Lichen or Seaweed?

There's been a ghost in the machine again and I haven't been able to blog for a week. I'm hoping that it's been exorsised. I caught up briefly with Freshly Found and found this post on lichens. Denise has such a talent for spotting the little things. Funny enough on my trip to the Wild Coast in April it was one of the things I noticed as well. Amazing how much a tree trunk can resemble a reef.

I suppose the humidity has something to do with it. Have a great weekend.