Contact | Blog | Project Noah Facebook | Project Noah Twitter

A global citizen science platform
to discover, share and identify wildlife

Join Project Noah!

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.

Species ID Suggestions

Sign in to suggest organism ID


Christine Y.
Spotted by
Christine Y.

Connecticut, USA

Lat: 41.91, Long: -73.48

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

Related Spottings

Rock tripe Navel Lichen Emery Rock Tripe Smooth Rock Tripe

Nearby Spottings

Pigskin Poison Puffball Potter Wasp Fomes Excavatus Fungi Spotting