People tell me that some stoneis grow fine, and others barely grow at all. I saw a bunch of stonei latifolium (before they were called platyphyllum) at Parkside a few years back, and they looked very vigorous and healthy. But then again, most of their paphs look that way. I still think platy is a better grower than stonei though, overall. Good sources tell me that platy, or at least the famous clone 'Ruth Kennedy', abhors light. And my Fumimasa is a light green even though I keep it next to my mottled-leaf paphs.
There's an interesting story behind the naming of wossner sandplat (fumimasa sugiyama). The person who first created that cross (not franz glanz, surprisingly enough) attempted to register a name with the RHS, only to be told that they did not accept platyphyllum as a legitimate species. Less than 3 months later, Sir Phillip Cribb of Worcestershire was somehow convinced by the good people at Orchids Ltd. that platyphyllum was a legitimate species, and the RHS accepted their name of Fumimasa Sugiyama, *originator unknown*, and they specifically advertised the name as a "final decision, no changes permitted". God save the queen, but I couldn't care less about the RHS.
