DIVISION II. RULES AND RECOMMENDATIONS
CHAPTER V. REJECTION OF NAMES
Article 57
57.1. A name that has been widely and persistently used for a taxon or taxa not including its type is not to be used in a sense that conflicts with current usage unless and until a proposal to deal with it under
Art. 14.1 or 56.1 has been submitted and
rejected.
Ex. 1. The name Strophostyles helvola (L.) Elliott was widely and persistently
used from the mid-19th century for a taxon that Verdcourt (in Taxon 46: 357-359. 1997) reported did not include its type,
which he found to be referable to Macroptilium lathyroides (L.) Urb., based on Phaseolus lathyroides L. (1763)
and over which P. helvolus, the basionym of S. helvola, has priority. Verdcourt did not transfer the epithet
helvolus to Macroptilium which would have conflicted with current usage, but proposed P. helvolus
for conservation with a conserved type that he believed referred to the species to which the name S. helvola had
been applied; the proposal was accepted. When Delgado-Salinas & Lavin (in Taxon 53: 839-841. 2004) later discovered that
this first-conserved type applies to another species, Strophostyles umbellata (Muhl. ex Willd.) Britton, they also
preserved current usage and proposed a new conserved type.
(c)
2006, by International Association for Plant Taxonomy. This page last updated
16.03.2007
.
