And if you look more you might even find that was called Anacheilium cochleatum in the past as well.
Sometimes old names were because two different people discovered and named the same orchid. Or they disagreed that they were the same species. Eventually that gets worked out.
Other times it was all "agreed," but then the taxonomists uncover a reason to change the name. Sometimes this is based on new knowledge or the structure of the flower of the plant, or, and this is becoming much more common, on an analysis of the the DNA.
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