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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

Earl Cully (1927 - 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. Earl mentored many others himself, beginning with teaching Guy Sternberg how to graft in 1970 and later bringing younger people such as Josh Nadler and Aaron Atwood under his wing.

EarlCully
Earl Cully

Earl formed a wholesale deciduous seedling nursery in the 1960s. He selected, patented, and trademarked many trees, including his best-known cultivar Heritage® river birch. In the early 1980s, Earl founded Heritage Trees, Inc., a company that selected and introduced cultivars of shade trees to the nursery trade. Earl’s hybrid oak selections include Heritage®, Regal Prince®, and Kindred Spirit®. Earl’s passion for trees and people will leave a growing legacy of superior cultivars for the landscape and nursery industry and a love for trees in the lives of those that he mentored. 

Qxwarei
Quercus ×warei 'Nadler' Kindred Spirit® in Starhill Forest Arboretum

Guy Sternberg

 

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