Looks like a brachy onto one of the green/yellowish parvis. From the way you phrased your question, I'm guessing the tag says emersonii by something and you don't think emersonii is a parent. Right? What's the natural spread?
hmm... the staminoidal shield colour makes me think there is malipoense in there. the short (at least from what i can see in the picture) stem makes me think bellatulum. the colour could be armeniacum or concolor.
so, it could be conco-bellatulum x malipoense = Christiana richards,
Roy -- Mint Chocolate is one I wondered about. But here's my Mint Chocolate for comparison: (Note the staminode -- and the mis-named is definitely yellow, not green as is MC)
Dot, after looking at your pic, I did a websearch. The Mint Choc's I found, 2 had the same staminode as the one in the pic. They also, had the fine spotting & yellowish. Not to say this is correct, just my findings.