Guido at Guido at
Thu Jan 12 18:34:43 CST 2006

Dear Ralf,

> I hope this answer your question.

A good example indeed. Thanks.

> The fragment is no longer part of the holotype specimen because
> it is not permanently conserved in the same herbarium as the holotype.
> Such fragments have the status of a duplicate, i.e. an isotype.

In that case a fragment ending in A (Arnold Arboretum Herbarium) should be
called an isotype when the holotype remained in GH (Gray Herbarium). Now that
both herbaria are integrated again into the Harvard University Herbaria, both
parts may be considered as the holotype (parts) again. It is strange anyway that
the status of a type specimen may change depending on the building where it is

Guido Mathieu
Peperomia Research Group
Department of Biology
Ghent University
K.L. Ledeganckstraat 35,
B-9000 Gent. Belgium

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