This photo, taken from an orchid forum so it's not authoritative, is nonetheless interesting. Note that the flower and lip look very much like ours, but the difference is that the raised central "keels" on the lip do not extend past the flat part of the blade. It appears that the keels are very similar to ours, but the blade extends further. Alternatively, the blade on ours appears to be truncated so that it doesn't completely surround the raised keels. I'd be very surprised if these two would be considered different species. Whether or not they are Panisea albiflora we still need to decide.