Pondboy,
Most of us aren't very successful at producing seed, since most species do not self seed, and pollination is so very difficult. There are very few Utricularia experts here on this forum, mostly just plain old growers like you and me with a bunch of plants and a copy of Taylor IF they are lucky.
George and Sean have the advantage of having a natural pollinator do the pollination thing for them. I've tried stripping open the flower to expose the pollen and stigma, but without a dissecting microscope it is just about impossible, at least for these old eyes. Even on the occasion I was able to get to the pollen by dissecting a flower, I did not have successful pollination
. Other times I have used "fishing line, hope and prayer" techniques with minimal success. I welcome anyone who can suggest a reliable method of fertilizing these flowers. I sure want to find an answer. I feel like I am missing something
Seed should not be stored at all, it should be sent out asap if you are lucky enough to have it be produced I think. I can't answer how much: I only ever get a very little bit of seed from anything so I send all of it. Most of my attempts with seed I have gotten have shown poor germination relative to how much seed I sowed (when it germinated at all). George is lucky if he gets 1/2 of his seed to grow. I have bever been that fortunate in the 20 times or so that I have tried seed.
So far, the only seed I have gotten has been from U. subulata, U. lateriflora, U. claycifida, U. delicatula and U. pusilla. Possibly U. welwitschii but it was inviable even when I sowed it as soon as I harvested it.
It's too bad Utricularia don't behave as nicely as Drosera with their ready self pollination. Then Sean and George could have a chance to grow some of these plants, and share them with their mates.