Plants, moss?, fern

Hi Everyone,

Can anyone identify these 4 species? The pictures were taken on Burnaby Mountain.

Picture 1: Could this be a young red alder (alnus rubra)?
Picture 2: Are these white/translucent stringy things from some kind of moss? There are little brown balls at the end of the white strings.
Picture 3: Unknown plant.
Picture 4: Could this be Oak fern (gymnocarpium dryopteris) or Western oak fern (gymnocarpium disjunctum) ?

Thank you very much,

Jason

 

#1 certainly looks like an alder seedling; which species of Alnus, I can't tell.

#3 is a dock, likely Broad-leaved Dock Rumex obtusifolius.

 

#2 is liverwort setae

 

Thank you!

 

... I was thinking Lady Fern for #4?

-frog

 

That was my first thought too, but something didn't seem completely right for it, so I left it unanswered in my first posting.