Thank you so much for your reply on lichen. I had asked it because someone had told me they were impossible to propagate and I wondered if this was true so started searching. I have Brodo's Lichen book, but there was no answer there. My fences, rock and bark here are covered prolifically with lichens of all sorts so I don't need to think about propagating them--just enjoying them and letting them be. Happy Thanksgiving, Diana Fish