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Date: Wed, 15 Sep 2004 08:22:26 -0400
From: [unknown]
To: phylocode@ouvaxa.cats.ohiou.edu
Subject: Rec. 10A and panstem names
I wrote earlier: > >> Although this has been said before, I want to reiterate that ther= e is >> no plan to mandate the Pan convention. What we are proposing is = only >> a recommendation that it be used. Jon Wagner wrote: >A recommendation that would still violate Recommendation/ Rule 10A. > It has been pointed out several times recently that the proposed=20 panstem convention (i.e., the recommendation that total clades be named by adding the prefix Pan-= =20 to the corresponding crown clade name) would violate Recommendation= =20 10A. However, I would like to clarify that Kevin and I are working= =20 on a proposed major revision of Article 10 as a whole. Without going= =20 into detail, the approach we are taking is to start with a rule that= =20 a preexisting name for a clade (or a paraphyletic group stemming from= =20 the same ancestor) must be used EXCEPT under a few specified=20 circumstances, under which a new name may be selected. We feel that= =20 this should be a rule rather than a recommendation to prevent people= =20 =66rom simply ignoring preexisting names and coining a whole new set = of=20 names. The most obvious circumstance under which a new name may be used is= =20 if there is no preexisting name for the clade. Another circumstance= =20 specified in our proposed revision of Art. 10 is if the clade to be= =20 named is a total (panstem) clade, in which case the author is=20 encouraged (but not required!) to use a Pan- name. However, the=20 recommendation that panstem clade names be formed in this way makes= =20 it clear that the author has the option of using a well known=20 preexisting name instead. Phil --=20 Philip D. Cantino Professor and Associate Chair Department of Environmental and Plant Biology Ohio University Athens, OH 45701-2979 U.S.A. Phone: (740) 593-1128; 593-1126 Fax: (740) 593-1130 e-mail: cantino@ohio.edu