What Kind of Stuff Grows on Palm Trees?

While taking a walk yesterday afternoon we happened on three different palm trees in the neighborhood that have become hosts to other plant life.  At the top is a full blown fern garden. Next we have some ferns but other smaller plants as well.  And finally we have a trunk covered with a vine of some sort.  I am new to Florida, so the correct names of all of these escape me.  Remember, a click on each photo will allow you to see a larger version.