One plant with a banana...a different plant with the seed-thing. what would you do?
The other plant with the seed thing looked like it had bananas aswell...
edit: maybe its just the picture, have another good look at them...
You could harvest the hermis now (dont know how good it would be) or isolate them and grow them out. If it was me I wouldnt risk them pollinating the rest, I'd chop em.