subsequent typification

Thomas G. Lammers lammers at FMPPR.FMNH.ORG
Wed May 13 06:42:00 CDT 1998

At 10:45 AM 05-13-98 MET-1METDST, METZING DETLEV wrote:
>The ICBN allows the subsequent typification by designating a lecto-
>or neotype. Is it allowed to typify a a name (not typified before) by
>choosing a specimen, which is already a type of another name?

Yes.  Syst. Bot. 13: 498 (1988).  The only sheet of original material of
Cyanea arborescens H. Mann (1867) that could be located was the holotype of
Clermontia mannii H. St. John (1983), making those two names homotypic.
It's not ideal, but there was no alternative.  In this case, nomenclatural
stability was preserved, as the species had long been called Clermontia
arborescens (H. Mann) Hillebr. (1888), and as soon as C. mannii was
described, it was realized that it was conspecific.

Thomas G. Lammers

Classification, Nomenclature, Phylogeny and Biogeography
of the Campanulaceae, s. lat.

Department of Botany
Field Museum of Natural History
Roosevelt Road at Lake Shore Drive
Chicago, Illinois 60605-2496 USA

e-mail:    tlammers at
office:          312-922-9410 ext. 317 (voice-mail)
home:     630-759-4280
fax:                312-427-2530


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