The Iris shown in your photo is not Blumohr
You might want to look at HUMOHR Ben Hager 1980 which is a strong possibility.The ASI have a very good Illustrated Checklist that you can view or download from their web site
Plumbago was also used in the description of White City the Historic British Dykes Medal winner .
Do Hope this helps
--- In email@example.com, "Donald Eaves" <donald@...> wrote:
> Marx, '49. Not sure though. Just what color is 'plumbago blue'? Also
> described B1L which is light blue (I think). This bloom is certainly not
> what I'd call light blue. It's very blue, but I'd say it tips slightly
> beyond medium blue toward dark blue. Nothing was mentioned about the white
> streaking either. It's random and variable, but is present throughout the
> falls and standards. If true this would be an OB- type AB. It was in loose
> bud last night and is new for me this year, so I cut the stalks and brought
> them inside to finish.
> Donald Eaves
> Texas Zone 7b, USA