plant collecting

[John La Duke]

Colleagues,

back to plants.

Some years ago, I recall a paper on how to determine if one should make a
plant collection from a population.  It might have been in Rhodora or Bull.
Torrey Bot Club. Someone had suggested a minimum number of individuals
should be present in a population before it was "safe" to make a
destructive plant collection(whole plant removal).  Anyone remember this OR
have other guidelines from anywhere that might serve in makeing these
decisions.  I usually work on weedy stuff, numbers are not ususally a
problem.  I am trying to advise a colleague.

John

John La Duke
Biology
University of North Dakota
Grand Forks, ND 58201

701 777 4678 office  please no voice mail as I do not check it often
701 777 2621  dept