Dear Andrea,

>Does anyone know of papers dealing with 15-N composition (natural
>abundance) of freshwater macrophytes? I haven't been able to find anything.
>Thanks!

You should try contacting Linda E. Graham at the Dept. of Botany,
University of Wisconsin-Madison, 132 Birge Hall, Madison Wisconsin
53706-1381

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1-608-262-1057

or Monique Feist and Ingeborg Soulie-Marsche at Laboratoire de
Paleobotanique, Universite des Sciences, Place Eugene Bataillon,
Montpellier Cedex 5, France

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33-67-14-32-88

They organized the "2nd international symposium on extant and fossil
charophytes" and as such may be able to put you in touch with the right
people.

Good luck,
Bill

William P. Patterson
Syracuse University
Department of Earth Sciences
204 Heroy Geology Laboratory
Syracuse NY 13244-1070

Tel:    315-443-3869
FAX:    315-443-3363
email:  [log in to unmask]