
Hawaii 16 records · Foraging rules
Massachusetts 12 records · Foraging rules
Nova Scotia 12 records · Foraging rules
South Carolina 7 records · Foraging rules
Louisiana 5 records · Foraging rules
West Virginia 4 records · Foraging rules
Florida 3 records · Foraging rules

Show 6 more

Georgia2 records
Quebec1 records
North Carolina1 records
Texas1 records
Michigan1 records
Colorado1 records

All state and province foraging laws

About

Thelotrema lepadinum is a species of crustose lichen in the family Graphidaceae. Commonly known as bark barnacles, it forms a greyish crust on tree bark, dotted with numerous small, urn-shaped fruiting bodies that have distinctive white-rimmed openings. The lichen is found worldwide on smooth-barked deciduous trees, and in Europe it serves as an indicator of ancient woodland due to its preference for long-undisturbed forests. First described by the Swedish lichenologist Erik Acharius in 1799, the species has been reclassified multiple times throughout its taxonomic history.

From Wikipedia, CC BY-SA 4.0. Read the original article.

Recent finds

No community finds tagged with this species yet. Log a find.

More in the genus Thelotrema

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