This Iris must be either a plicata or glaciata, as both its parents are plicatas. The description of an amethyst tint in the centre of the standards indicates that it is almost certainly what is known as a "ghost plicata", where the presence of sufficient anthocyanin inhibitor genes all but makes the plicata markings invisible.
Having just obtained this plant, I hope to flower it and confirm my theory with some test crosses.
This is an unusual pale plicata which can occur when the anthocyanin inhibitor is present with the plicata pattern. Identified as a plicata in the AIS Bulletin info on Iris Wiki and by hybridiser Chuck Chapman in a post discussing yellow plicatas on hort.net.
Like its parent 'Victoria Falls', 'Suky' definitely carries at least two plicata group alleles (as evidenced by some of its offspring being standard plicatas). Chuck Chapman has hypothesised that it is either 1 luminata allele + 3 glaciata or 2 luminata + 2 glaciata, along with several copies of the anthocyanin enhancement (Ae) gene and one of the anthocyanin inhibitor (I) gene.
This is an interesting plant genetically, as it definitely carries at least two plicata group alleles (as evidenced by some of its offspring being standard plicatas). It may be that this is an example of the 2 luminata + 2 glaciata genotype, but I am not aware of any crosses to prove this.
This may be a luminata-plicata, considering that the colour wash on the falls avoids the veins like typical luminatas, and there is good reason to suspect the presence of a luminata gene in its ancestry.
It is unclear from the photos on the Iris Wiki whether this is a special case of a luminata-plicata with 2 lu alleles, or a luminata-plicata combined with the anthocyanin enhancement gene, or simply a plicata/luminata carrier (as some of its progeny are luminata-plicatas). Test crosses would be required to determine this, or the genetic makeup of 'Victoria Falls' would need to be determined.
Although not registered as such, PATH TO HEAVEN has PBF.
However, the amount of PBF is small and appears to be highly variable. In a large pot with a great many small rhizomes, late October, some had the PBF and some did not. On at least some of the rhizomes with PBF, the PBF was a saturated and unmistakeable red violet.
The rhizomes were all very small, and it may be that on large(r) rhizomes, the PBF would only appear as a narrow band.
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