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Sigillaria

Sigillaria (sĭjĭlârˈēə) [key], genus of fossil club moss allied to Lepidodendron, abundant in the Carboniferous period. The thick trunk was rarely branched and was covered for several feet from the top with erect leaves that were larger than those of Lepidodendron ; the leaf scars were in vertical rows. The fossilized root stocks of Sigillaria, as of Lepidodendron, are known as stigmaria. Club mosses are classified in the division Lycopodiophyta.

The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.

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