[Cynthia, Prescott, AZ]

Well, that sure does look like it is pretty close to a self of a self, even if that SIB means crossed with another member of the same seed pod/cross. I understand that the reason people use greenpod culture so much, is that there is little or no contamination of the seed from the environment. If you have ever seen an electron microscope view of orchid seed, you would under stand the problem with contamination. The covering around the seeds is like a net. Things can get into the net, and sometimes the strilizing liquid they use does not manage to penetrate all the seed coverings, and there is a higher than normal rate of contamination with dry seed. This is from my reading, not my experience.