Date: Wed, 08 Nov 2000 10:37:02 -0700 From: chamb@u.arizona.edu To: cp@opus.hpl.hp.com Message-Id: <aabcdefg3244$foo@default> Subject: Re: endangered bladderworts
At 03:40 PM 11/6/2000 -0800, you wrote:
>
>Hi All,
>I am wondering which Utricularia species are endanged.
>Particularly those in South America and the United States. With
>such finite habitats you would expect quite a few. Any help would
>be great.
I presume you are interested in which Utricularia are endangered globally?
In the state of Indiana, U. geminiscapa, U. minor, and U. radiata are
listed as Endangered:
http://www.state.in.us/dnr/naturepr/endanger/plant.htm
But none of these are listed as Endangered on the national level, they just
happen to be on the edge of their range or disjunct in Indiana. So while
they are truely rare in that state, they may be quite common elsewhere, ie.
U. minor is very common in Michigan. It must find its southern limit near
the MI/IN border.
Utricularia olivacea is listed as Endangered or Threatened in a number of
southern states, but has a G4 global rating (globally widespread and
apparently secure).
Utricularia ochroleuca is another plant, apparently rare in the US, but
more common in Europe. I don't know of any Utricularia species in the US
which has an insecure global rating.
Michael
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