thallophyte

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thal·lo·phyte

(thal'ō-fīt),
A member of the division Thallophyta.
Farlex Partner Medical Dictionary © Farlex 2012

thallophyte

(thăl′ə-fīt′)
n.
Any of a group of organisms, including the algae, fungi, and lichens, that show no differentiation into stem, root, or leaf and were formerly regarded as constituting a subkingdom of the plant kingdom.

thal′lo·phyt′ic (-fĭt′ĭk) adj.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

thallophyte

any plant of the group (or former division) Thallophyta, containing the most primative types of plants characterized by the possession of a THALLUS. They vary in size from unicellular types to giant seaweeds up to 75 m in length. The group includes Algae, Bacteria, Fungi, slime fungi (Myxomycetes) and lichens. The Thallophyta clearly have several different evolutionary origins and the term is not used in modern systematics.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
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