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Smooth Rock Tripe

Umbilicaria mammulata


Large foliose lichen that was greenish brown on top and black underneath.


Growing on a large rock among moss and other lichens in a deciduous forest.


U. mammulata is one of the largest lichens in the world. The thallus can be up to 15cm in diameter. The largest in this spotting was approximately 7cm.

No species ID suggestions

Connecticut, USA

Lat: 41.91, Long: -73.48

Spotted on Oct 11, 2017
Submitted on Oct 12, 2017

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