Dichelostemma--TOW

Alan Meerow miaam@ars-grin.gov
Tue, 27 May 2003 16:38:57 PDT
Jane,

No South American Themidaceae.  Strictly Southwestern and Western U.S. and
Mexican.  There is no true Brodiaea in Chile.  All the Chilean onions are
still onions.

Alan
-----------------------------
Alan W. Meerow, Ph.D., Research Geneticist, Systematist and Curator
USDA-ARS-SHRS, National Germplasm Repository
13601 Old Cutler Road, Miami, FL 33158 USA
voice: (305) 254-3635   fax: (305) 969-6410
email: miaam@ars-grin.gov
WWW page: http://ars-grin.gov/ars/SoAtlantic/…

----- Original Message ----- 
From: "Jane McGary" <janemcgary@earthlink.net>
To: "Pacific Bulb Society" <pbs@lists.ibiblio.org>
Sent: Tuesday, May 27, 2003 12:41 PM
Subject: Re: [pbs] Dichelostemma--TOW


> Like Mark McDonough, I was wondering about the Themidaceae. Is it to
> include some South American genera too? There is (or was when my reference
> book was written) at least one actual Brodiaea in Chile (B. porrifolia),
> along with Leucocoryne, Fortunatia (which has a raceme, not an umbel), and
> some others that may be closer to Allium, such as Tristagma. And where
does
> Nothoscordum end up (other than in the garden where we wish it were not)?
>
> Jane McGary
> Northwestern Oregon
>
> At 11:16 PM 5/26/2003 -0400, you wrote:
> >This genus [Dichelostemma] has been
> >considered to be a part of many different families including Alliaceae.
In
> >The Jepson Manual (1993) it was classified in Liliaceae. Recent work is
now
> >placing it in a new family, Themidaceae, which includes other California
> >genera (Androstephium, Bloomeria, Brodiaea, Muilla, and Triteleia.)
> >
> >Can somebody cite a definitive technical paper that defines the
boundaries of
> >Themidaceae.  I'm aware of the existance of this new family, particularly
in
> >regard to pulling Triteleia and Brodiaea out of Alliaceae, but this is
the
> >first I've heard that Muilla is also swallowed up by Themidaceae.  What
> >are the
> >defining characteristics that separate the Themidaceae from Alliaceae? I
need
> >to be convinced, because the evidence I've evaluated thus far seems less
than
> >convincing (regarding the very existance of Themidaceae).  Regarding
Muilla,
> >this is an anagram of Allium (of which there are several) to describe a
> >closely
> >allied genus (Muilla is Allium backwards).  So it's ironic indeed, that
such
> >an ally is moved out of Alliaceae, don't you think?
> >
> >Mark McDonough        Pepperell, Massachusetts, United States
> >antennaria@aol.com    "New England"               USDA Zone 5
> >==============================================
> > >> web site under construction - http://www.plantbuzz.com/ <<
> >      alliums, bulbs, penstemons, hardy hibiscus, western
> >             american alpines, iris, plants of all types!
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