Hi,

Very nice Fittonias.

I think the plant you're asking about is some kind of Pilea.

That would be my guess but what kind of Pilea has all silver leaves?

looks like lamium to me - maybe not, lamium's leaves are little more pointy? (just like the bottom silver-leaved plant)...

EDIT:
Is it the one circled in red? - try silver waffle plant...

Rina

This post was edited by rina_ on Thu, Mar 13, 14 at 18:59

I doubt they would put lamium in those arrangements, I think it is Pilea too, maybe P. cadieri

Found a pilea sp. Moonlight on Glasshouse Works page - looks similar:

http://www.glasshouseworks.com/pilea-species-moonlight

or

http://www.glasshouseworks.com/pilea-pubescens-liebmannii-silver-cloud

This post was edited by rina_ on Thu, Mar 13, 14 at 19:23

That's a pretty pic! My first thought was Pilea too. Hemigraphis could offer a similar look but I'm pretty sure that's not what this is, the veins in the leaf don't match.