# Pinus heldreichii Den Ouden

- By: Anatoly Mikhaltsov
- Date: 2017-08-26
- Classification: Photograph
- Museum: [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Pinus_heldreichii_Den_Ouden.jpg)
- Rights: [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0)
- Picture: https://upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Pinus_heldreichii_Den_Ouden.jpg/1920px-Pinus_heldreichii_Den_Ouden.jpg
- Who can see it: Teens profiles and older (museums give no ratings; placed by Invisible Network from the museum's own words)

Transverse section of a needle of Pinus heldreichii Den Ouden (= Pinus leucodermis Den Ouden, Geldreich's pine, Bosnian pine). Author's permanent product, author's polychrome coloring of tissues. Panorama of 4 pictures, each of which is the result of a multifocus stacking of 15-20 frames.