I've had this first one for the past 2 years and it blooms quite regularly. The second photo is of a group that I mounted straight out of a flask last year, that I picked up at WOC. I was shocked to see one actually blooming already...
How strange Laura....2 not typically seen orchids that you posted...the Dend anceps and now this one, another one that I just, 2 days ago received (with a spike!). I put mine in a tree fern basket with a little moss. Was told to keep in dappled light, heavy watering when growing...is this how you're growing it? Yours looks great!