Ginkgo biloba
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Cor KwantCor Kwant 
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Last updates:
* Added many stamps on my Art-page.

* Added 2 new photos on picture gallery Art-page: Dijsselhof - Kunst en Samenleving

* New photo on Photospecial page: Pollen on male Ginkgo tree.

* New topic: Cretaceous fossil relative of Ginkgo discovered.

* Updated Fossils-page: Ginkgo Jurassic wood.

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* Updated Literature-page: 2 new articles: 1. Ginkgo genome sequence and 2. Ginkgo Jurassic wood.
* New topic: Jurassic wood provides insights into Ginkgo wood evolution.
* New topic: Complete genome sequence of Ginkgo decoded.
* New photo on Photospecial page: Fallen Ginkgo leaves + poem by Howard Nemerov.
* Update new topic: 2nd generation A-bombed Ginkgo tree planted at UN Geneva, Oct. 3.
* New photo on Photospecial page: Old Ginkgo tree, Maldegem, Belgium + video.
* New photo on Photospecial page: Many Ginkgo  trees in Zwolle, Cemetery Kranenburg.
* New photo on Photospecial page: Ginkgo  leaf.
* New topic: 2nd generation A-bombed Ginkgo tree to be planted by UNITAR.
* New photo on Photospecial page: My Ginkgo  seedling 1 week old.
* Added microphoto of Ginkgo stem cross section on my Wood-page.
* New photo on Photospecial page: Sprouting Ginkgo leaves in spring.
* Added to Art-page: Text and pictures first Western documentation of Ginkgo in China.
* Added on Nancy-page: photos of Ginkgo leaves on door to The Ecole de Nancy Museum, Nancy Art Nouveau by Jacques Gruber.
* New topic: The Ginkgo Tweets: 2500+ followers on Twitter!
* New photo on Photospecial page: Fallen Ginkgo leaves.
* New topic: The Ginkgo Pages Forum/Blog in 2015.
* New topic: My website and blog are archived in the National Library of the Netherlands Web Archive (Webarchief van Nederland Koninklijke Bibliotheek) for present and future generations.
* New photo on Photospecial page: potted Ginkgo in fall colours.
* Added photos of Ginkgo trees 5th Avenue NYC, Washington Square Park and Philadelphia on Where-page and Empire State building and Ginkgo tree.
* Added on Propagation-page: video of deer eating Ginkgo seeds in Japan.
* Added spherical panorama photo of Hiroshima Ginkgo at Hosen-Ji.
* Added Art-page Picture gallery: work by Tom Phillips  A Humument Page 297 + Portrait of Iris Murdoch.
* New Photo on Photospecial page: Ginkgo trees in Bologna, Italy.
*Added new Ginkgo bonsai photo.
* Added new theory about the spelling of Ginkgo: on my Name-page.
* Added on Literature-page and Dalou-page: book The  Subtropical  Vegetation of Southwestern China by Cindy Q. Tang (contains chapter Dalou Mountains).
* New topic: The Ginkgo Tweets: 2000+ followers on Twitter!
* New supersized photos on my Photospecial page: Ginkgo huttonii fossil leaves.
* New supersized photo on my Photospecial page: Spring: my seedlings are alive!
* New supersized photo on my Photospecial page: Snow covered Ginkgo tree.
* Added: Asteroid Ginkgo to Name-page.
* New topic: Asteroid Ginkgo.
* New supersized photo + video on my Photospecial page: 4 Ginkgo trees, planted c. 1882, Strasbourg in France.
* Added new photo of female tree: leaves fall before the seeds.
* New topic: Contributions by Peter del Tredici, Harvard University.
* New topic: Story about the Ginkgo at Hellekis manor, Kinnekulle, Sweden.
* Added special page on Bonsai-page with dwarf (penjing) Ginkgo trees from China, photos by James Wilkins.
* New topic: Oliver Sacks: Night of the Ginkgo (The New Yorker).
* Two new supersized photos on my Photospecial page: Buddha and two Ginkgo trees, Artis Zoo, Amsterdam.
* New topic: The Ginkgo Tweets: 1500+ followers on Twitter!
* Two new supersized photos on my Photospecial page: Ginkgo tree Hortus botanicus Leiden, 1785 + female branch.
* New topic: Video of  transplanting 750-year-old Yonggyeri Ginkgo tree in South Korea.
* New supersized Photo of the Month on photospecial page: Raindrops on Ginkgo leaf.
* New Photo of the Month on photospecial page: Sprouting Ginkgo seeds.
* Added to my Art-page: woodblock print of 'Miss Ginkgo', Edo period.
* New Photo of the Month on photospecial page: My Ginkgo seedlings.
* New topic: Cretaceous stick insect fossil mimics Ginkgo foliage.
* New topic: New Ginkgo cultivars and names list.
* New Photo of the Month on photospecial page: Huge ginkgo in Winston-Salem, NC.
* New topic: The Ginkgo Tweets: 1000+ followers on Twitter!
* New Photo of the Month + video on photospecial page:   Ginkgo trees in Amsterdam in fall.
* Added photo of Ginkgo in St. Petersburg, Russia.
*Added on my Usage-page: music video of popular nursery song Ginkgo biloba.
* New Photo of the Month on photospecial page:   Ginkgo leaves with green edges.
* Update of Art Nouveau and Ginkgo in Nancy : new photos Banque de Paris (door handle) and Museum Ecole de Nancy.
* New Photo of the Month on photospecial page:   Art Nouveau entrance door to Ecole de Nancy Museum adorned with Ginkgo leaves .
* New Photo of the Month on photospecial page:   Ginkgo leaf with raindrops.
* Added Ginkgo tree photos: USA - Wissinoming Park, Philadelphia, PA + UK - Kinnersley Castle, Herefordshire.
* Update of Fossils-page : picture gallery: Ginkgo adiantoides, Unterwohlbach Formation, South Germany.

