A walk to Beacon Hill

Back in 1995, our first spring here, we discovered the lichen Usnea articulata in these oak trees. I usually check that I can still find it here. And it provided something else to try the new lens on. The lichens are quite high up, and the photo is cropped, but it did a reasonable job. The Usnea is a straggly one on the right. I have no idea what the others are.