I was given this (if I remember correctly) as Maxillaria tenuifolia 'Mexico', which, vegitatively, it does resemble . . . except that it creeps instead of climbing. Now that it's bloomed, I know it's something else – but what?
Here we see a (mostly) full-plant pic, with a top-down view of the flower. It's blooming on an immature growth, with one bud still tucked in there. Click for a huge pic, in which you can make out the detail of the top view of the flower. It looks pretty neat from the top.
Here is a front view of the bloom. The sunset light makes the colour a little vague. It really is a pale yellow-green, with a patch of velvet-textured yellow on the lip, and three maroon stripes in the throat.
Any help is appreciated! Hope you enjoy the pics too.