looking for Dutchman's Pipe Vine Seeds
Here is a link that might be useful: My Swap List
Which one are you looking for?
I'm in zone 6 and have Aristolochia macrophylla, but the seeds aren't ripe yet; the seed pods are still green. I can save them for you if you want to send a SASE. Sorry but I don't need any seeds as I'm downsizing. I get Pipevine Swallowtail caterpillars on my pipevine every year and am raising some right now.