More info click here.
* New photo photospecial page: Old Ginkgo with witches broom in Nijmegen, the Netherlands.
* Added video on my Art-page of Ginko carbon table by Ross Lovegrove.
January - June
2013 (new on top)
* New photo photospecial page: 15 Ginkgo trees, Bologna, Italy.
* New topic: Ginkgo makes it to Yale.
* Added on Where-page: photo weeping Ginkgo with chichi: Peoria, Illinois
* Article added on my Fossils-page: - Chung-Shien Wu, et al. Chloroplast Phylogenomics Indicates that Ginkgo biloba Is Sister to Cycads.
* Added on my Literature-page: "Evidence and Rational Based Research on Chinese Drugs" by Hildebert Wagner, Gudrun Ulrich-Merzenic + "Ginkgo: The Tree That Time Forgot" by Peter Crane.
* New photo photospecial page: Ginkgo tree, 1808, with chichi.
Kraków, Botanic Garden of Jagiellonian University.
* New topic: Washington Ginkgo mistakenly cut down.
* Follow me on Twitter: updates website and blog + tweets related to the Ginkgo tree.
* Added video of name calligrapy on Name-page.
* Added to my Art-page: Fashion designers and Ginkgo.
* Added photos of old female Ginkgo with chichi, Jagellonian University Botanical garden in Kraków, Poland.
* New topic: Ginkgo and memory: new long-term study.
* Added to my Art-page: photos of Ginkgo Gate, Botanic Garden Adelaide, Australia.
* New topic: Update of Ginkgo afforestation project in Argentina.
* New photo photospecial page: Frosted Ginkgo leaf.
* Update of my Awards-page: Yale University.
* Added pdf to download my Tree-page.
July - December
2012 (new on top)
* Added new page: Ginkgo biloba silvestre, montañas Dalou, China.
* Added new page: Wild Ginkgo trees Dalou Mountains, China.
* New photo photospecial page: Ginkgo leaves.
* New topic: Jurassic mimicry between a hangingfly and a Ginkgo from China.
* Added on Tree-page: HD-video of one of the oldest Ginkgo trees outside Asia: Geetbets, Belgium, c. 1750.
* Added to the poem 'The Consent' by Howard Nemerov: French translation.
* Added to my Art-page: photos I made of Ginkgo Project Beekbergen (architecture).
* Added to my Art-page (picture gallery): Ginkgo sculpture by Gerri Grijsen + Floriade 2012.
* New photos photospecial page: Wild Ginkgo trees in Dalou Mountains, southwestern China: forest + seedling.
* New topic: Ginkgo and Alzheimer's disease.
* Added to my Art-page (stamps): Ginkgo stamp Japan: Tokyo, Meiji Jingu Gaien Park.
* New photos photospecial page: Ginkgo trees and gardens, Floriade 2012 - World Horticultural Expo.
* New topic: Evidence of wild Ginkgo biloba in Dalou Mountains, China.
* Added on my Literature-page: book by Yiyun Li.
* New photo photospecial page: Ginkgo leaves.
* Added on my Fossils-page: video about the history of ginkgo.
*New topic: A Modern Insect Pollinator from the Dinosaurs Time.
* New photo photospecial page: 7 Ginkgo trees in Bologna, Italy.
January - June
2012 (new on top)
* New photo photospecial page: Pollen on male Ginkgo tree in April.
* Added on my Usage-page: photos of big-ginkgo hairstyle.
* Added photo Ginkgo adiantoides fossil, Oligocene, Oregon.
* Added to my Art-page (picture gallery): Architecture: Ginkgo project Beekbergen + antique Japanese dolls SAGA-NINGYÔ.
* New photo photospecial page: Ginkgo trees and Wollemi pine, Evolution garden, Valloires gardens, Argoules, France.
* Added to my Art-page (picture gallery): Kosode with Ginkgo leaves, Edo period.
* New topic: Glaucoma and Ginkgo biloba.
* New topic: Alan Mitchell lecture at Kew Gardens about the Ginkgo.
* Added Google scholar search box on Links-page.
* New photo photospecial page: Ginkgo leaves in fall.
* Added on my Literature-page: French youth book "Le Ginkgo".
* New topic: read / download book on Ginkgo biloba.
* Added on my FAQ-page several Ginkgo nurseries in the Netherlands and Belgium.
* New photo + video photospecial page: Ginkgo biloba trees in Amsterdam.
* Added Feedburner : get updates of forum-blog and website via email.
don't mention minor updates here. Not all changes are updated on the German/French/Dutch
makes it to Yale
Ginkgo, the tree that time forgot, paper book by Peter Crane.
Sir Peter Crane is Carl W. Knobloch Jr. Dean of the School of Forestry & Environmental Studies and professor at Yale University, New Haven, USA.
Illustrations: 61 black and white drawings by Polyanna Von Knorring. Yale University Press, March 2013.
book is about the survival of the Ginkgo biloba tree.
It is not just a scholarly monograph but a popular science book, presenting a blend of science, culture and personal experiences.
