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If you have comments or suggestions for improvements or wish to share images or PDFs, please e-mail: xylem @ ncsu.edu [remove spaces between @ and ncsu..

Support InsideWood by buying the 2025 Calendar "Plants With A Past. Inside Fossil Wood" It features photomicrographs of different plant groups highlighting their distinctive features and give dates for Arbor Days around the world.

InsideWood exists because of the NC State University Libraries' support. If your work benefits from using InsideWood, please help support the library. Any amount is welcome. You may use their secure online payment system to make a tax deductible charitable donation to the Friends of the Library. Select the Honor, Memory or Support Information button and type in InsideWood as the honoree.

We welcome help in improving the site and database. There are three ways to participate in the InsideWood project:

Contribute Data: Wood anatomical descriptions for species or groups not yet in the InsideWood database are welcome. We especially welcome publications describing woods of critical or vulnerable groups, as well as underrepresented taxa. Please send reprints, if available, or complete a IAWA Modern Wood Data Sheet (Excel format) or IAWA Fossil Wood Data Sheet (Excel format) of the published descriptions. If you have a publication that would provide additional data for the Inside Wood descriptions (e.g., vessel element, fiber length, or crystal location), please submit changes or additions, with accompanying references.

Contribute Corrections: If you notice errors in either anatomical descriptions or names of taxa, please let us know, and provide documentation (references) we can use to correct those errors.

Contribute Images: If you have unpublished micrographs or published micrographs (digital or film) for which you hold copyright and that represent vouchered modern or fossil wood specimens, contact us about submission. We are able to scan various media (negatives of varying sizes, color transparencies, and photographs). Corresponding anatomical descriptions are welcome, but not necessary. All images are linked to metadata and the authors of the images are fully credited.