Gymnocladus dioicus: High-Resolution Scans of Leaves (IFML Dataset 1104)

Abstract: This dataset contains high-resolution flatbed scans of Gymnocladus dioicus (Kentucky Coffeetree) collected in Story County, Iowa, USA. These images were generated as part of the Iowa Forestry Media Library (IFML). Specimen Details Taxon: Gymnocladus dioicus Family: Fabaceae Common Name: Kentucky Coffeetree Specimen Type: Leaf (Adaxial & Abaxial) Collection Date: 2025 Location: Story County, Iowa, USA Data Structure To facilitate both scientific analysis and general use, this dataset is organized into two distinct packages: Archival Package (.zip): Contains the raw, uncompressed 48-bit TIFF masters captured at 1200 dpi. These files are cropped to the specimen boundaries and contain no color grading, post-processing, or physical scale bars. Recommended for high-magnification analysis of venation and pubescence. Access Package (.zip): Contains processed, color-corrected images. This includes PNGs with backgrounds removed (transparent) and high-quality JPEGs sharpened for immediate use in presentations, teaching materials, and web applications. Technical Specifications Scanner: Epson Expression 13000XL Resolution: 1200 dpi Color Depth: 48-bit Color (TIFF) / 24-bit (JPEG/PNG) Processing: Archival TIFFs are raw crops. Access files were processed in Adobe Photoshop and Lightroom using a standardized white balance and editing script to ensure consistency across the library. Citation & Attribution Under the Creative Commons Attribution 4.0 International license (CC-BY 4.0), you are free to use these images but must provide appropriate credit. For Academic Research (Bibliography): Willard, Eli. (2026). Iowa Forestry Media Library: Gymnocladus dioicus Dataset 1104. Zenodo. For Web, Social Media, or Presentations (Caption/Credit Line): "Image courtesy of Eli Willard / Iowa Forestry Media Library (CC-BY 4.0)"