He was pulling petals from 'Lynn Anderson', preparing the bloom for pollination, when he noticed the striped petals. The stripes, as well as the rather loose form, were similar to 'Scentimental' growing beside the LA branch with the unusual bloom.
Could there be a causal relationship?
I immediately thought of a similar case that happened in my garden, also in the late '90s. I had Austin's 'Bredon' growing in a container immediately beside RICA "Sombreuil" (Colonial White). During a period of cool, cloudy weather, the plants produced blooms (one each) that were so remarkably similar that I could not distinguish them. The blooms were flat, and of a salmon pink color a couple of shades deeper than 'New Dawn'. Neither plant ever did it again.
Then there is a story from Cochet (translated and reprinted by J. H. Nicolas) regarding the origin of the Carnation Rose.
http://bulbnrose.x10.mx/Roses/breeding/ ... gical.htmlRose Oeillet de Saint Arquey (Bengal) (Carnation Rose)
Translated from Revue Horticole, September 16, 1928
The carnation rose of Saint Arquey was found in 1912 at the Chateau of the Abbey of Saint Nicolas-aux-bois, near Saint Gobain (Aisne) belonging to M. Faure.
M. Vilfroy, then head gardener of the domaisne made in 1911 some cuttings of a horticultural variety of Rosa Chinensis (Jacquin) of which he did not retain the name.
These cuttings were placed in a cold frame containing also Carnation cuttings.
In 1912, Mme. Faure and M. Vilfroy noticed with surprise that by some strange coincidence several of the rose cuttings were bearing roses resembling exactly carnation blooms!
These cuttings were carefully preserved, the owners asked for my opinion as to the value of their new rose, and I declared it extremely interesting because of its absolutely unique form and coloring, nothing like it existing to my knowledge in genus Rosa.
Mme. Faure gave me some branches of her new rose with the mission of putting it in commerce after having fixed by budding and severe selection, that curious teratologic variation. She gave it the name of "Rose Oeillet de Saint Arquey", the Abbey of Saint Nicolas-aux-Bois having formerly been under the invocation of Saint Arquey.
Since 1913, that is for 15 years, we have, Mme. Cochet and I, selected and budded each year so as to accentuate and definitely fix the characters that distinguished it from its forbears. No reversion has occurred for several years. "Oeillet de Saint Arquey" makes a spreading bush, with thin, intercrossed branches, reddish purple when young and green with ripe, with few thorns.
Nicolas also related another tale:
It is a well-known fact that the wine of the western region of France (Province of Anjou) is identified by and sought for its aroma ("Bouquet") of strawberry. The natives attribute it to the century-old custom of cultivating strawberries between the rows of vines, claiming that both blooming at the same season, the pollen of one influences the other. Originally, the strawberries were grown only to get an additional revenue from the land, but the main object now is to impart that strawberry fragrance ("Le bouquet de fraise") so much appreciated by gourmets. Although this inter-influence of pollens of widely different genera is considered impossible by scientists, it is nevertheless recognized that when weather or other conditions cause an abnormal interval between the blooming of the two genera, the wine lacks the strawberry fragrance and is not considered of "vintage" quality.