Strange leaf spots-please identify

[debisbooked]

Can anyone tell me if what these spots are? They are on several java fern leaves, but not on all. Are they eggs? This tank has neons, black skirt tetras, bolivian rams, and cories PLUS a gazillion mts (snails). I did a water change a few days ago and I don't think they were there at that time.

 

[aqua_chem]

Those are spores. It's part of the sexual reproduction cycle of ferns.

 

[debisbooked]

Those are spores. It's part of the sexual reproduction cycle of ferns.

Thanks! Shows how much I know about plants!