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Welcome, this blog belongs to my website The Ginkgo Pages about the tree Ginkgo biloba. Please post your comment/question or mail me. Thank you! - Cor Kwant
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February 24, 2017

Ginkgo forest Hongcheon


Hongcheon forest,  43,000 sq.m, has around 2,000 Ginkgo trees.
Location Hongcheon, Gangwon-do Province, S. Korea. Open to the public in October.
It is a popular autumn attraction in Korea.



Video on YouTube.



Video YouTube.

Photo Korea Travel.

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Visit my website The Ginkgo Pages.


February 14, 2017

Swimming Ginkgo sperm


Ned Friedman, director of the Arnold Arboretum, Harvard University, writes about the swimming of the Ginkgo sperm on his blog:

"Why would a ginkgo tree, whose seeds may be found more than a hundred feet in the air, resort to swimming sperm to find a mate? The answer is rooted in history. The ancestors of all land plants (green algae) had swimming sperm that sought out (swam to) eggs to create the next generation. A pretty good idea if you live full time in the water.  Amazingly, after all of these years (475 million, to be precise, since the first green algae colonized land), sperm of ginkgo trees, cycads, ferns, horsetails, mosses, and other groups of plants still find their egg-mates by swimming, tracking the chemical signals that the conspecific (same species) egg is emitting to attract a suitor. Truly, this is a vestige of evolutionary history."

Read full article here

More info on my website: History-page + Propagation-page and Ovule-page.


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January 25, 2017

Ginkgo and concert, Gyeongju Ungok Seowon



Concert near an ancient Ginkgo tree.

Location: Gyeongju Ungok Seowon (Confucian academy, 1784) in South Korea. 

Along with its original purpose for education, the academy still functions as a major site for clan activities of the descendents of the sage revered here.
Gyeongju is Korea's ancient capital for nearly a millennium and is one of the richest cultural and historic areas in Asia, including UNESCO World Heritage sites.

Large photo of this magnificent tree here

Video by GBI Broadcasting on YouTube. 

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Visit my website The Ginkgo Pages.


January 13, 2017

Ginkgo botanical wall chart, 1900


Bevruchting van Ginkgo
  (fertilization of Ginkgo)

Watercolor, c. 1900
Creator: C.B. van der Zeijde 
Dimensions: 100,7 x 71 cm

Collection: The art of knowledge: educational botanical wall charts 1870-1960; University of Amsterdam

More info: ovule development on my website:
Ovule-page + Propagation page.

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Visit my website The Ginkgo Pages.


January 09, 2017

Updates of my website The Ginkgo Pages

* Updated Fossils-page: Ginkgo Jurassic wood.
 
* 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.

Subscribe to receive free email updates.-- Cor Kwant

Visit my website The Ginkgo Pages.


December 22, 2016

Discovery of fossil wood Ginkgo biloba



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.


Article: 
Jiang, Z. et al. A Jurassic wood providing insights into the earliest step in Ginkgo wood evolution.
Scientific Reports 6, art.no. 38191; doi: 10.1038/srep38191 (2016).

Full article: Nature.com
 
Photo: CRIENGLISH.com

 More info and photos of 

fossil Ginkgo wood on my Fossils-page.

 

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December 20, 2016

Swan Lake with Ginkgo leaves


"Swan Lake"  ballet as seen by Prof. Zhonglang Wang,
Kunming Botanical Garden, Chinese Academy of Sciences, Beijing.
Figures composed of Ginkgo leaves, stalks and seeds, wonderful!
See more here.


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December 18, 2016

Merry Christmas - Happy 2017


**********************

Wishing all visitors of my forum-blog, website The Ginkgo Pages , YouTube channel and Twitter 
Peace and Happiness at Christmas and throughout 2017 ,
Cor Kwant

**********************

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December 10, 2016

Ginkgo Poem Howard Nemerov

Washington University in St. Louis, Missouri has several Ginkgo trees growing on its campus. Well-known is its Ginkgo Walk, that became the inspiration for WashU former professor Howard Nemerov to write his famous poem The Consent; he loved the Ginkgo Walk.
The path leads from the Brookings Quad to the rest of the campus - and directly to Olin Library.
More on my blogpost of  September 22, 2011.

Oliver Sacks wrote about this poem in The New Yorker of November 24, 2014: Night of the Ginkgo.
 
On this video WashU students read Howard Nemerov’s poem.
Please do not read the video subtitles (incorrect), but read the correct text + more info on my website.



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Visit my website The Ginkgo Pages.


December 06, 2016

Old Ginkgo tree in Kobe in winter, Japan

 Snow covered old Ginkgo.
 


Big Ginkgo tree in Kobe in fall/winter, Japan. 
Said to be 500 years old, height 36 m, girth 11.2 m. Natural monument.
Mizuho, Iiyama-shi, Nagano Prefecture. 

Read my blog post of December 19, 2014 to see more of this great tree.

Video on YouTube by haruyuki onoue.

Subscribe to receive free email updates.-- Cor Kwant

Visit my website The Ginkgo Pages.


December 02, 2016

Updates of my website The Ginkgo Pages

 * New topic: Complete genome sequence of Ginkgo decoded.

 * New photo on Photospecial page: Fallen Ginkgo leaves + poem by Howard Nemerov. 

Subscribe to receive free email updates.-- Cor Kwant

Visit my website The Ginkgo Pages.


November 22, 2016

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 at: http://phys.org/news/2016-11-fossil-genome-unveiled.html#jCp


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

Subscribe to receive free email updates.-- Cor Kwant

Visit my website The Ginkgo Pages.


November 20, 2016

Ginkgo trees in fall on twitter: The Ginkgo Tweets

Visit my Twitter account The Ginkgo Tweets to view many photos/videos/news about the Ginkgo in fall, for instance:






Subscribe to receive free email updates.-- Cor Kwant

Visit my website The Ginkgo Pages.


November 09, 2016

Ginkgo leaves are falling !

This Ginkgo tree in Romania drops its leaves all at once.
Location: Rose`s Park  Bacău.
Wonderful!



Video on YouTube by DEFERLARI BACAU

This video is from Korea:



Video on YouTube by Jh Kim.

Read more about the falling of the leaves on my website.

Subscribe to receive free email updates.-- Cor Kwant

Visit my website The Ginkgo Pages.


October 26, 2016

Big Ginkgo of Kuwanomoto, Japan



A year in the life of the "Big Ginkgo of Kuwanomoto".

Location: Close to a temple,  Toyooka, Hyōgo Prefecture, Takeno-cho, Kuwanomoto, Japan.
Height 48 m, girth 9.9 m, planted c. 1650.
Natural monument.
Read more here.

Video by Jiro Fujiwara on YouTube.

Subscribe to receive free email updates.-- Cor Kwant

Visit my website The Ginkgo Pages.