Gorgeous pictures! Fascinating how some of these specimens are reminiscent of corals and some aquatic plants. I didn't know these types of vegetal were lichen. I am more familiar with the common moss, did you know it contains small amounts of iodine and can be used to filter water as a last resort (though, don't try it if you are not in a survival situation, it is not proven to be 100% effective in all situations). Do you know if some of the specimens you photographed also have some of these practical properties? Also, I'm working on compiling a herbarium on steemit, if you would like to join the effort and share some of your pictures and knowledge, simply use the "herbarium" tag. I hope to see you there! Thanks for the beautiful pictures, have a nice day!