After an introduction to the living tree Crane, a palaeobotanist, explores the evolutionary history of ginkgo over the past 250 million years from its origin, proliferation, eventual decline, and ultimate resurgence through its association with people. He also highlights the cultural and social significance of the ginkgo, its usage and future. The text is interspersed with digressions on people behind a specific aspect, biology and tree lore. Crane's book is both entertaining and informative.
It is composed from a selection of available sources and stories, important key resources are mentioned in the Preface (read below). The extensive footnotes and bibliography provide jumping off points to study the Ginkgo in more detail.
In the book’s Preface
Peter Crane features my internet website The Ginkgo Pages as a most
important key resource:
“Research for this book benefited greatly from the availability of a few key resources that had already drawn together much scattered material on ginkgo, most important the wonderful Ginkgo Pages Web site by Cor Kwant….”:
My website is mentioned as an important key resource in new Yale University book about Ginkgo. bit.ly/11fvcuotwitter.com/theginkgopages…
— The Ginkgo Tweets (@theginkgopages) March 20, 2013
More Ginkgo books can be found on the internet, some are mentioned on my Literature-page.
Ginkgo mistakenly cut down
Washington D.C., Farragut Square, near White House:
A historic Ginkgo tree, the largest Ginkgo in Washington, was mistakenly cut down. The male tree was 102 feet tall, with a crown spread of 79 feet and trunk circumference of 142 inches.
The National Park Service said the contractor was supposed to cut down a dead ash tree on the other side of the park. There was nothing wrong with the Ginkgo.
Historian Jonathan Pliska wrote the Ginkgo was probably planted in 1873 or earlier and been incorporated into the design of the square, which honors Adm. David Glasgow Farragut.
Read more in this column by John Kelly in the Washington Post. Update and video on my blog.
of Ginkgo afforestation project
Inés Fangano, Project Coordinator of Lincoln School in La Plata, Argentina, writes:
"In 2010 we started an institutional project "Forestar con Ginkgo Biloba" and you published it in your web page.
I am now writing to you to tell you that the project is successfully well on its way and, up to now, we have got 800 trees, 60 of which are in flowerpots in our nursery. These will eventually be transplanted in soil in the school playground or in some park or green place which we will call "Paseo de los Ginkgos".
We have been sowing since 2010, and every year we obtain about 250 trees; so all the students who graduate every year get one of these trees which was planted the same year. The rest of the trees are sold at the Science Fair so as to collect money to support our nursery."
Read more: Phys.org + PNAS
Dong Ren et al.,
'Jurassic mimicry between a hangingfly and a Ginkgo from China', 2012 PNAS,
- Art by Wang Chen, from Wang et al., 2012.
- Juracimbrophlebia ginkgofolia from PNAS 2012.
than 110 million years ago, in the age of the dinosaurs, a group of insects
delivering pollen became trapped in resin beads. An international research
team found four female thysanopterans, also called thrips, that had
been enclosed in the amber in Álava (North of Spain) for 105-110
million years, with their bodies covered with pollen of gymnosperms.
It is the oldest evidence of pollination discovered so far —and the only one from the Mesozoic Era— that has been presented in a paper published in the journal Proceedings of the National Academy of Sciences (PNAS).
One of the females became trapped in the resin when transporting 140 pollen grains, whereas another was transporting 137 grains. These insects are less than two millimetres long and exhibit highly specialized hairs with a ringed structure which had never been seen before and which increases their ability to collect and transport pollen grains. These hairs are very similar to the ones of bees, which have the same function. The study concludes that pollen is from a kind of cycad or ginkgo tree. Only one species of ginkgo trees, Ginkgo biloba, currently survives, which is considered a living fossil.
Reconstruction of a sample of Gymnopollisthrips
on an ovulate organ of an extinct ginkgo.
Picture: Enrique Peñalver
Gymnopollisthrips with pollen
which evolutionary reason did these tiny insects, 100 million years ago,
collect and transport ginkgo pollen? Their ringed hairs cannot have grown
due to an evolutionary selection benefitting the trees. The benefit for
the thrips can only be explained by the possibility to feed their larvae
Why came these tiny insects of the Cretaceous, whose species was named Gymnopollisthrips by researchers, to thrust in the pollen of plants? The researchteam assumes that this species formed colonies with larvae living in the ovules of some kind of ginkgo for shelter and protection, and female insects transported pollen from the male ginkgo cones to the female ovules to feed the larvae and at the same time pollinate the trees.
Only amber can preserve behavioral features like pollination in such rich detail over millions of years. 100 million years ago, flowering plants started to diversify enormously, eventually replacing conifers as the dominant species. “This is the oldest direct evidence for pollination, and the only one from the age of the dinosaurs. The co-evolution of flowering plants and insects, thanks to pollination, is a great evolutionary success story. It began about 100 million years ago, when this piece of amber fossil was produced by resin dropping from a tree, which today is the oldest fossil record of pollinating insects. Thrips might indeed turn out to be one of the first pollinator groups in geological history, long before evolution turned some of them into flower pollinators", concludes Carmen Soriano, one of the researchers.
Read more: ScienceDaily + University of Barcelona.
Doi: 10.1073/pnas.1120499109 PNAS May 29, 2012 vol. 109 no. 22 8623-8628 .
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