Question: hi ...spring is almost here though all I see coming up is skunk cabbage... I see this lichen a lot …
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Question
hi ...spring is almost here though all I see coming up is skunk cabbage... I see this lichen a lot where I walk in Medfield, it forms these large colonies on rocks, mainly I think on the cool or north side of the rocks, they are brown (not sure if the turn green later on or not) on top and black underneath..the lichen is big too... are you able to identify it.. these shots taken today in Medfield..3/31/16 thanks very much...
Answer
Dear craymond, the lichen you have photographed appears to be Umbilicaria (rock tripe). I am not a lichen taxonomist, but a common species in the northeast is Umbilicaria mammulata. Thanks for posting several images of the organism you were asking a question about, it makes finding the answer much easier.
