Selfing????

[orchidman77]

So I've seen a lot of famous orchids "selfed" and the seedlings sold. I'm guessing that this means that the plant is crossed with itself with 2 flowers from the same plant.

But how is this supposed to work? Wouldn't the resulting seeds be sterile? And even if they aren't, aren't there some problems with crossing a plant with itself???

Thanks,
David