IOS Tours

Post-Conference Tour: Oaxaca

By Wally Wilkins | December 10, 2025

Six days exploring Oaxaca’s oak diversity, as reported by Wally Wilkins.

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Pre-Conference Tour: Morelia, Guanajuato, Puebla, and Veracruz

By John Leszczynski | December 10, 2025

From Morelia to Oaxaca in the lead-up to the Conference

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IOS Tour of the Carolinas

By Brent Moon | December 13, 2024

A report on the Tour that took place in October

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IOS Tour of California, Part 1: Northern California

By Chris Reynolds | October 30, 2024

From Davis to Los Angeles

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IOS Tour of California, Part 2: Southern California

By John Leszczynski | October 30, 2024

From Los Angeles to the Otay Mountains

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IOS Tour of Oregon, September 2023

By Website Editor | October 19, 2023

An account of the Tour guided by Sean Hogan

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2022 Pre-Conference Tour: Western Texas

By Philip Crim | October 13, 2022

Group at salt flats near Guadalupe Mountains National Park

San Antonio to Las Cruces: oaks and more

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2022 Pre-Conference Tour: New Mexico

By Mark Coggeshall | October 12, 2022

Oaks and other attractions, from Albuquerque to Las Cruces.

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2022 Post-Conference Tour: Arizona

By Wally Wilkins | October 12, 2022

Four days with the oaks of Arizona

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Editor's Picks

Taxonomists Huddle at Harvard

The Harvard University Herbaria hosted a novel Oak Taxonomy...

Jeannine Cavender-Bares | Apr 21, 2026

Argentine Oak Collections through Italian Eyes

Visits to three collections of Quercus in Buenos Aires...

Morgan Santini | Apr 05, 2026

Michel Duhart and Paco Garin at Jardín Botánico Wilson, Costa Rica

In Memoriam: Michel Duhart (1923–2026)

On April 1st, the very day he turned 103, a great friend...

Francisco Garin Garcia | Apr 05, 2026

Plant Focus

Species Spotlight: Quercus orocantabrica Rivas Mart., Penas, T.E.Díaz & Llamas

Roderick Cameron and Carlos Vila-Viçosa give an account of this intriguing species from northwestern Iberia with a complex taxonomic and...