[Taxacom] Authorities for trinomials

Richard Zander Richard.Zander at mobot.org
Thu Aug 24 17:18:51 CDT 2006

Yes, the binomial Aus bus published last is invalid. It remains a
homonym, however, and placing authority names after the first two words
of a trinomial is commonly done to distinguish WHICH binomial the
infraspecies refers to. 

I assert this is superfluous, because not a nomenclatural but a
taxonomic problem.

Homonyms may not be names (Art. 6.3) but may be conserved (14.9) over
earlier homonyms and thus become a name. Note that Art. 53.1 seems to
contradict 6.3, such that we have illegitimate names that are not names.
Why did I start this thread? Nomenclature is not necessarily logical but
is law-based, and the arguments are twisty-turny . . . 

-----Original Message-----
From: taxacom-bounces at mailman.nhm.ku.edu
[mailto:taxacom-bounces at mailman.nhm.ku.edu] On Behalf Of Paul van
Sent: Thursday, August 24, 2006 4:38 PM
To: taxacom
Subject: Re: [Taxacom] Authorities for trinomials

From: "Richard Zander" <Richard.Zander at mobot.org>
Sent: Thursday, August 24, 2006 11:11 PM

The examples were heterotypic.

Aus bus var. bus Smith 1820 and
Aus bus var. bus Jones 1821 are contrived as heterotypic homonyms.

Well, this can not be. Following Art 27.1 (given force by Art 32.1.b)
heterotypic synonyms are not validly published. Thus, they are not names
the sense of the ICBN. There is only one Aus bus var. bus (no author)
* * *

Richard H. Zander
Missouri Botanical Garden
PO Box 299
St. Louis, MO 63166-0299 USA
richard.zander at mobot.org
Web sites: http://www.mobot.org/plantscience/resbot/
and http://www.mobot.org/plantscience/bfna/bfnamenu.htm
For FedEx and UPS use:
Missouri Botanical Garden
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