Indicator plants

Kenneth Nilsson kenneth.nilsson at mbox3.swipnet.se
Tue Apr 16 08:57:00 EST 1996


In article <eeeDpxIxF.n0u at netcom.com>,
eee at netcom.com (Mark Thorson) wrote:

>
>Lichens are indicators of air pollution.  Unlike vascular plants,
>they don't have any way to get rid of toxins, so they are
>particularly sensitive to environmental pollution.
>
>So you mean, if there are Lichens (is there only one kind?/ Is Liver Wart alichen?) the air is clean?



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