Looking for some pretty elusive seeds

A friend has asked me to look around for some pretty rare seeds, but I can't seem to find them. Only a few seeds would do. Maybe you can help?

I'm looking for:
Aristolochia hirta
Cleome lutea
Scrophularia macranta
Scrophularia sambucifolia

In return, you can choose from my seed list: www.freewebs.com/garden-gnomes-adventures under 'seed lists'

If you can help, please send me de-mail!