what are parents of Den. jan orenstein?

[jason woodrue]

Hi,

Just picked up (for free) a division of Dendrobium jan orenstein. What are the parent plants of this hybrid?

In fact i am not sure it is "jan orenstein" - could be jon orenstein?
It is even possible that it is a species: Den. aphyllum and that it is a species bred by jan orenstein.

i think it is a hybrid however, something like Den. lodgessii x Den. aphyllum - but i dont really know???

thanks
mike smith