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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)
A new documentary by Maricela Rodríguez Acosta
Website Editor | Feb 17, 2026
Quercus miyagii acorn and dried leaves
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
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
Antonio Lambe shares his views on this threatened oak native to Iberia and North Africa

Institutional Memberships

IOS logo

 

Starting January 1, 2024, the Board of Directors inaugurated two new Institutional Membership types, which are offered to organizations interested in the study of oaks. Support of the Society from all membership levels helps to fund our Oak Conservation and Research Fund and the production of International Oaks, the IOS Journal.

Standard Institutional Membership: 1-year/$500 or 3-year/$1250

Benefits:

  • Full standard membership benefits for an unlimited number for staff members (online access to all IOS publications and to “member only” resources on the IOS website)
  • Recognition in:
  • 1 printed copy of International Oaks 

Supporting Institutional Membership: 1 year/$750 or 3-year/$2000

Benefits:

  • Same benefits and recognition as for Standard Institutional Membership
  • 3 printed copies of International Oaks 

For more information please contact:
Dan Kostka
IOS Secretary
membership@internationaloaksociety.org