Hard to see with the blurred pics, but it looks to me like a Hydrocotyle of some kind.
Hydrocotyle verticillata
Hydrocotyle sibthorpioides
Hydrocotyle leucocephala
Any of these jog your memory?
This plant is likely Marselia quadrofolia...definitely Marselia spp.
Eventually the leaves will turn to a single oval....<a lot like glosso>. It propagates by shooting out runners and each leaf will have a root system.
Its hard to tell from the pictures but I don't think its Marselia quadrofolia. I think it looks more like Hydrocotyle verticillata. Rob, can you take the picture from a little farther away so its not as blurry? Or take it with the Macro setting.
I dunno what was going on with my camera but I couldn't get a better pic maybe I'll try later now that its in the tank.
Now that I come to think of it the card had the name followed by a word in brackets that started with an "M" quite possibly could have been Marselia. Thanks.