Dendrobium agathodaemonis

Dendrobium agathodaemonis is considered by some to be a synonym of Dendrobium cuthbertsonii.  To me, however, there are obvious differences, though they may not warrant species status.  Even though the flowers are of the same shape and size as Dendrobium cuthbertsonii, they lack the dark markings on the lip and have growths that are much thinner.  Both of these features are obvious in the following photos.  Like its near relative it is a prolific bloomer when grown well and has flowers that last many months.