White-laced Crucifer - Sweet Smelling Possibilities

The other day I found a wonderful looking ad that touted a collection of seeds for sweet smelling flowers.  One was White-laced Crucifer.  I had no clue what that was.  I have decided, after poking around in period magazines and so forth that it is probably a rock cress or a wall flower.  The family Brassicaceae , older name Cruciferae, is a very large family of plants with four-petaled flowers.  

You can find some common names in Louise Beebe Wilder's Colour in My Garden .

This book turned up in the search.  There are some nice plates in this book.

White-Laced Crucifer - Mystery Flower

I wonder what it is.  This we need to find out!

First, the name itself...does it help describe the flower?From Wikipedia: A crucifer is, in some Christian churches (particularly the Roman Catholic Church, Anglican Communion, andLutherans), a person appointed to carry the church's processional cross, a cross or crucifix with a long staff, during processions at the beginning and end of the service. However, while it is used in several different denominations, the term is most common within Anglican churches.

The term "crucifer" comes from the Latin crux (cross) and ferre (to bear, carry). It thus literally means "cross-bearer".

  Nice ad, isn't it?