Holotype fragment (botany)

Richard Pyle deepreef at BISHOPMUSEUM.ORG
Fri Jan 13 09:54:59 CST 2006

Hi Ralf,

> 1) A specimen can be made up of several individuals, from a
> single gathering
> (still today).
> 8.2. For the purpose of typification a specimen is a gathering,
> or part of a
> gathering, of a single species or infraspecific taxon made at one time,
> disregarding admixtures (see Art. 9.12). It may consist of a single plant,
> parts of one or several plants, or of multiple small plants. A specimen is
> usually mounted on a single herbarium sheet or in an equivalent
> preparation,
> such as a box, packet, jar or microscope slide.

The "several plants" and "multiple small plants" options are logically
analagous to zoological syntypes. In zoology, if the syntype series is later
deemed to consist of (or may potentially consist of) more than one taxon, a
lectotype may be designated.  I assume that lectotypification works the same
way in botany as it does in zoology?

> 2) But also: A type can be multiple preparation (On different sheets or
> sheets and bottle etc) if labelled correctly.
> 8.3. A specimen may be mounted as more than one preparation, as
> long as the
> parts are clearly labelled as being part of that same specimen. Multiple
> preparations from a single gathering which are not clearly
> labelled as being
> part of a single specimen are duplicates, irrespective of whether
> the source
> was one plant or more than one (but see Art. 8.5).
> Ex. 3. The holotype specimen of Johannesteijsmannia magnifica J. Dransf.,
> Dransfield 862 (K), consists of a leaf mounted on five herbarium
> sheets, an
> inflorescence and infructescence in a box, and liquid-preserved
> material in
> a bottle.

So it all boils down to labelling, then? (the distinction between a
multiple-preparation type, vs. type+isotypes)


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