Relation of Plants to Environment (Or Plant Ecology): Outlines of a Course ...
Relation of Plants to Environment (Or Plant Ecology): Outlines of a Course ...
Atkinson George Francis
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Chart the area occupied by different individual formations and name dominant species in each. d. If there are layers as in a forest or heath deter- mine the prominent ones. e. On slope determine zonal formations. f. On shores of lakes or ponds with bowl-shaped basin determine the succession of forms. 1st, Littoral zone of semiaquatics. 1. Typha (or equivalent). 2. Bulrushes (or equivalent). 3. Arrow leaf (or equivalent). 2nd, Floating zone. 4. Pond lilies (or equivalent). 3rd, Submerged zone. 5.... