Yeah, if you connected the tips of all the flower parts it's darn near a perfect circle. I love the double keeled callus in the lip and the two "horns" on the lip (hence the name).
Becca, They get pretty big. They are ant hosts like the Myrmecophylia (or however it's spelled). The old leafless p-bulbs on this one are as tall as 10-14 inches. The baby I sent you is from Troy Meyers, this one is from Andy's. Maybe they'll be a bit different?
Nenella, You may have heard of it, or it's hybrids. It's one of those with an identity crisis. Used to Be Diacrum bicronutum, and was used to make many pastel Dialaelia hybrids and eventually - Iwangara Apple Blossom.