Re: HYB: Wide cross (long sorry)

Chad Schroter wrote: 
Finally, in 1956 Lenz reported on two successful hybrids that had 
been raised between a diploid bearded iris and I. tectorum, and a 
second from I. douglasiana x I. sibirica 'Caesar's Brother'. "This is 
probably the third record of a hybrid being produced between a 
bearded and a non-bearded iris. Dykes in 1910 reported a hybrid which 
he had obtained from a cross between the dwarf form of I. pallida 
that Sir Michael Foster had obtained from Monte Loppio (later called 
I. cengialti var. loppio) and I. tectorum." It was named 'Lop-tec'. 
The second cross, between I. tectorum and the bearded 'Edina', was 
recorded in 1928 by F. Denis, a French horticulturist. This 'Pal-tec' 
is pictured in the article. "Hybrids between such widely separated 
taxa are usually sterile and since 1928 when 'Pal-tec' was registered 
to the present time no seedlings have been obtained from this 
variety. Pollen from the 'Ariel' x tectorum cross was treated with a 
lacto-phenol-aniline blue solution and when examined later a number 
of pollen grains were found to be stained. This was surprising 
considering the extreme differences between the parental species. 
Plans were made to attempt backcrosses with the parental plants, but 
unfortunately this hybrid and its sibling succumbed during the 
extreme heat wave in southern California in September, 1955."  But at 
least we know that a hybrid of a TB iris with I. tectorum *may* be at 
least partially fertile, which is reason enough to continue making 
similar crosses.

Chad,
I can add another bearded by non-bearded cross, which I have growing 
as we speak. It's tectorum x bearded, but I'm not sure which 
direction the cross took place and I'm not sure which bearded iris 
was involved. I had been attempting crosses in both directions using 
various diploid beardeds (Floridor, Consummation, pallida, variegata, 
etc.) with both the white and blue forms of tectorum. All of the 
seedlings I had grown up, were obvious products of one parental type 
or the other (from same type pollen -- I don't cover blooms usually 
and also sometimes the self-pollen is beginning to be released when I 
remove the anthers). I had begun to lose hope, when this seedling 
sprouted up from discarded potting soil. You can see pictures in the 
Photos section. Just use the link along the lefthand side navigation 
bar (Where the Home, Messages, Chat, etc. links are) The plant is 
very vigorous and I'm hoping to get offspring from it or a chromosome 
doubled version of it (yet to be). Hope that you'll join in on the 
fun, and try to break down this barrier too. Tom  



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