Botanical Code Article 71

[Bentivenga, Stephen P]

Hello Taxacomers -

I am in the process of writing a monograph of the genus Gigaspora, and
I have run into an interesting problem.  I plan to reject one species
on the basis that it was described from heavily parasitized material
which was altered to the point that taxonomic characters were not
observable.

Older versions of the International Code of Botanical Nomenclature
had an article to deal with this - Article 71 which allowed rejection
of a name if it was based on a "monstrosity".  In 1975, the Leningrad
Conress deleted this article.

Does anyone know of another article or recommendation which deals with
this issue?  Any suggestions would be appreciated.

Steve Bentivenga
West Virginia University