Enation


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The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Enation

 

a scale that is an outgrowth from the surface of the leaf petioles of certain ferns. The formation of enations is similar to the development of small leaves in certain types of higher plants (for example, club mosses) in the process of evolution. Such leaves were formed as flattened photosynthesizing outgrowths of the stem cortex.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Gleason introduced the concepts of agnation and enation in his 1963 textbook, Linguistics and English Grammar, which belongs to a generation of "general-structuralist" textbooks (assembling the insights which had been achieved in the major schools of structuralism), which appeared in North America and Europe in the period 1955-1965, on the verge of the emergence of more specific (post)structuralist linguistic schools, especially in Europe, and just before the rise of Chomskyan transformational-generative grammar in the US.
The appendages, or phylloids, were considered to be enations, comparable to the leaves of Lycopodium.
Enation features Jackson's brother, Richard Lee, on percussion.
The Warwick-based charity's seventh quarterly eNation assessment of websites in selected sectors has awarded the Labour's website a four-star rating - the first time that any site featured in the survey series has gained such a high score.
Pennell had lower scores for virus infection, mainly pea enation mosaic, when compared with Mason.
Among the virus diseases, Dolichos enation mosaic, leaf roll and Dolichos yellow mosaic disease have been reported to occur in India under field condition (Capoor and Verma, 1950).
Powdery mildew resistance is easy to come by, but if you live in the Northwest also look for resistance to Pea Enation Mosaic Virus, available in 'Cascadia' snap pea, 'Oregon Giant' snow pea and many others.
The fifth in a series of quarterly eNation reports on the top websites in selected industry sectors, the report reveals that, of the 20 clubs checked, using a series of both manual checks and automated tools, only Manchester United's alternative 'accessible' website achieves more than a one star rating.
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The disease is characterized by upward or downward curling, small and large vein thickening, and finally leaf enation (an outgrowth on the lower side of the leaves).
The third in a series of quarterly eNation reports on the top websites in selected industry sectors, its survey reveals that, of the nine online banks audited and checked for accessibility using a series of both manual checks and automated tools, only NatWest satisfied the minimum criteria required to facilitate access for users with a vision impairment, dyslexia or those with a physical disability making mouse use difficult.
pisi), pea enation mosaic virus, PSbMV, and powdery mildew (caused by Erysiphe polygoni DC).