1916, Van Tubergen
( C. G. Van Tubergen
) Regeliocyclus; AR, Height and bloom season N/A. Color Class-S6M (medium yellow squalens bitone). I. korolkowii
X I. atropurpurea
. Van Tubergen 1916.
| From The Court Of Iris catalog, 1955: This name comes not from the Greek but from mediaeval Brittany. The opera 'Tristan and Isolda' was written around the romance which also involves King Mark of Cornwall. This is one of the more unusual colorings in this type---over a mahogany groundwork is spread a network of old gold. Early bloom. 18" $3.00.
| From Supplement To The Comprehensive Checklist of Aril and Arilbred Iris by Sharon McAllister, April 2000: ISOLDA AR (C. G. Van Tubergen, BRS). Sdlg #NIA.RC. Height and bloom season NIA. I. korolkowii var. venosa X I. atropurpurea. AIS Color Class: S6M (yellow squalens with bitone pattern). '76 CL: Yellow-toned blend, medium. Rainbow: "EE-16". Standards light buff, flushed dark crimson, impressively veined in mahogany. Falls golden buff, veined dark reddish mahagony, with large black-mahogany signal. Whole flower glitters as if sprinkled with gold dust." Vallette: "golden bronze, a larger and broader Charon." Van Tubergen,1916. Notes: Name approved; an RC in both systems; ASI '66 YB, p. 63, gives I. korolkowii var concolor as the pod parent. Ref: AIS '39, p. 286; ASI '76, p. 45-B; Vallette, p.171 .
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