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Stump of a clubmoss tree at Glasgow

Stigmaria

Stump of a clubmoss tree from the Upper Carboniferous
in the Victoria Park in Glasgow.
The underground parts are called Stigmaria because of the scars
of the appending rootlets
(stigma = scar).

Stigmaria ficoides, underground part of a clubmoss tree with appendages and stigmata.
Ibbenbüren (Germany), Upper Carboniferous
.
Height of the specimen 7 cm.