Date: Mon, 27 Oct 1997 15:28:33 From: SCHLAUER@chemie.uni-wuerzburg.de To: cp@opus.hpl.hp.com Message-Id: <aabcdefg4137$foo@default> Subject: Re: Question Re: VTF Classification
Dear Chris,
> Do you have a particular favorite classification scheme for the
> Droseraceae and Nepenthaceae? You mention that the most problematic point
> is the order, but putting these in the Caryophyllidae subclass is also
> contentious I would think (as opposed to breaking out a new subclass).
Both ways are equally contentious. At least part of the cp group
(viz. especially the families that do *not* contain cps:
Plumbaginaceae and Polygonaceae) have been classified as
caryophyllids in the past. If Scrophulariales are accepted as
asterids, I see absolutely no problem in grouping Droseraceae with
the caryophyllids.
> Given that Cronquist is absolutely wrong and Thorne, 1992, also misses the
> mark, I was wondering if anyone has actually proposed a higher level
> classification for this region of the plant taaxonomy that is consistent
> with the latest molecular data, etc.
Not formally.
> Or if not, do you at least have an opinion as to how these families
> could be best arranged based on the latest data?
Yes, indeed. It was published in CPN 26:34-38, 1997.
For all the pitiable listeners who do not (yet?) subscribe to CPN (or
who have not yet received the issue due to our latest mailing
problems), I sketch the tree in brief (ascii art, do not print in
proportional type!):
/Droseraceae
|_/Drosophyllaceae
| \/Dioncophyllaceae
/| \Ancistrocladaceae
||/Nepenthaceae
/|\|_/Plumbaginaceae
|| | \Polygonaceae
|| \Simmondsiaceae
|\/Frankeniaceae
/| \Tamaricaceae
|\Caryophyllidae s.str.
/\other true dicots
/\other angiosperms
\other plants
All branches beginning with a "_" indicate unresolved polytomies
(future research and/or more sequences required). The exact topology
may be subject to further modification, but I am fairly sure that the
"flavour" of this classification will remain. It is at least more
natural than in the older systems.
Kind regards
Jan
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