RC ( C. G. Van Tubergen
). AR. Standards blue violet; Falls narrow, lighter base, veined darker; dark signal. I. korolkowii
var. Leichtliniana X I. paradoxa
. Van Tubergen, before 1907.
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| From Krelage bulb catalog, 1916: SIRONA - comparatively small but choice flower, short falls with dark blotch on greyish veined ground, standards deep lilac violet. $.25.
| From Walter Marx Gardens catalog 1955: SIRONA. Each 1.00. A little jewel of u belevable brilliance and beauty. Standards are brightred purple, falls are white flushed pink and sharply veined deepest red violet. Conspicuous black signal patch. The small falls are round and extremely flaring. 12 inches.
| From Supplement To The Comprehensive Checklist of Aril and Arilbred Iris by Sharon McAllister, April 2000: SIRONA AR (C. G. Van Tubergen, BRS). Sdlg # NIA. RC. Height and bloom season NIA. I.korolkowii var. Leichtliniana X I. paradoxa. AIS Color Class: S9M (red squalens with bitone pattern). '76 CL: S blue-violet; F narrow, lighter base, veined darker; dark signal. Rainbow: "Standards deep wine. Falls white, flushed pink, with sharp black veins radiating out from the black signal occupying nearly half of each fall. Falls round, orizontally flaring." Valette: "deep lilac S. veined darker; F. lilac white, veined deep lilac-brown; flaring short, stubby falls, almost hidden by a black signal patch." Van Tubergen, before 1907. Notes: Name approved; counted as a 21-chromosome diploid, an RC in both systems; this is the pedigree from the '39 AIS CL, which the '76 committee accepted; ASI '62 YB, p. 68, gives I. lortetii X (I. stolonifera leichtlinii x (I. paradoxa. x I. iberica)); ASI '66 YB, p. 63, gives (I lortetii x Leichtliniana) x (I paradoxa. x I iberica). Ref: AIS '39, p. 501; ASI '76, p. 78.
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