Vascular Plant

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Related to Tracheobionta: tracheophyte
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Vascular Plant

 

a plant whose organs contain vessels or tracheids, which conduct water and dissolved mineral salts, and sieve tubes, which conduct organic matter. Vascular plants include the Psilotophyta, Lycopodiophyta, Equisetopsida, Pterido-phyta, Gymnospermae, and Angiospermae, that is, all higher plants except mosses and liverworts. In these exceptions, the overall reduction of the sporophyte is also reflected in the disappearance of the conducting system typical of higher plants. In certain older plant classifications, a special taxonomic group of cryptogamic vascular plants was distinguished; it included the Psilotophyta, Lycopodiophyta, Equisetopsida, and Pteridophyta.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.