The Green Man hit right on the nose there. There are also numberous sites out there that deal with that portion of Christian Mythology (please no theological arguments about the use of the term 'mythology').
Hey Scott, I don't know how in-depth or accurate you want to get with this, but here's the URL for a site that spells it all out for you (some of it is a little flaky, but it's got a hella-good search engine attached to the main page).