Featured this month

Jim Cootes continues his series on the genus Dendrobium with Part 17: Dendrobium section Stachyobium, a widespread section comprising some 44 species ranging in size from miniature to plants with 2-foot canes. Günter Gerlach completes his two-part article on the sex lives of Catasetum and Cycnoches and Stephen Van Kampen-Lewis, Francisco Miranda and Christopher Maupin take us on an adventure in Brazil searching for Cattleya nobilior f. amaliae. Rounding out our features this month is an historical article by Dr. Joseph Arditti on the study of phytoalexins in orchids. These compounds, produced by various plant families following infection by pathogens or colonization by symbionts, such as mycorrhiza help to fend of pathogenic or colonizing fungi - sort of an immune system response in plants.

Rounding out the December 2025 issue

• Tom's Monthly Checklist by Thomas Mirenda
• Questions and Answers by Ron McHatton
• For the Novice - What is a Species? by Sue Bottom
• My Favorite Orchid - Cyrtopodium punctatum by David (Nick) Nickerson
• Collector's Item - Aganisia cyanea by Judith Rapacz-Hasler
• Orchids Illustrated - Habenaria - sensu lato - A Cosmopolitan Tropical and Subtropical Genus by Wesley Higgins and Peggy Alrich
• Spotlight - Cattleya percivaliana by Ron McHatton
• Editorial Board Update - Publication Mentor Program by Daniel Geiger