Tiny miniature member of the Stachyobium section Dendrobium. These are fragrant, and fairly easy to grow if you have good humidity and good airflow.
These like to stay moist in the summertime and grow best in medium to bright shade. The leaves mature in late summer and flower from the new growths. After they flower, they will lose all of the leaves and you should not water very much during this time.
Plants are very small, about 2.5" and produce dozens of flowers. We have a very limited number of plants mounted and established on cork