any of a former subkingdom (Thallobionta) of nonvascular plantlike organisms showing no clear distinction of roots, stem, or leaves and not producing flowers or seeds: it included the fungi, lichens, and most algae
Origin of thallophytefrom Classical Greek thallos, young shoot (see thallium) + -phyte
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.
- 1994, Pat E. Rasmussen, Chapter IV.5: Mercury in Vegetation of the Precambrian Shield, Carl J. Watras, John W. Huckabee (editors), Mercury Pollution: Integration and Synthesis, page 422,
- In general, the usefulness of the thallophytes as Hg bioindicators was limited by their sporadic occurrence in the forest environment. Because of the importance of the thallophytes as components of the food chain, however, several samples from different groups (summarized in Table 2) were collected for comparison with values reported in the literature.
- 1999, R. G. Hermann, The Chloroplast: Part of the Integrated Genetic System of the Plant Cell, Joan H. Argyroudi-Akoyunoglou, Horst Senger (editors), The Chloroplast: From Molecular Biology to Biotechnology, page 66,
- Fossile[sic] records along with molecular, cytological and morphological phylogenetic work favour a single origin of land plants from charophycean thallophytes, and indicate that several major lineages of vascular plants had evolved more than 400 million years ago.
From thallus +"Ž -phyte.