Re: Re: Iris abicans

irischapman@netscape.net wrote:

>
>My understanding is that Albicans is a triploid(Simmott) and that triploid pollen is even less fertile then egg cells. The triploidy is apparently what restricts the fertility. I would think self pollination would be near impossible.
>
>Has anyone observed bees actually visiting albicans flowers?
>
>Chuck Chapman

According to both Simonet & Randolph it has 44 chromosomes.  There are a number of 40-chromosome and 48-chromosome species in the area that are good candidates for its parental species.  Or an unreduced gamete of one of the 24-chromosome species could have been involved.  Many amphidiploids are self-sterile [beyond the scope of this discussion] but prove fertile with other clones of the same type.  The catch, in this case, is that I. albicans has been vegetatively propagated for so long that there appears to be a very limited gene pool.

Sharon McAllister 


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