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Dr. Michael Avishai (1935-2018)

michael_avishai_1.jpg

Dr. Michael Avishai, a leading oak expert, botanist, and horticulturist in Israel and worldwide, passed away last December, leaving a huge emptiness and sadness in the Jerusalem Botanical Gardens and beyond.

Another Successful Silent Auction at Davis

The Silent Auction held at the IOS Conference in Davis, CA was another great success. The total amount raised surpassed USD 2,600 and an additional USD 1,000 was received as a private donation to the fund.

Ed Holm (1930 - 2018)

Ed Holm lived in Redwood City, California and was born on 4 September 1930 and died 1 January 2018.

Michel Timacheff (Cannes, 1959 - Waterloo, 2018)

There are meetings that prove to be crucial, primordial encounters that mark our lives. My meeting with Michel Timacheff, an afternoon of October 1999 in Vallauris, was one of them.

Bernard de La Rochefoucauld (1922-2017)

Comte de la Rochefoucauld, understandably proud of his Franklinia

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.

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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

Society News

Dr. Michael Avishai (1935-2018)

michael_avishai_1.jpg

Dr. Michael Avishai, a leading oak expert, botanist, and horticulturist in Israel and worldwide, passed away last December, leaving a huge emptiness and sadness in the Jerusalem Botanical Gardens and beyond.

Another Successful Silent Auction at Davis

The Silent Auction held at the IOS Conference in Davis, CA was another great success. The total amount raised surpassed USD 2,600 and an additional USD 1,000 was received as a private donation to the fund.

Ed Holm (1930 - 2018)

Ed Holm lived in Redwood City, California and was born on 4 September 1930 and died 1 January 2018.

Michel Timacheff (Cannes, 1959 - Waterloo, 2018)

There are meetings that prove to be crucial, primordial encounters that mark our lives. My meeting with Michel Timacheff, an afternoon of October 1999 in Vallauris, was one of them.

Bernard de La Rochefoucauld (1922-2017)

Comte de la Rochefoucauld, understandably proud of his Franklinia

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.

Pages

The International Oak Society acknowledges the generous support of the following institutions:

Supporting Institutional Members

 

Standard Institutional Members

Rice University
San Diego Botanic Garden logo
San Diego Zoo Wildlife Alliance logo
South Carolina Botanical Garden

 

The Huntington
The John Fairey Garden