I wouldn't get too excited about the lip shape/trichomes, color, etc. on these P. tetraspis plants. P. speciosa simply doesn't exist any more as a living plant and the plants from Sumatra have a much wider range of characteristics than were recorded for P. speciosa when it was extant so the simple diagrams and early description as recorded by Sweet and copied by "everyone", are pretty worthless in trying to analyze different cvs or clones of Sumatran P. tetraspis.
If you spent any time in the Nicobar and Andaman Islands you would see why it is so "academic" to discuss P. speciosa and its relationship to modern cvs of P. tetraspis now widely in culture.
Dr. Stock, thank you very much for your comment. I was hoping to provoke a reply from you!
The illustrations of Sweet and description of Christenson left me puzzled looking at my 'C1', that is why I asked.
Anyway, the 'C1' whatever it may be - genuine wild collected plant, spontaneous mutation or even a little fun (and profit) someone had, introducing a clever done hybrid as a tetraspis/ and especially speciosa - for me it is a very special, surprising and beautiful plant.
It is also somewhat chilling to note, that to none of these precious plants from the Andaman/Nicobar islands survived, neither in culture nor in their habitat (because it was destroyed).
Sad and shameful.
thank you very much for the work with all these photographs!
These close up's are really difficult to make and I am only hoping, you don't mind my question now.
Anyway, the second plant's colour is very gorgeous and I simply love it!
I wish you good luck with these nice plants!
Here is a close up of my C1.