I’ve written a lot of stories, racking up to nearly three million words by Christoffer Petersen alone. So, if you’ve stumbled across “black lichen” more than once in my stories, now you know why. 🙂
It’s crisp to the point of painful under your palm.
It makes a satisfying crunchy sound when you slip on it. (The slipping part is less satisfying.)
And in the summer, the black lichen is, well, orange.
Actually, I think there’s more than one kind of lichen here, but my trusty Greenland field guide has failed me on this point. I probably just need a different field guide. However, my best bet is Crinkled Snow Lichen. But, I think the orange “stuff” is Caloplaca marina (yeah, I’m wikipediaing here) and the black stuff could be Caloplaca thallincola, both of which are crusty.
We’re going with “crusty lichen” here, folks. And at the risk of getting the geology wrong, I think this crusty stuff is on granite. 😉