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By Website Editor |
Jun 13, 2018

North America is home to 91 species of oak trees. Astoundingly, the various species rarely, if ever, occur alone. Where one kind of oak is found, invariably at least one more will be found. How can nature support a setup like that when it operates on the principle that only the fittest survive in any one setting?

By Roderick Cameron |
Jun 10, 2018

To honor Estonia’s centenary, we chose as subject for this article in our series on Historic Oaks, Estonia’s largest, oldest, and most famous oak: the Tamme-Lauri Oak.

By Website Editor |
Jun 3, 2018

Illinois State Museum features dwarf chinkapin oak, discovered in Illinois during an IOS Tour, as part of the Illinois Bicentennial exhibition.

By Website Editor |
Jun 3, 2018

Plant pathologists from the California Department of Agriculture (CDFA) recently identified a new species of fungal pathogen that infects oak, chinkapins, and tanoaks. Until recently, North American diagnosticians called all species of the genus Tubakia that infects oaks in North America, Tubakia dryina, because they all have very similar morphological features to this European fungus. However, a new study shows that the North American species vary genetically from Tubakia dryina. Among these is the newly recognized California species.

By Guy Sternberg |
Apr 19, 2018

Ed Holm lived in Redwood City, California and was born on 4 September 1930 and died 1 January 2018.

By Thierry Lamant |
Apr 10, 2018
Michel Timacheff - Photo: Guy Sternberg

There are meetings that prove to be crucial, primordial encounters that mark our lives. My meeting with Michel Timacheff, an afternoon of October 1999 in Vallauris, was one of them.

By Website Editor |
Apr 7, 2018

Rainer Lippert has always been interested in old trees. At the age of 16 he started to visit the largest trees in his home district in Germany, drawn in particular to the majestic grandeur of ancient oaks. He recorded their dimensions, categorizing the giants according to the girth of their trunks. As he grew older, his range of action became wider, expanding from rural district to administrative region, then his entire native Bundesland (as German states are called), and ultimately all of Germany.

By Website Editor |
Apr 2, 2018

It sounds like something out of science fiction, but David Cranwell has managed to create a reality where an acorn planted in New Zealand grows into 50 oaks in the Indian Himalayas.

By Francisco Garin... |
Feb 16, 2018

Since 2012 I have traveled to Costa Rica four times, searching for acorns of some Quercus species that were not represented in the collection at Iturraran Botanical Garden. 

By Audrey Denvir |
Feb 16, 2018

The Oaks of the Americas Conservation Network (OACN) is an interdisciplinary consortium of oak experts from universities, botanic gardens, arboreta, conservation NGOs, and industry and government agencies aiming to address the research and conservation needs for oaks in the Western Hemisphere. In the short time since its founding in 2016, OACN has been able to make important progress on a number of projects and initiatives focused on oaks in the Americas. Here is a review of some of the work OACN has completed in 2017:

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