Wayne wrote to me asking if the colors in the images of the hybrid Japanese morning glories were accurate. I assured him that they were, and then went on to describe the watered-silk pattern of merging and blending colors seen in some of these amazing blossoms. As I was talking, I was about to use the word moiré, but realized that I wasn’t sure how to pronounce it. This is the word which precisely describes the watered-silk pattern.
As it turns out, the word is pronounced as both a single syllable word and a two syllable word. Evidently there is no generally recognized difference in meaning, although according to the wikipedia entry on this word the single syllable form is prevalent among those discussing fabrics, and the two syllable form (at least two syllables as pronounced in English) is prevalent in other contexts (such as this one, where I’m discussing color pattern).
Although the word came into English from French, evidently it is not a French word but rather Arabic (and some say ultimately from the Latin marmoreus, marble-like). And just as interesting, the word mohair apparently shares the same origin.
Believe it or not, the two images shown above are of the same blossom. The upper one was taken early in the morning, the lower one late in the afternoon on a rainy day. Evidently the blue pigments are not as stable as the red ones. The image of the blossom in its purple/blue phase was taken in natural light, the red phase was photographed under incandescent light with the camera light meter adjusted for that.
When the first flowers from this lot of seed began to bloom, I wasn't sure I liked them. But they have grown on me, and I can see them becoming favorites.