You are bidding on 5 seeds of Magnolia virginiana australis. 

It is a beautiful US native tree that gets great glossy evergreen foliage and fragrant white flowers.  These beautiful plants are hardy to USDA zone 5, possibly colder, and they grow best in full sun to shade.  They would make excellent additions to your rare plant collection, or just make a unique statement in your yard.

HAPPY GARDENING :)