Rl. digbyana alba
There was a discussion awhile back as to whether an awarded (and very beautiful) Rhyncholaelia digbyana was truly an alba, showing bits of pigment in leaves (and in progeny)
This one, Rl. digbyana 'Fiddler's Green' doesn't have any awards (dorsal sepal always has a bit of a twist, segments are rather narrow), don't know about progeny it might have (since no awards, the cultivar name is unofficial) but I post it as one that, at least to all appearances, is truly alba. It grows outside, fairly bright (and other cultivars of the species, as well as several Rl. glauca) definitely have pink. But this one, not a trace of pink/red, on the leaves or back of flower. And I have had it for at least 5 years, maybe more and blooms every year. So I think safe to say, an example that really is alba.
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