"Larry" wrote in
:

Den Hirota White x Den Classic Gem.

Den Hirota White x Den Classic Gem is a cane type Dendrobium and I think
the others you have are also cane types as the BORG (Big Orange Retial
Giant) doesnt sell Nobile types.
For more informations on Dendrobiums go here

http://www.clanorchids.com/culture/dencult.htm

Grow well and bloom magnificently
dusty