yes, Ferns (those very ancient plants) have Sperm and it moves... a bit like ours. Be afraid? Learnt this on Ian Stewart's Power Of Flowers (btw, most gay sounding documentary ever?) on the BBC yesterday. go ancient plants! Also this is why ferns can only live in wet places...
edit: sorry, first submission, cocked up:
links: http://www.youtube.com/watch?v=fUEG8e9baKc http://en.wikipedia.org/wiki/Fern
I wanted the title to link to a video, not myself, if anyone can edit?
Here's the programme for anyone with iPlayer access (valid for 1 week): http://www.bbc.co.uk/iplayer/episode/b01c8b5t/How_to_Grow_a_Planet_The_Power_of_Flowers/