Dendrobium bulbophylloides

Flower is 7/16" wide. I grow this cool, rather bright and moist. This is a seed grown plant.

 

I also grow two other clones that are now in the 56F night. I've just divided one and will try it in some different places. I bought the plant above already established. On the others, as I recall, it was very hard to get established, so I waited until the mount rotted before doing anything. The third one has a quite different habit and grows away from the mount. For whatever reason, I never seen to catch either of them in bloom, just with the wilted flowers.