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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:

By Ryan Russell |
Feb 15, 2018

As Co-Registrar of oak cultivars I think it’s important to periodically remind members about some of the exceptional selections of oaks that are out there in collections and nurseries. In the interest of appealing to a broader group, I thought I would select a cultivar from the Old World and one from the New.

By Website Editor |
Feb 15, 2018

The Botanical Garden of Porto is located on the west side of the city of Porto, on a plateau overlooking the mouth of the Douro River and the Atlantic Ocean. Currently covering 4 hectares, it is part of the grounds of the University of Porto campus and is situated on what was once Quinta do Campo Alegre, a historic estate formerly on the outskirts of Porto. 

By Website Editor |
Feb 14, 2018

Quercus semecarpifolia, commonly known as brown oak, is the main forest-forming evergreen tree species from upper temperate to subalpine regions (2,500–3,300 m) in Western Himalaya.

By Roderick Cameron |
Dec 14, 2017

For this Species Spotlight we train our follow spot on an oak that is quite a star of the quercine scene: Quercus hypoleucoides (stage name: silverleaf oak). 

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.

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