Swede is Rutabage, rosso is like purple curly endive. Can't really explain Rocket and Lambs lettuce. I can't really find a decent picture of them either!
This is rocket
http://www.tandmpics.com/280/7/705.jpg.. all the search engine kept coming up with was Space rockets!!! Lamb lettuce is this:
http://fothergills.co.uk/images/deta...alad-large.jpg