This is a species Brassia that is comparatively compact rather then the 18 inch long flowers.  As you can see it is a real nice one though.  We have lots of seedling size divisions of these so let us know if you would like some.

Brassia's are grown like Oncidium's and are very easy to grow and bloom.  They can be kept under a Oak tree until the temps go below 50 degrees then we recommend they be brought indoors.