I have several orchids without tags and want to figure out what species they belong to. They all have pseudobulbs so I narrowed it down to Cattleya or Oncidium. I've been searching the web for tips on how to differentiate the two but I can't find anything helpful enough to help. Can anyone tell me what to look for? Maybe pictures showing the specific differences would be helpful!? None of them are currently in bloom so I'd need to understand the difference in the pseudobulbs or the leaves.