I never really considered that the lichen and moss might actually have a symbiotic relationship with my orchids, staghorns, tillandsia, and/or bromeliads that I mount. I just sort of thought, well, if the wood makes a good host to lichen and or moss, it ought to make a good host to my plants.
When I order my batches of cork slabs from the importer, I always tell them to pick out those that are loaded with lichen and/or moss. I think they probably believe I am some of sort weird fellow, wanting slabs of cork with "imperfect" surfaces. But for me the thicker, the more gnarly, the more lichen/moss loaded the slabs are the better.
moss
lichen
moss
lichen
