Dr.Braem, Anthocyanins are often red pigments, but not all red pigments are anthocyanins. Anthocyanins are often expressed as red or violet, depending on the chemistry of the plant, and sometimes blue, such as in delphiniums. The problem I was demonstrating is that a plant may have red pigments without having anthocyanins. Such as a tomato, which is red due to lycopene, but is not an anthocyanin. This is just one of the hundreds of carotenoids which may produce red colors in plants.
This is only my academic understanding of plant pigments. We could ask big joe for clarification, but I suggest we save ourselves the heart-ache. And correct me if I am wrong, but the ICBN has no set definitions for designations such as "alba/album" etc., so your posit is not in stone but only a suggestion based upon rationality? ST Dr.> Steve Dr.> From: Steve Topletz <[EMAIL PROTECTED]>Subject: Dr.> Re: [OGD] Re: Orchids Digest, Vol 7, Issue 334 Dr.> To: "the OrchidGuide Digest (OGD)" Dr.> <Orchids@orchidguide.com>Message-ID: Dr.> <[EMAIL PROTECTED]>Content-Type: Dr.> text/plain; charset=us-ascii Dr.> I am not a taxonomist, but I can confirm it. Dr.> Further, I wouldn't suggest asking a taxonomist as the Dr.> opinions will be inconsistent. Dr.> Steve pleas don't confuse people. Anthocyanins are red Dr.> pigments. Ofcourse, if the flowers are normally green, or yellow, Dr.> there may not beany change in colour when Dr.> the anthocyanin pigments are missing. Dr.> There is no discussion about all this among taxonomists. Dr.> Those that saytha "alba" can also have flowers other than white Dr.> should re-read theirtext books and get a Latin dictionary. Dr.> ALBA = WHITE and nothing else, no matter what your Dr.> education,profession, religion, ethnic group is Dr.> Albino = per botanical definition (valid for all Dr.> taxonomists) islacking anthocyanin pigments. Dr.> If this is no longer correct, show me the textbook that says so. Dr.> Please, Please, remember that most people on the list are Dr.> not botanists... so don't claim that taxonomists are not agreeing Dr.> on the above. Itis not true. Dr.> If anyone says anything different of the above, he/she is Dr.> not ataxonomist and not a botanist, or slept through the Dr.> pertinent lectures. Dr.> Regards Dr.> Guido _______________________________________________ the OrchidGuide Digest (OGD) orchids@orchidguide.com http://orchidguide.com/mailman/listinfo/orchids_orchidguide.com
