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.