HYB:Comparison of Time Zone and Clarence
- Subject: [iris-photos] HYB:Comparison of Time Zone and Clarence
- From: &* A* M* <n*@charter.net>
- Date: Wed, 1 Dec 2004 11:18:42 -0500
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There are five good photos of CLARENCE that are
brought up by a search of Iris-photos for "Clarence" --but none if the
search order is "photo 'Clarence'"---
In any event, the photos examined
include those posted by Sandra Barss, Gina Sideris, LaurieF, T.
Greaves and Lloyd Zurbrigg himself--a clump view.
The one with the strongest color contrast is that
from farthest north--Barss' photo. That may be consistent with
some research on possible anthocyanin pigment development in relation to
temperature, but has no bearing on the question of zonal vs.
luminata.
In each of the photos there is a fairly wide
zone of feathering between the white and the anthocyanin, but in only one is
there the slightest suggestion of pattern. On one photo only
is there a scattering of white dots in the solid area with no apparent
arrangement--possibly an artifact of the reproduction process.
In the standards, however, the presence of
anthocyanins, although faint, do show an effect suggestive of luminata.
The penetration of anthocyanin synthesis through the I(s) dominant amoena
factor is quite normal at lower dosage levels. In some amoena-plicatas the
plicata pattern is richly expressed in the fall, and weakly, but
definitely, in the standards. MONOLOGUE is an example of
this.
I say "suggestive" above since the anthocyanins in
the standards are very weakly expressed and only show in some of the photos,
probably of the most freshly opened blooms. In others the standards
appear completely white.
The zone of transition is like that of TIME ZONE,
but broader. I would have to come down on the side of amoena-zonal based
on this, as there is not the slightest suggestion of luminata light
vein, darker inter-vein patterning in the solid area.
Neil Mogensen z 7 western NC
mountains
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