Cauline Xylem Strands (IMAGE)

Chinese Academy of Sciences Headquarters

Cauline Xylem Strands

Caption

This is the transverse plane of a trunk from the Upper Devonian of Xinjiang. Note at least 33 cauline xylem strands forming a double cylinder, with some in the process of dividing. Letters indicate the different slices; numbers indicate the cauline strands.

Credit

Image by XU Honghe

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