nice photo's John - Hey Mill that S. atropurpureum is very pretty with the dark purple coloring through out the entire plant.
I decided to get some S. torvum and S. sisymbrifolium I think Baker's creek Heirloom seeds has them. I would like to find S. insanum or S. macrocarpum which is a African variety of the eggplant. Some of the wild Solanums are being used to graft with eggplants and tomatoes. I had a lousy season and need to rethink my way of growing things especially my Solanum plants like tomatoes and eggplants the rain and heat killed just about everything except for my peppers and I might try some of them that have been grafted. This is off topic so I'll get back to the plants, S. incanum and S. intergrifolium are quite thorny if I remember right, but I have no source for them, does anyone know if there is a vendor that sells wild Solanum seeds?