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.
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By Diana Jerome |
Oct 3, 2017
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
By Roderick Cameron |
Aug 19, 2017
An acorn from a specimen of Quercus insignis growing in Hackfalls Arboretum in New Zealand germinated earlier this year. This is very likely the first time this species has successfully reproduced outside its native habitat—and it has done so in a place about as far as you can get from its home in Mexico and Central America. The seedling sprouted in Eastwoodhill Arboretum, the National Arboretum of New Zealand, and will be planted there in due course.
By Shaun Haddock |
Aug 16, 2017
Twenty-six participants from ten countries arrived to take part in the European celebration of the IOS’s twenty-fifth birthday at Dušan Plaček’s Quercetum near Podĕbrady in the Czech Republic.
By Joeri Strijk |
Aug 16, 2017
Quercus argentata is an evergreen tropical oak native to the islands of Borneo (absent in Brunei), Sumatra, and Western Java, as well as to Peninsular Malaysia.
By Roderick Cameron |
Jul 16, 2017
The subject of the latest addition to our Oak Artist series is Harriet Blum, whose work straddles the media of photography and painting: her idiosyncratic technique involves infrared film photography and hand-coloring with transparent oils and pencils.
By Website Editor |
Jun 15, 2017
Earl Cully, 90, of Jacksonville, Illinois passed away on Wednesday, May 31, 2017 at his home. Earl was a long-time member of the International Oak Society and participated in several of our conferences. Early in Earl’s life he developed a passion for trees and he was nurtured by several mentors including horticulture professor J.C. McDaniel of the University of Illinois, who shared his knowledge and ability to “see” and evaluate woody plants
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