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The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.
leaves of higher plants that consist of out-growths of the stem (enations). The conducting bundles in microphylls run from the stem without forming leaf gaps (lacunae). Microphylls are characteristic of club mosses, conifers, and Cordaitales.
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.