Could he have meant trees originating in those areas? Certainly east Asian
trees are grow all over for their colours (Rhus) while the European Plane tree
leaves (occidentalis rather than orientalis) that Nathan photographed in the
street just go brown and drop. We have some colour around here - known for it
in fact - but there is only one indigenous deciduous Australian tree and that
doesn't colour up (Nothofagus gunnii, I think) and the Queensland White Cedar
in my garden which does drop if grown in southern, colder zones only manages a
dull yellow.
Andrew Fildes
afildes@xxxxxxxxxxxxx
On 01/11/2010, at 9:53 AM, Chuck Norcutt wrote:
> A week ago the question had to to with leaves changing color in the
> autumn. The question was answered by a biologist who was identified as
> a "visiting professor" but no information was given about where he was
> from. But I was rather astounded by the answer which, as a passing
> comment, said that the only places in the world where leaves change
> color before dropping off the trees in the fall are eastern North
> America and north eastern Asia.
--
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