![Cross section of a pine needle (genus Pinus), Pinaceae, seen under a microscope with counterstaining. - SuperStock Cross section of a pine needle (genus Pinus), Pinaceae, seen under a microscope with counterstaining. - SuperStock](https://cdn.superstock.com/1788/Comp/1788-111173096.webp)
Cross section of a pine needle (genus Pinus), Pinaceae, seen under a microscope with counterstaining. - SuperStock
![Century 21 Exposition (Seattle, Wash.), design for the Space Needle, cross section of restaurant - Architecture of the Pacific Northwest - University of Washington Digital Collections Century 21 Exposition (Seattle, Wash.), design for the Space Needle, cross section of restaurant - Architecture of the Pacific Northwest - University of Washington Digital Collections](https://digitalcollections.lib.washington.edu/digital/iiif/ac/1002/full/full/0/default.jpg)
Century 21 Exposition (Seattle, Wash.), design for the Space Needle, cross section of restaurant - Architecture of the Pacific Northwest - University of Washington Digital Collections
![Pinus sylvestris (pine needle) cross section | 2017 Photomicrography Competition | Nikon's Small World Pinus sylvestris (pine needle) cross section | 2017 Photomicrography Competition | Nikon's Small World](https://www.nikonsmallworld.com/images/photos/2017/_photo1600/IoD-3.jpg)
Pinus sylvestris (pine needle) cross section | 2017 Photomicrography Competition | Nikon's Small World
![Phil Gates on Twitter: "Cross section of a pine needle. The 'holes' around the edge are the ducts that secrete the fragrant resin #trees #botany #microscopy #conifers https://t.co/E0yMkuqb1A" / Twitter Phil Gates on Twitter: "Cross section of a pine needle. The 'holes' around the edge are the ducts that secrete the fragrant resin #trees #botany #microscopy #conifers https://t.co/E0yMkuqb1A" / Twitter](https://pbs.twimg.com/media/DVQx2UpW0AIVy2A.jpg)
Phil Gates on Twitter: "Cross section of a pine needle. The 'holes' around the edge are the ducts that secrete the fragrant resin #trees #botany #microscopy #conifers https://t.co/E0yMkuqb1A" / Twitter
![File:Needles of Pinus taiwanensis (Taiwan Red Pine) - Cross section microscopic image.jpg - Wikimedia Commons File:Needles of Pinus taiwanensis (Taiwan Red Pine) - Cross section microscopic image.jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/c/c8/Needles_of_Pinus_taiwanensis_%28Taiwan_Red_Pine%29_-_Cross_section_microscopic_image.jpg)
File:Needles of Pinus taiwanensis (Taiwan Red Pine) - Cross section microscopic image.jpg - Wikimedia Commons
![Scots pine needle cross-section photographed using a light microscope... | Download Scientific Diagram Scots pine needle cross-section photographed using a light microscope... | Download Scientific Diagram](https://www.researchgate.net/publication/327578741/figure/fig1/AS:960238194802688@1605950034087/Scots-pine-needle-cross-section-photographed-using-a-light-microscope-with-UV-excitation.jpg)