Re: HYB: blue ground/pattern

Neil (others), if I understand the plicata pattern in TBs/BBs, in order
for the blue/purple plicata lines/dots to be on the rims of the falls,
those same pigments would always be inhibited from forming in the center
of the falls.  So it <should> be impossible to have a blue ground
plicata.

So.... are there bearded species that have ever produced a similar
pattern but with the entire fall colored blue/lavender with the veins
darker only at the rim?  In other words, without all of the blue pigment
in the center of the fall inhibited?

Or, are there plastid pigments that every look blue or violet that could
give a blue ground?

Or are there other pigments that are blue/violet looking that are
independent from the anthocyanin pigments affected by plicata genes that
could therefore be present and give a blue ground?

On page 57 of the 2002 Schreiner catalog, there is a photo of RIVER HAWK
(Plough 1979).  In the photo, the 'silvery lavender' standards have dark
veins around the edges making the standards look like a blue ground
plicata.  Does it really look like that?  There is no mention of darker
veining in the description.

RIVER HAWK  (G. Plough, R. 1978). Sdlg. 73-63-7. TB, 34" (86 cm), E-L.
    "S. flax blue (642/3); F. between royal purple (834) and victoria
violet (738), slightly lighter blended edge;
    wistaria blue beard. Rain Shadow X Tropical Night. Eden Road 1979."

--
Linda Mann east Tennessee USA zone 7/8
East Tennessee Iris Society <http://www.korrnet.org/etis>
American Iris Society web site <http://www.irises.org>
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