¹ Source: wiktionary.com
Definition of Lichens
1. lichen [v] - See also: lichen
Medical Definition of Lichens
1. Thallophytic plants formed by mutualistic combination of an alga and a fungus, the algal component being a green or blue-green alga, and the fungal usually an ascomycete. (12 Dec 1998)
Lexicographical Neighbors of Lichens
Literary usage of Lichens
Below you will find example usage of this term as found in modern and/or classical literature:
1. The Encyclopedia Americana: A Library of Universal Knowledge (1919)
"lichens are distributed over the entire earth; they are least numerous in the
... In the tropical and temperate zones, the greatest wealth of lichens is ..."
2. An Almanack for the Year of Our Lord by Joseph Whitaker (1869)
"Another characteristic of most lichens was their very slow growth, ... It followed
that large plants of such lichens must be of very great age, he said. ..."
3. The Natural History of Plants: Their Forms, Growth, Reproduction, and by Anton Kerner von Marilaun (1902)
"The Fruticose lichens are distinguished as a third group in which the thallus
... With these are associated the Beard lichens, which hang down from the bark ..."
4. The Encyclopædia Britannica: A Dictionary of Arts, Sciences, Literature and by Hugh Chisholm (1911)
"It is apparent that in many cases lichens are quite indifferent to the substrata
on which they occur, whence we infer that the preference of several for ..."
5. Proceedings of the Royal Society of Victoria by Royal Society of Victoria (1893)
"(a) The cortical layer, which occurs on the upper surface of most, and also on
the under surface of many lichens, varies in composition, hut is generally ..."
6. The American Naturalist by American Society of Naturalists, Essex Institute (1897)
"THE POLYPHYLETIC DISPOSITION OF lichens.1 BY FREDERIC E. CLEMENTS. The present
trend of thought upon the morphology and disposition of the lichens must be ..."
7. The Microscope and Its Revelations by William Benjamin Carpenter (1883)
"lichens.—The Microscopic study of this group has latterly acquired a new interest
for the Botanist, from the remarkable discovery announced in its complete ..."
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