I don't mention minor updates here. Not all changes are updated on the German/French/Dutch summaries.

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Cretaceous fossil relative of Ginkgo discovered
Umaltolepis mongoliensisAn international team of paleontologists  have discovered a new extinct species of plant from the Early Cretaceous that appears to be distantly related to living Ginkgo biloba. The fossils, named Umaltolepis mongoliensis, were collected from ancient peat deposits at the Tevshiin Govi lignite mine in the steppes of central Mongolia.

Results of the research, supported by the National Science Foundation (NSF), are published in this week’s issue of the journal Proceedings of the National Academy of Sciences (PNAS).

"The stems and leaves are similar to the Ginkgo tree, but the seeds, and especially the structures they are born in, are unlike any other known plant, living or extinct," says scientist Patrick Herendeen of the Chicago Botanic Garden, co-author of the PNAS paper.
The seed-bearing structures are more comparable to those of certain extinct Peltaspermales and Umkomasiales.

Ginkgo may be the last survivor of a once highly diverse group of extinct plants, several of which show various degrees of ovule enclosure.

Photograph with a selection of Early Cretaceous fossil specimens of Umaltolepis mongoliensis along with a leaf and stem from living Ginkgo

Shown are six fossil strap-shaped leaves, three fossil capsules (one with basal stalk present), and two pieces of fossil stem. 

On the left is a leaf and a stem from Ginkgo biloba.

Umaltolepis mongoliensis

Read more:
PNAS  + supporting info
Chicago Botanic Garden + more photos

More info about Ginkgo fossils on my website: Fossils-page.

Pictures: Chicago Botanic Garden

Jurassic wood provides insights into Ginkgo wood evolution
Recently, Chinese and French scientists led by Wang Yongdong, professor at Nanjing Institute of Geology and Paleontology of the Chinese Academy of Sciences, researched new fossil wood of Ginkgo biloba. The fossil wood (Ginkgoxylon liaoningense) was collected from the Tiaojishan Formation in western Liaoning, northeastern China. It probably dates from the Middle to Late Jurassic.
According to the researchers this discovery represents the oldest well-dated occurence of Ginkgo wood.
Its anatomy departs slightly from that of modern Ginkgo, it displays all its characteristic features. It differs only in having a more mixed type of radial pitting, which also occurs, albeit locally, in modern Ginkgo wood. The xylem structures of Ginkgoxylon liaoningense illustrates the basal state of Ginkgo wood anatomy and will contribute to the understanding of Ginkgo evolution.


The fossil record of Ginkgo leaf and reproductive organs has been well dated to the Mid-Jurassic (170 Myr). However, the fossil wood record that can safely be assigned to Ginkgoales has not yet been reported from strata predating the late Early Cretaceous (ca. 100 Myr). Here, we report a new fossil wood from the Mid-Late Jurassic transition deposit (153–165 Myr) of northeastern China. The new fossil wood specimen displays several Ginkgo features, including inflated axial parenchyma and intrusive tracheid tips. Because it is only slightly younger than the oldest recorded Ginkgo reproductive organs (the Yima Formation, 170 Myr), this fossil wood very probably represents the oldest bona fide fossil Ginkgo wood and the missing ancestral form of Ginkgo wood evolution.

Article: Jiang, Z. et al. A Jurassic wood providing insights into the earliest step in Ginkgo wood evolution.
Sci.Rep.6, 38191; doi: 10.1038/srep38191 (2016).
Full article: Nature.com

More info and photos of fossil Ginkgo wood on my Fossils-page.

