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RE: Asplenium adulterinum wanted! Was: Re: name calling :-)

Asplenium adulterinum is an allopolyploid species (2n=144) that originated
from hybridization of Asplenium viride (2n=72) and A. trichomanes subsp.
trichomanes (2n=72). It looks like Asplenium trichomanes, but the rachis
is dark brown-red only to about about 2/3 or 3/4 of its length.  In Europe
it occurs on serpentine, in North America on limestone. In North America
it's known (so far?) only from several localities in coastal British
Columbia, Canada.

All the best,

Adolf Ceska 
1809 Penshurst Rd.
Victoria, BC, Canada V8N 2N6

On Wed, 28 Aug 2002, Alan Ogden wrote:

> I can't find this fern in my books of N.American ferns - what is its
> distribution please, Alan (UK)

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