Predictivity vs Useful
peter.stevens at MOBOT.ORG
Thu Feb 17 09:07:12 CST 2005
Indeed. And I had already replied privately to Barry as follows:
>Absolutely! But I can imagine a cynic's response - what about
>petiole anatomy (e.g.), what about flowers (which i could not look
>at for Peridiscaceae), etc. But then one invokes yet other
>characters, and one might get involved in the molecules/morphology
>debate/polemics. It is a grand life if you don't weaken.
>One must be wary of ascribing consilience to morphological traits that are
>discovered to happen to agree with molecular data when there exist possibly
>equal numbers of traits that do not agree (conformance rationalization) and
>support other arrangements. Jinking from one set of traits to another is
>okay if one set can be discounted in some way (e.g. statistically).
>Otherwise, the contrary sets remain to annoy.
>Richard H. Zander
>Bryology Group, Missouri Botanical Garden
>PO Box 299, St. Louis, MO 63166-0299 USA
>richard.zander at mobot.org <mailto:richard.zander at mobot.org>
>Voice: 314-577-5180; Fax: 314-577-9595
>Bryophyte Volumes of Flora of North America:
>Shipping address for UPS, etc.:
>Missouri Botanical Garden
>4344 Shaw Blvd.
>St. Louis, MO 63110 USA
>From: Barry Roth [mailto:barry_roth at YAHOO.COM]
>Sent: Wednesday, February 16, 2005 8:49 PM
>To: TAXACOM at LISTSERV.NHM.KU.EDU
>Subject: Re: [TAXACOM] Predictivity vs Useful
>Thank you. I would say therefore that your two examples demonstrate well
>power of genealogy/phylogeny-based classifications to generate correct
>predictions. It's particularly neat that the results from one data set
>(molecular) led to consilient results in another (morphological) set.
>--- Peter Stevens <peter.stevens at MOBOT.ORG> wrote:
>> >Yes, of molecular data.
>> >Were the new classifications (Plstyspermation to Alseuosmiaceae and
>> >Soyauxia to
>> >Peridiscaceae) based on phylogenetic analyses? That is, were the
>> >groups formed
>> >by these (and related?) re-allocations hypothesized to be monophyletic?
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