I need help on how to identify an Aerides Odorata var Calayana alba VS. an Aerides Quinquivulnera var. farmerii (also called Aerides Farmerii)?
Both are albas (pure white) and they look very similar.
I ask because I got an alba that came with my calayanas so I assume it might be an Aerides Odorata calayana alba and also another alba that the vendor told me was a farmerii. I took a close look at both plants when they were in bloom last month and they look pretty much the same to me inside and out. Although the farmerii that the vendor gave me had blooms that appeared much bigger and whiter - so I am doubtful and getting confused.
I have a copy of Jim Cootes book but it doesn't seem to help in identifying since there is no description for the Aerides calayana alba.
Thanks a zillion for any assistance on this.