The very dark seedling from (Silverado x Latin
Lady) ivery likely has an Umbrata spot type, even though with the very
dark color that may not be obvious. Silverado has a complex ancestry, one
wing of which is from the Schreiner blacks, so the anthocyanin intensifier
probably derived from *I. aphylla* in the remote foundation of the black's
pedigrees appears to be present in the seedling from your description.
This would make the Umbrata spot difficult to discern.
Latin Lady, judging both by the description in its
registration data and from the parentage from (Latin Lover X pink amoena et al.)
seedlings, is almost certainly one expressing the Umbrata spot, as does its
pod parent, Latin Lover.
This line stretches back through to WINE AND ROSES,
which, although not showing in the registration data, traces back both to Hall's
pinks and to crosses Hall made involving SHAH JEHAN and EXTRAVAGANZA,
according to information received from Keith Keppel which he obtained from
correspondence with Hall.
Those great historics definitely are examples of
the overlay pattern on the fall we have been calling "Umbrata" and "Umbrata
I believe that this should give the historic trail
of the dominant factor if it is, indeed, present. The way to tell whether
the Umbrata spot is present is to compare the underside and topside of the
fall. If the darker fall pattern is present on the upper surface,
especially if the typical corona of color that <does> match the reverse
side is also present, you have an expression of the Umbrata spot. That
corona may not be present at all, or it can vary quite a bit in width, but
usually is present and is one of the identifying conditons. I'm not aware
of any other genetic pattern that produces this except some plicata
I think it likely that the Umbrata spot and plicata
alleles can both be present and expressed, also, but that is another question
for another time.
Neil Mogensen z 7 western NC
Yahoo! Groups Links