Orchid Identification Help

[B in Japan]

Thanks everyone,
Your help has broadened my knowledge and I am thankful.
From bud to bloom was at the speed of sound. (Figure of speech) it only lasted that day and by evening it was shriveled up and gone. When I received the cutting it was in not the best of shape all the canes were cut back and now I have mounted them on driftwood and the life is back with new growth, roots and the one bloom. I don't have to be perfect on the name because I will never know for 100% sure. So, a thank you to everyone that helped.
RobS answer is the one I will go with.
Dendrobium Crumenatum (or a close relative)