Having a touch of color makes it an albescent type, rather than a true alba. I tried to google houlettianum with both alba and albescent, but could find no reference to either.
If the plant is strong and well established, I would suggest self-pollinating. In the next generation you might get some true albas (or not).
I think that there is a nursery in Vietnam, which can do flasking of the seed. If not, there are many labs and/or nurseries who would be interested in a seed pod.
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Kim (Fair Orchids)
Founder of SPCOP (Society to Prevention of Cruelty to Orchid People), with the goal of barring the taxonomists from tinkering with established genera!
I am neither a 'lumper' nor a 'splitter', but I refuse to re-write millions of labels.
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