Tropicals & Tender Perennials: Mexican Petunia, 0 by Anaid

Anaid wrote:
I stole some of cuttings from my older brother who hates the plant and have them growing in a large bucket I converted into a pot. (It only took putting the plant into it to make it a pot LOL)

I was reading that u can get seeds and I'd like some guidance with this. I've never noticed after the flowers drop off where the seeds could be. Can someone give me some info as to where to look? I just cut the tops to keep them from getting leggy, dip them in root starter and stick them back into the pot but i'd be interested in trying my hand with the seeds. Thanks for any help

p.s. if anyone can share some white seeds or cuttings I'd love to have some :)