Using lichen, witches hair, old man's beard or what ever you call it is fine in the summer but I have been out when it was damp and it was a bugger to start with simply an match. A little bit of solid bbq starter works wonders and burns well in a windy situation. Anyone who ventures into the woods off the beaten path should have a small road flare in their pack. In a survival situation a flare can even get damp wood burning. It should be stood upright as on it's side it can go out.
We were called out for a search for a missing hunter,our anniversary party but I went because I knew the country. We found the guy on a logging road wearing cotton cover alls and soaked to the ass. He had no matches, no compass, no pack and had tried to get a fire going by using a boot lace to make and bow. Had he been forced to spend the night he would have been in a bit of trouble.
His trouble all started when he went after a deer he had wounded and got disoriented.