I grew them in San Diego and they (papillo and kameriana) grew very well. For whatever reason they won't grow here at my new place. Last year I had over 450 orchids but sold most of them due to a planned move which then never came about. So now I have around 50 or so. Psycopsis don't like to be repotted unless necessary. They seem to grow best in a fast draining media and some have reported that they produce better flowers next season if a low N high K fertilizer is used the last few months before they rest. I've seen them mounted on cork plaques. I know mine in SD didn't do well if I kept them too wet (I lost most of them in 1992 during the El Nino that year. I couldn't get them to dry out and they rotted). During the winter I let them get dry before watering them at all. Then I watered sparingly. Papillo I know can have multiple spikes. To tell the difference between the two (papillo and kameriana) I was told that the papillo has a flattened flower stem and the kam has a round one. I never looked so can't confirm. I might try them again mounted on a rescue board. Hope this helps.
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