Smooth Rock Tripe

Umbilicaria mammulata (Ach.) Tuck.

Also called: Smooth Rock Tripe Lichen, navel lichen

Edibility

Edibility unknown — do not eat

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

Photos

Photo: Alaina Krakowiak. CC-BY. Source (inaturalist)
Photo: swords. CC0. Source (inaturalist)
Photo: M Sorensen. CC0. Source (inaturalist)
Photo: Sean Feirstein. CC-BY. 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 Smooth Rock Tripe by month
Month	Records
January	85
February	70
March	216
April	366
May	421
June	556
July	550
August	557
September	420
October	324
November	149
December	140

Where it is found

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

North Carolina 491 records · Foraging rules
Ontario 384 records · Foraging rules
New Hampshire 374 records · Foraging rules
Massachusetts 360 records · Foraging rules
Virginia 331 records · Foraging rules
Pennsylvania 285 records · Foraging rules
Maine 236 records · Foraging rules
Minnesota 198 records · Foraging rules
West Virginia 194 records · Foraging rules
New York 188 records · Foraging rules
Vermont 144 records · Foraging rules
Tennessee 138 records · Foraging rules
Quebec 116 records · Foraging rules
Connecticut 99 records · Foraging rules
Maryland 81 records · Foraging rules

Show 27 more

Georgia65 records
Nova Scotia62 records
Kentucky59 records
New Jersey56 records
Michigan47 records
Wisconsin46 records
Rhode Island21 records
Ohio15 records
Alabama9 records
Colorado8 records
South Carolina8 records
California8 records
Alaska7 records
New Brunswick6 records
Manitoba4 records
British Columbia3 records
Saskatchewan3 records
Washington3 records
Missouri2 records
Idaho2 records
Texas2 records
Newfoundland and Labrador2 records
Montana2 records
Illinois1 records
Arizona1 records
Nunavut1 records
Iowa1 records

All state and province foraging laws

About

Umbilicaria mammulata, or smooth rock tripe, is a foliose lichen found on boulders and rock walls. It is one of the largest known lichens, typically growing to a size of 4 to 15 cm (1.6 to 5.9 in).

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

More in the genus Umbilicaria

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