Here is a link to collected wild
flower seeds.
http://www.thegardenhelper.com/wildseeds.htmlI do not know if your are talking
flower, or vegetables or whatever kinds of
seeds. All need a drying time before any kind of storage because if they are damp they will mold or even sprout before you are ready to plant.
seeds for me ( I do mostly
flowers) have been a matter of trial and error over the years. Someone gave me a brown paper bag of dried
flower heads of zinnias once. I crumbled and sprinkled the whole heads over my prepared bed. I had millions of zinnias. When I actually bought a packet and studied the
seeds, I saw that they are arrowhead shaped and was able to just harvest
seeds after that. Things like marigolds are easy. When the
flowers are dry just grasp the petals and pull. The little black and white stick-looking things at the base are the
seeds. It all varies from plant to plant.