> I very, very seldom pretreat my pepper seeds. But a good thing to do if germination percentages from untreated seeds are low. > I think C. cardenasii will cross in at least one direction with pubescens > and or eximium, but would have to look up to be sure. According to the literature I've seen, all three should cross in all directions, but I don't know from personal experience (and who knows, maybe it depends on the particular accessions, anyway, just like self-infertility does, i.e. negative results tell little, only positive results are certain). --- Brent