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Picture of the day
Проводящий пучок Pteridium aquilinum.JPG

Amphycribral vascular bundle of a Fern Rhizome Pteridium aquilinum. Big cells with red cell wall are tracheids. They serve in the transport of water. Around the xylem there are xylem parenchyma and phloem cells. A single row layer of small cells (with red content) located circumferentially is endoderm. In the parenchyma there are amyloplasts which store starch granules.
 
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