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TOPIC: Forest Gingko
http://groups.google.com/group/entstrees/browse_thread/thread/04fde27ee5acd65d?hl=en
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== 1 of 3 ==
Date: Fri, Jun 13 2008 1:07 pm
From: kouta.rasanen@t-online.de ("Kouta Räsänen")
ENTS,
I hope this works (the first attachment).
A photo near Shimogamo temple in Kyoto, Japan. The Gingko trees are
planted regulardy at the Temples. The forest around this temple is
regenerating more or less freely. Leaves of Gingko can be seen in
upper left corner and there is one small Gingko tree on the left
background, with many long visible horizontal branches. There are
two specimens of Cinnamomum caphora: the tree next to the right from
the small Gingko, and the second tree from the right (with twisted
trunk). What are the trees with smooth bark, I cannot say that,
because I haven't written it down. Undergrowth is Sasa dwarf bamboo.
Kouta
== 2 of 3 ==
Date: Fri, Jun 13 2008 3:41 pm
From: Larry
Kouta, Have seen them planted on city streets and peoples yards,
what
was the largest you saw? Awesome! The largest I've seen were around
6"
dia.! 25' tall! Larry
== 3 of 3 ==
Date: Fri, Jun 13 2008 8:35 pm
From: James Parton
Kouta,
Cool! You have found a " wild " Gingko! I have always read
that they
have never been found in the wild. Like the domesticated Oriental
Silk
Moth, many believe the Gingko being manipulated by man for so long
that it is incapable of germinating naturally. Maybe that is not
true.
JP
== 2 of 5 ==
Date: Sat, Jun 14 2008 3:23 am
From: Kouta Räsänen
Larry,
I think the largest I saw, was about in the same size class as the
largest you have seen. I cannot say precisely, because I did not
measure trees there. The biggest Gingkos are planted ones,
"wild"
trees are much more slender. I did not see the truly big Gingkos;
for
example, at the temple of Zempukuji there is a Gingko which is about
30 feet in girth (Pakenham: Remarkable Trees of the World (2002)).
On
the whole, Japan is very interesting, both dendrologically and
culturally.
Kouta
== 3 of 5 ==
Date: Sat, Jun 14 2008 3:42 am
From: Kouta Räsänen
James,
Apparently that is not true, that Gingko would be incapable of
germinating naturally. There is some naturalization in east Asia,
and
one or two areas have been found in China, where the occurrence of
Gingko is possibly natural.
http://www.xs4all.nl/~kwanten/tianmu.htm
By the name of the reserve, you will find from Internet many
articles
about the reserve.
I don't know what is the reason, why Gingkos don't naturalize in
Europe or in US, as they are so modest in cultivation.
Kouta
== 4 of 5 ==
Date: Sat, Jun 14 2008 5:58 am
From: pabigtrees
ENTS
Ginkgo definitely germinates from seed! It is a weed here in SE Pa
around and near the parent trees. The species hasn't made it into
natural areas due to a lack of a predator on it's fruit. I haven't
seen anything but humans eating the fruit, but they do germinate and
grow easily in the mulch beds under the trees. If you would like to
see many big Ginkgo, check out the ones listed on my website.
http://www.pabigtrees.com/trees/species/ginkgo_maidenhair.htm
Our largest tree is 20.8 x 85 x 96 for 360 points. I have come to
believe that this species was offered for sale at the Centennial
exposition in Philadelphia in 1876 in the Horticultural Hall, which
now provides us with many specimens that are of a similar size.
Scott
== 5 of 5 ==
Date: Sat, Jun 14 2008 6:00 am
From: "Paul Jost"
I've seen planted gingko's here reach 50-60 feet in height and up to
at
least 6 feet in girth. They don't have a chance to germinate near
plantings
here because all the common cultivars are sold as male clones.
Gingko
fruits are very messy and stinky, so female trees are undesirable in
landscape plantings. I'm not sure if female gingko's are planted
enough to
give them a widespread chance to germinate in the wild.
Paul Jost
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TOPIC: Forest Gingko
http://groups.google.com/group/entstrees/browse_thread/thread/04fde27ee5acd65d?hl=en
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== 1 of 3 ==
Date: Sun, Jun 15 2008 2:18 am
From: Kouta Räsänen
Ok. Those two things explain all: the lack of seed predators and the
scarcity of female trees. Apparently there are seed predators in
Japan, perhaps because of ancient history of cultivation.
Scott, you have incredible Gingkos there in Pa! Wow!
Kouta
== 2 of 3 ==
Date: Sun, Jun 15 2008 10:23 am
From: pabigtrees
ENTS
It is difficult to tell if nursery trees are male or female at a non
fruiting age. Many "male" trees were planted in the
streets of
Philadelphia a while back, and they were females in the long run. I
have also heard that Ginkgo has the ability to change gender when
there aren't and females around. This would in part explain how they
have been around formillions of years. In my lifetime, I hope to see
the Ginkgos grow and grow, as they do not have any diseases orinsect
predators that I know of. It will eventually recover it's
prehistoric
range I would guess.
Scott
== 3 of 3 ==
Date: Sun, Jun 15 2008 12:54 pm
From: James Parton
ENTS,
I just measured a Gingko at GE Lighting Systems, where I work. It is
the largest I know of in my area. It is 54.67 feet tall and 4.5'
1/2"
in girth. I think it is male because I have never seen it fruit.
It is really pretty in the fall with it's leaves a brilliant yellow.
The tree is of a tall slender form. Not broad and dense. I had a
smaller Maidenhair ( Gingko ) planted in my yard, years back. I
never
got to see it grow much. I hear that they are slow growers.
James Parton
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