I just now went back through the comments and one thing that was spoken by Clement causes me to think that it was not in reference to a different or earlier work concerning rigidula. That being this was spoken in reference to her 1998 paper on rigidula. A pertinent comment was that their earlier work caused them to take additional precautions. That earlier work was a very similar account appearing in 1997 for Acacia berlandieri.
Its worth actually lining up Clement's comments with the bits actually appearing in those papers.
There is a surprising number of conflicts with the data stream that can be spotted.
I'd appreciate learning about any element of this where I may be in error. Especially any account from Clement in which her team did NOT report N-Me-PEA.
Thanks in advance!

Yeah I got no further info, I misunderstood you, thinking you were talking about the amphetamine, not the N-Me-PEA issue.

In any case I'd be interested in whatever you find out about this.

Thanks.
I'm in the process of creating an online entry for the two species detailing the published reports and the unresolved data conflicts.


In trying to locate more information today I became aware that I am missing several references. If anyone has access to any of these I'd love to be connected with copies.

Camp BJ; Lyman CM (1957) Southwestern Veterinarian, 1: 133-134, The toxic agent isolated from Acacia berlandieri, N-methyl beta-phenylethylamine.  

Enzman, F. (1968 ) Fresenius Journal of Analytical Chemistry, 237 (6): 440-441, Über die Isolierung und Identifizierung von drei weiteren Alkaloiden aus Acacia berlandieri (Guagillo).

Forbes, TDA et al. (1991) PR (Texas Agricultural Experiment Station) PR / PR - Tex. Agric. Exp. Sta. Oct 1991. (4875) p. 22-25, Seasonal production of phenolic amines by Acacia berlandieri. (Forbes, T.D.A., Pemberton, I.J., Smith, G.R., Hensarling, C.M., & Tolleson, D.G.)

Edit added: NOW HAVE IN-HAND Forbes, TDA et al (1995) Journal of arid environments, 30 (4): 403-415, Seasonal variation of two phenolic amines in Acacia berlandieri. (Forbes, TDA, Pemberton, I.J., Smith, G.R., Hensarling, C.M.)

Pawar, RS, E Grundel, E Mazzola, M Eason, AJ Krynitsky, JI Rader (2010) Planta Medica, 76 (5): 54, Phytochemical Investigation of Acacia rigidula Leaf. 

Edit added: NOW HAVE IN-HAND Pemberton, I J; Smith, G R; Forbes, T D; Hensarling, C M (1991) Journal of animal science, 71(2):467-470. Technical note: an improved method for extraction and quantification of toxic phenethylamines from Acacia berlandieri.  

This is the best I could do with the information I currently have in hand.
Within the next two months I should be able to track down the remaining titles and make a more comprehensive updating to this entry.
I hope this is of some use as it stands despite perhaps raising as many questions as it answers.

http://sacredcacti.com/wp/blog/acacia/
It also links to a description page for both species and a page of illustrations that are now at troutsnotes.com.

Another comment to follow up on 3 comments Dr. Forbes made to Fractalicious.

That concerns the idea amphetamines could have showed up as artifacts from ephedrine being shot into the mass spec. Surely the plant would have to contain ephedrine in order for that claim to be meaningful.

On expenses of research. For someone to confirm their results would only require the cost of an independent gc-ms. That cost $200 around a year ago.

Also on the comment that Clement died and work was published posthumously, she was actually very easy to locate presently still employed as a professor teaching organic chemistry in Texas. I think it required no more than around 3 minutes to locate her present location, address and contact data once I started a search online. She has both written and cowritten chemistry textbooks since that time so is still creating published literature.

I doubt Forbes is deliberately lying or anything like that but I also don't think he was very closely connected to this side of their joint research or would not be saying that. A subtle point that might be missed is that both professors were employed at different branches of A&M when collaborating on this work. They probably each had their own subset of the project?

Normally digging into a subject starts finding answers at some point. The deeper I go with this one the more questions arise and I have not yet reached a point of real answers. Unless I decide to let Occam's razor choose my path. Which is probably the most sensible use of my time.


Should anyone want leaf and/or bark samples of A. rigidula and A. berlandieri for an independent analysis it would be a simple matter to collect those in March when next doing field work in South Texas.

After a month of efforts and trouble tickets, Arvixe has finally fixed my website problems and eliminated the need for a redirect involving the main page. The URL sacredcacti.com finally works.
The solution changed all internal URLs so the links I posted above changed to
http://sacredcacti.com/blog/acacia/

Not sure if still needed but

Awesome, thanks for that!