Complete genome sequence of Ginkgo decoded
Chinese researchers (BGI, Zheijiang University and the Chinese Academy of Sciences) laid bare the complete genome sequence of Ginkgo biloba, the oldest extant tree species.
They reveal its genome to be huge, comprising some 10.6 billion DNA "letters", containing 41,840 annotated genes.
The human genome contains just three billion letters.

Multiple seeds at visually different developmental stages were collected from five separate large Ginkgo trees at one of the Ginkgo refuge populations located on Tianmu Mountain, Zhejiang Province, China.

Its genome will be an extensive resource for studies concerning plant defences against insects and pathogens, and research investigating early events  in tree evolution and in evolution overall.
the ginkgo genome will provide an extensive resource for studies concerning plant defenses against insects and pathogens, and research investigating early events in tree evolution and in evolution overall.

Read more:
Full text article GigaScience/BioMed Central
BBC news

Photo credit: Fossil is from Klondike Mountain Formation, Republic, Ferry County, Washington, USA, Eocene, Ypresian. Stonerose Interpretive Center Collection, Modern leaf photo is by Ninjatacoshell, CC BY-SA via Wikimedia Commons.

The Ginkgo Pages Forum-Blog in 2015
Do you know I maintain a blog/forum about the Ginkgo since 2005?

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2nd generation A-bombed Ginkgo tree to be planted by UNITAR

2nd generation A-bombed Ginkgo planted by UNITAR

UNITAR’s initiative is called "Green Legacy Hiroshima" in which UNITAR is working with Hiroshima institutions and United Nations Office at Geneva (UNOG) Director-General to coordinate and arrange the planting of a Ginkgo Atomic bombed tree sapling from Hiroshima, in the Ariana Park of the Palais des Nations, the UN headquarters in Europe.  The Ginkgo tree will symbolise hope, resilience and peace, as well as generosity and beauty. The seeds and saplings of A-bombed survivor trees are being sent by the Green Legacy Hiroshima team to symbolic sites around the world, with activities unfolding in some 25 countries.
The Secretary-General Mr. Ban Ki-moon will personally plant the tree at the Palais des Nations later this year.

Planting of Ginkgo sapling, Geneva
Ban Ki-moon planting the Ginkgo sapling
United Nations Office, Geneva
October 3, 2016

Read more:
UNITAR: herehere + here + here
Facebook UNITAR
On my blog
On my website

Transplanting 750-year-old Yonggyeri Ginkgo in South Korea
Spectacular video on YouTube by Daeji Development Co., Ltd, Seoul of the transplanting of a 750-year-old Ginkgo tree, Kyungbuk Ahndonggun Yonggyeri, South Korea. This Ginkgo tree is 31 m in height, girth 14 m and is one of the biggest of South Korea, National monument no.175. The transplant is listed in the Guinness World Records register in 2013.


Contributions by Peter del Tredici, Harvard UniversityGinkgo at Arnold Arboretum (photo Peter del Tredici)
Senior Research Scientist Emeritus Peter Del Tredici of the Arnold Arboretum of Harvard University, also Associate Professor in Practice, Department of Landscape Architecture, Harvard Graduate School of Design, sent me a wonderful photo to show on my website: Ginkgo tree at the Arnold Arboretum taken on November 15, 2014.

He also pointed me to a short article he wrote about the popular Icho Namiki, the Ginkgo lined avenue in Meiji Jingu Gaien Park in Japan. Read his pdf here.

Thank you Peter!

Watch videos of this avenue on YouTube:

Asteroid Ginkgo
Asteroid 85197 (1991 TG5) is named Ginkgo after the Ginkgo biloba tree. It is a main-belt asteroid discovered on October 5, 1991 by F. Borngen and L. D. Schmadel of the Karl Schwarzschild Observatory at Tautenburg, Germany. Read more on Wikipedia and on this site by NASA Jet Propulsion Laboratory, California.
Ron Baalke pointed me to this asteroid on my Twitter. Ginkgo made its closest approach to Earth on December 24, 2014:

Twitter The Ginkgo TweetsThe Ginkgo Tweets: now 3000+ followers on Twitter, join them !

To all my followers: thank you !!

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Oliver Sacks: Night of the Ginkgo
"Night of the Ginkgo" by Oliver Sacks in The New Yorker:
"Today in New York—November 13th—leaves are falling, drifting, skittering everywhere. But there is one striking exception: the fan-shaped leaves of the ginkgo are still firmly attached to their branches, even though many of them have turned a luminous gold. One sees why this beautiful tree has been revered since ancient times...........Will it be November 20th, 25th, 30th? Whenever it is, each tree will have its own Night of the Ginkgo. Few people will see this—most of us will be asleep—but in the morning the ground beneath the ginkgo will be carpeted with thousands of heavy, golden, fan-shaped leaves."
Read full piece in The New Yorker of November 24, 2014.

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