: a genus of Triassic fossil plants that is included in Lepidodendrales or isolated in a separate order, has characters in common with the genera Sigillaria and Isoetes, and is marked by an unbranched trunk arising from an enlarged lobulated root-bearing base terminating in a crown of long ligulate leaves, and bearing heterosporous cones at its apex

Word History


New Latin, from pleur- + International Scientific Vocabulary -ome + New Latin -ia

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Dictionary Entries Near Pleuromeia

Cite this Entry

“Pleuromeia.” Dictionary, Merriam-Webster, Accessed 1 Jun. 2023.

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