Mad Cow wrote:
How do you keep it from falling off its stump?

The stump has a hollow in it and the base of the fern is sitting in the
hollow.

Thanks for helping to save it from extinction, it really would be a
shame for the world to lose something so weird-looking.

Yes it would, though from reading the article, it seems they are only
endangered in NSW, I live in Qld and they seem to be reasonably safe here,
(for the time being).
As an aside, I live in a valley and on one of the roads out of the valley,
up a steep climbing road, high on some rocks on the cliff side, there is a
huge basket fern growing, I've never seen one so big, it must be a good 2
metres across.