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By Website Editor |
Oct 11, 2017

North American oaks have a northern temperate origin and only later colonized Mexico and Central America, according to a new study. 

By Website Editor |
Oct 11, 2017

Our German speaking members will be interested to learn that a new book on giant oaks in Germany was published in September 2017: Riesige Eichen: Baumpersönlichkeiten und ihre Geschichten (Giant Oaks: Tree personalities and their stories). 

By Website Editor |
Oct 9, 2017

Bernard de La Rochefoucauld, long-time IOS member with his wife Brigitte, founder of l’Arboretum des Grandes Bruyères, died July 18, 2017, shortly before his 95th birthday.

By Charles Snyers ... |
Oct 9, 2017

The International Oak Society celebrates its 25th anniversary at Starhill Forest Arboretum.

By Audrey Denvir |
Oct 8, 2017

The Morton Arboretum and the Botanic Garden at the Benemérita Universidad Autónoma de Puebla hosted a Rare Mexican Oak Taxonomy Workshop, which brought together key stakeholders and experts on Mexican oaks to discuss taxonomy and conservation.

By Diana Jerome |
Oct 3, 2017

One-fourth of the United States’ oak species are now considered of conservation concern, according to data compiled by researchers at The Morton Arboretum for the latest update of the International Union for Conservation of Nature (IUCN) Red List of Threatened Species™. Sixteen species of oaks, all in the southern and western U.S., are now classified as Critically Endangered, Endangered, or Vulnerable on the IUCN Red List, with another four species deemed Near Threatened. 

By Charles Snyers ... |
Sep 22, 2017

This article is an account of the oak field trip organized by Michael Meléndrez in New Mexico (and a bit of Arizona) in August 2017. 

By Roderick Cameron |
Aug 26, 2017

There are more ancient oaks in England than in all of continental Europe. How is that possible? One would expect to find the reasons in aspects of climate or soil, but Aljos Farjon has come up with a different answer: it is humans and in particular privileged hunters, rather than the environment, that are responsible.

By Roderick Cameron |
Aug 19, 2017

ArbNet is an interactive community of arboreta, sponsored and coordinated by The Morton Arboretum in cooperation with the American Public Gardens Association and Botanic Gardens Conservation International. Its Arboretum Accreditation Program recognizes arboreta at various levels of development and capacity, based on an arboretum’s collections and curation, education and public programming, scientific research and conservation initiatives, governance, and staff or volunteer support.

By Roderick Cameron |
Aug 19, 2017

As we celebrate 25 years of the IOS, we take a look at oaks that have an association with silver. In a Species Spotlight Joeri Strijk describes Quercus argentata (the epithet derives from the Latin word for silver: argentum) and below are three well-known cultivars with silver associations.

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