The "aqua fern" is neither java fern as zak15 suggested, nor is it the African water fern. It is Trichomanes javanicum, not an aquatic plant at all, despite the label saying it's only for aquariums.
I'm really considering writing a letter to somebody high up, not that I think it will do much good. But, maybe they'll listen to an employee more than they would a customer. I'm sure as heck not going to tell anybody those plants can live in an aquarium. I'll tell PS that too. It's really making me question the honesty and integrity within the company. If they tell customers lies, whose to say they aren't telling the employees lies? That's something else I'll point out.
On a related note...I read some place that when wisteria is grown out of the water, it becomes toxic. Is this true? If so, the wisteria at PS would be toxic.
Oh, and thanks vampie, for your list. A couple of the ones that you didn't have the scientific name for, I do. The umbrella plant is a Spathiphyllum wallisii (a peace lilly?). I also had the name for the peacock fern, but I can't remember what it was, just that it was not a real aquatic plant either.