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Editor's Picks

Past IOS President Allen Coombes, Curator of Scientific Collections at Puebla University Botanic Garden, discusses leaf variability in Quercus ceirpes (still image from the documentary)
"Oaks: the Backbone of Mexico" – New Documentary Film
A new documentary by Maricela Rodríguez Acosta
Website Editor | Feb 17, 2026
Quercus miyagii acorn and dried leaves
In Search of Quercus miyagii: A Field Report from Okinawa
A rare oak endemic to the Ryukyu Islands of Japan
Elion Jam | Feb 16, 2026
A moss-covered oak (Quercus orocantabrica) in Mata de Albergaria, Peneda-Gerês National Park, Portugal © Amit Zoran
Amit Zohran's "Oakollective"
Steve Potter reviews a new book that features oaks
Steve Potter | Feb 11, 2026

Plant Focus

Quercus canariensis in Cornwall Park, Epsom, Auckland, New Zealand, the champion specimen in New Zealand, planted in the 1920s, 27.2 m tall with a trunk diameter of 209 cm (G. Collett pers. comm. 2026) © Gerald Collett
Species Spotlight: Quercus canariensis Willd.
Antonio Lambe shares his views on this threatened oak native to Iberia and North Africa
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IOS Webinar #7: Regeneration of Quercus macdougallii in Sierra de Juárez and the Oaks of Martha's Vineyard and Polly Hill Arboretum

Event Date: 
Wednesday, 19 February 2025

The IOS is pleased to announce our next virtual event, again co-hosted with the Global Conservation Consortium for Oak (GCCO), which will take place over Zoom at 10 am US Central Time on February 19, 2025. 

In this webinar we will first hear from Cecilia Alfonso Corrado, who will present a talk entitled “Population structure and regeneration of Quercus macdougallii throughout its distribution range in Sierra Juárez, Oaxaca. What is happening with its regeneration?” The presentation will cover work funded by an IOS Oak Conservation and Research Grant.

Collecting Quercus corrugata acorns as part of the Your Neighbors the Oaks project

During the second part of the webinar, Tim Boland, Executive Director, and Emily Ellingson, Curator/Assistant Director at Polly Hill Arboretum, will present an overview of the oaks on Martha's Vineyard and the conservation work carried out at the Arboretum. (You can learn more about Polly Hill Arboretum in articles in the latest International Dendrology Society Yearbook here and in the IOS Journal here.) Following the presentations there will be Q&A.

Quercus velutina at Polly Hill Arboretum

IOS members can register for the event here.

Once registered, you will receive a confirmation email with the Zoom link and an invite you can add to your calendar. 

The event is limited to IOS members only (non-members can easily join the IOS in order to participate).

We look forward to you joining us!

 

Event Category: 
IOS Webinars