What is this fern ?

Sown last week in a greenhouse at "Les Serres d'Auteil" Paris:

Many thanks for helping me.

 

The one in the front could be Pityrogramma triangularis - Goldenback Fern. The one in the back could be a Blechnum. Wait & see if there is any confirmation from others.

gb

 

Many thanks for your proposition. Looks like.
Greetings.
JPierre

 

The woman working at "Serres d'Auteuil" and responsible of the ferns greehouse has just told me that she thought to have found the name of that fern which could be :
Doryopteris cordata "Antenna fern" .
What do you think of that ?

 

Could well be. I am not familiar with that one. Dorypteris cordata is being sold as a "tropical". Pityrogramma triangularis is definitely hardy.
If the lower greenery in the pot is part of the same plant, it is definitely not Pityrogramma. I can find little in the way of botnaical description for Dorypteris on the net. Sorry to be no help.

gb.

 

Thanks for your help GB!