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At 12:30 AM 6/10/00 -0400, John Bois wrote:
Did grass usurp a previously owned niche, or did it _create_ a new
one? I don't know. I do know grass is very special!
Some of both.
The great value of grass--one of the great values of grass, anyway--is its
abilty to thrive in arid areas. This combination seems to be perfect for
The range of grass probably extends further into the arid zone than ferns
ever did. But even today ferns can survive in amazingly dry
habitats. When I was in Australia I saw semi-arid gum woodlands (trees
circa 10-15 m tall) with an understory dominated by polypodiacean ferns,
dense enough to provide hiding places for small animals. And of course the
climate here in southern California is very dry, yet our woodlands have
abundant fern in the understory, but relatively little grass. (Note that,
since tree crown cover here is higher than in the aussie woodlands, the
ground cover is sparser).
May the peace of God be with you. firstname.lastname@example.org
- From: Ronald Orenstein <email@example.com>
- Re: Bracken
- From: John Bois <firstname.lastname@example.org>