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Asteroxylon mackiei: star-shaped xylem

Xylem of Asteroxylon

The star-shaped xylem.
The black line is an offshoot from the xylem leading to a leaf.
Diameter of the 'star' is 2 mms.

Xylem of a young plant

Xylem of a young plant.

Stem with xylem and stamata

Section of a stem with stellate xylem.
To the left two stomata.

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