I am trying to grow some ferns from spores. I saw the spores
something like 4-5 months ago.
The prothallies have developed great - I just wonder, when the
sporophyts will be ready to grow.
I thought it won't take longer than some weeks, because I was told the
prothallies will die within that time.
Hence, I wonder how long it takes for the archegonia to be fertiles.
(By the way, sorry for my bad english, I'm german)