Oncidium? Expert help with identification

[Edwin Reffell]

Is there any Oncidium, Miltonia or Miltoniopsis expert who can advise me as to what this orchid is? On the sticker it says "Orchid (no species given), half shade in the summer, sun in the winter, 18-24 C both periods, water every 5-7 days in summer, every 7-10 days in winter, fertilize every 30 days in summer, every 60 days in winter." I do not know what the flower looks like as I found this orchid tossed out on to a lawn on the way home from a walk. My apologies for complete lack of photography skill. I am using a webcam to take them and hope they are sufficient. You may have seen this identification request before in another forum where I was told it could be an Oncidium, Miltonia or Miltoniopsis or some hybrid of those species.