Here are the image for the three paph which are currently in bloom
1 & 2 Paph bellatulum from Burma
3 & 4 Paph wenshanese From china (wenshan area)
5 & 6 Paph Concolour from China (wenshan area)
The leafs are very much typical o the brach family group, however wenshanese leaf do have dark colour and less silver marking. concolour do display similar leaf colour with those from Thailand. However i am just a amature.
Actually, the correct spelling is wenshanense, if you are taking notes.
In Braem and Chiron's Paphiopedilum (p. 22) they state that they tried to clarify the RHS's position on P. wenshanense and were told that the name applies to the F1 generation of bellatulum x concolor, and subsequent generations should be called P. Conco-bellatulum. They interpret this as meaning that P. wenshanense x P. wenshanense = P. Conco-bellatulum!
This seems to imply that there would never be any properly labeled line-bred wenshanense.
Braem and Chiron also note that Paph Conco-bellatulum plants have been awarded as P. concolor, so individual plants can probably be passed off as either species.
At least we can agree that they are Brachys...Or CAN we?