FW: Fungi and Four Kingdoms
Curtis Clark
jcclark at CSUPOMONA.EDU
Thu Oct 7 21:09:15 CDT 1999
At 02:30 PM 10/7/99 +1100, Eric Zurcher wrote:
>a substantial amount of reticulation. This certainly complicates matters
in
>a system which absolutely requires that taxonomic groups be monophyletic.
I
>see this a big problem with the cladistic approach, but one that most
>cladists just seem to ignore or pretend is too insignificant or rare to
>bother with.
Ironically, the proposed phylogenetic code deals with reticulation better,
since there is not the requirement that the hierarchy be non-overlapping. A
species or lineage of hybrid origin can belong to two overlapping clades.
And "most cladists" certainly doesn't include students of angiosperm
phylogeny; dealing with reticulation is a common activity for many of us.
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Curtis Clark http://www.csupomona.edu/~jcclark/
Biological Sciences Department Voice: (909) 869-4062
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