Foxfire, in the classic sense, is the fungus not the gas. I won't say that some people don't refer to the gas as "foxfire", but the traditional use of the term refers to several species of fungi which exhibit bioluminescence. The glowing gas is usually referred to as simply "swamp gas". I was a kid when I read the first Foxfire book, but I THINK it explains the term from which they took the title. We used to look for it as kids, just to "ooh" and "aah" over, poke it with a stick, etc. Wikipedia has a picture of it if you search for "foxfire".
Last edited by vh20; 07/22/07 12:45 AM.