We have one laycockii that's for sale...and some smallish serpentilingua. Our labukensis blooms nicely and is about 2-1/2 feet long---I'm told this is rather small. It sets great seed pods without embryos.
Anyone heard of a source for denevei???
Here's our "large" serpentilingua---they're beautiful and bloom at a much smaller size than the others.
I agree with Rick Dwayne has them at Dowery Orchids. I have one from him and my longest leaf is five feet long.There six leaves altogether. It has grown well for me.I have had it going on two years now I hope to bloom it soon.Good luck