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Plant Associations on Land

Henry S. Conard
The American Midland Naturalist
Vol. 21, No. 1 (Jan., 1939), pp. 1-27
DOI: 10.2307/2420373
Stable URL: http://www.jstor.org/stable/2420373
Page Count: 27
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Plant Associations on Land
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Abstract

1. The procedures and concepts followed by plant ecologists have been greatly influenced by the nature of the communities studied. 2. Distinguished scholars and teachers have largely dominated the thought of pupils and followers in their respective countries. 3. The study of the composition of communities has led to definitions of Associations and Unions, with subdivisions and super-categories. 4. Associations of plants on land are definable entities, susceptible of naming and classifying. 5. Associations extend from simple one-layered communities of lower plants (algae, lichens) to the extremely complex tropical jungles. 6. Unions (one-layered communities) offer fruitful materials for study, within the Association. 7. The goals of Plant Sociology are 1. An understanding of the Order of Nature, 2. Directions for the wisest use of land.

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