Re: [SpaceAgeRobin] DeRose intro
- To: "Space Age Robin" S*@yahoogroups.com
- Subject: Re: [SpaceAgeRobin] DeRose intro
- From: "Neil A Mogensen" n*@charter.net
- Date: Mon, 21 Feb 2005 17:32:42 -0500
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Randall, actually beards on both standards and
falls is one of the defining characteristics of regelias. That's why the
subsection (as shown in TWOI, p. 7) is called "Hexapogon," which translated into
English means "6-beard."
I suspect the taxonomy of the Genus Iris stands in
some different array than that set forth by G. H. M. Lawrence, the one followed
in the outline on the page cited. I have no idea whether, even, the matter
of how the genus is arranged and what its limits are is actually a fully settled
matter.
Logically, it seems to me that the regelias and
oncocyclus, clearly related to a degree, and probably derived from common
ancestry in some remote past, would be grouped together in distinction from
the Eupogons, as both subsections have diffuse beards of hairs which are
extensions of single cells, arillate seeds and similar climatic requirements by
and large. The two groups, however, have distinct chromosome counts, regelias
with n=11, oncocyclus with n=10, and the regelia karyotype has a very long
metacentric which that of the oncocyclus lacks.
Neil Mogensen z 7 western NC
mountains
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