plant ID again!!!

Hello everyone, I did it again... Can't help it... I'm probably going to do it tomorrow as well!!!
Acquired these, but again the place I bought them from say they're mixed bunch plants:huh:

I'd really appreciate an ID on these:

Thanks in advance, B.

Oh, I was also given a dwarf water lilly from the nusery down the road from me.
The owner phones me every now and again, when he's re-potting or dividing plants
and says, " I've got some stuff for you to play with... I'm going to trim all the leaves
off the rhizoid, trim the roots a bit and dump it into the discus tank...
This is not a usual aquarium lilly, but a tropical dwarf water lilly. max hight 60cm,
spread 30 to 40 cm. The ones I tried a few years ago in my heated tropical pond, went bezerk,
even flowering through winter!

 

Don't pic one is aquatic? But three and four look like bapoca something or other...

 

pic 2 may be an emmersed form of hygrophilia, last pic is defn bacopa monieri and never had the 1st plant but it may be a water sprite/indian fern?

 

pic 1 is a non aquatic (Selaginella willdenowii), pic 2 is emmersed hygrophila polysperma, pic 3 looks to be emmersed rotala rotundifolia, pic 4 as shihr said b. monnieri.

 

Thanx guys. Ive planted the hygrophila polysperma, rotala rotundifolia and the bacopa and will assign the Selaginella willdenowii to the paludarium I'm planning. Have already got most of the plants for it, so will be starting that build soon.