[Taxacom] "moss" circles are actually liverwort
m.j.dallwitz at netspeed.com.au
Fri Mar 23 18:58:34 CDT 2007
> So, the situation is all the more intriguing -- not only are we out of
> the Arctic, we are on a different group of plants.
Growth rings might occur in anything that is growing at its periphery under
fluctuating conditions - even non-living things such as hailstones. However,
in many cases the rings mightn't be well preserved in an easily visible form.
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