Your paph is definitely P. emersonii, and well within the range of variation for that species. "hounglanae" is just a name that was applied to Vietnamese populations of emersonii. Many years ago, Jack Fowlie published an article in the Orchid Digest showing variations in emersonii flowers, each of which he labelled with varietal status. As far as I know, none of these variations are really considered true varieties. In recent years, the clones of emersonii that are available have become easier to bloom...even I can bloom it now! However, most clones are still disappointing in shape...and it is not a hardy or vigorous species. I have found that they tend to shut down and stop growing after bloom. Is yours fragrant? Not all clones are consistently fragrant, but when are, they are astounding...not at all what one would expect in a paph. Take care, Eric Muehlbauer in Queens NY, where that weather has been so mild that many plants are still outdoors...only hybrid paphs in bud now.......
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