paphjoint said:
Dendrobium platycaulon is a different specie look here :
http://www.orchidspecies.com/denplatycaulon.htm
Interesting. My source is a book:
Dendrobium and its Relatives by Bill Lavarack, Wayne Harris & Geoff Stocker, Timber Press, 2000.
I notice that Jay says: "This species and D platigastrium are cited as synonyms but I have kept them separate at this time, please refer to the other species for more information."
In my reference, it says about platygastrium that it is probably synonymous with D. lamprocaulon & D. discocaulon. "It is very similar to D. lamellatum...but differs in the mid-lobe of the lip, which is short and rounded in D. lamellatum and longer and rectangular or pointed in D. platygastrium. It also says that the pseudobulbs are flattenened, erect, but become pendulous with age. I've not noticed that with platycaulon (lamellatum) yet.
I guess Paphs and Phrags aren't the only ones with ID problems.