Sure thing, Andy: "C3 physiology recorded directly in Spathoglottis, Arundina, Coelogyne, Oncidium.
CAM recorded directly in Aerangis, Aeranthes, Aerides, Arachnis, Aranda, Aranthera, Ascocentrum, Brassavola, Bulbophyllum, Cadetia, Calanthe, Cattleya, Caularthron, Chiloschista, Coelogyne, Cymbidium, Dendrobium, Dimerandra, Encyclia, Epidendrum, Eria, Flickingeria, Gussonia, Jumellea, Laelia, Lanium, Lissochilus, Luisia, Maxillaria, Microcoelia, Micropera, Mobilabium, Oberonia, Oeonia, Oncidium, Ornithidium, Paphiopedium, Phalaenaopsis, Pholidota, Plectrorrhiza, Pleurothallis, Polyradicion, Rhinerrhiza, Robiquetia, Saccolabiopsis, Saccolabium, Sarcochilus, Schoenorchis, Schomburgkia, Solenangis, Sophronitis, Taeniophyllum, Thrixspermum, Thunia, Trachoma, Trichoglottis, Vanda, Vanilla, Vanda. Anatomy non-C4 type (Habenaria, Spathoglottis, Vanda)." http://delta-intkey.com/angio/www/orchidac.htm Steve Topletz Andy> Jerry's observations add a lot more to the debate than Andy> some of the old regurgitations on this topic. Steve, are you Andy> sure that Cattleyas are CAM cycle plants?? I was not aware of Andy> this. Can you provide some references? I know that the genus is Andy> widely dispersed so there may be variations but this would Andy> necessitate me changing my cultural program, if correct Andy> Andy Easton _______________________________________________ the OrchidGuide Digest (OGD) orchids@orchidguide.com http://orchidguide.com/mailman/listinfo/orchids_orchidguide.com