Some people consider C. aurea a separate species (see Withner), and I am in that camp, myself. C. aurea breeds very differently from C. dowiana. For starters, C. aurea is recessive for overall flower colour but more dominant for lip colour and venation. C. dowiana always affects the colour of the sepals and petals of a hybrid. In some cases, it intensifies red and purple tones, and sometimes muddies up the colour of lavendars and pinks. When bred with whites, the yellow comes through. C. aurea comes from Columbia and C. dowiana from Costa Rica. In all likelyhood, we are actually looking at two species who have very recently (geologically speaking) split from each other.
As for the plant in question, yes that is a *very* nice lip. C. aurea is known for having more extensive and stunning venation on the outer lip than the C. dowiana, which is known for a rich, velvety red color and golden veins inside the lip.
Both plants require a bit of neglect over winter and plenty of light to bloom their best. Congrats on blooming a relatively finicky species so well!
-Cj
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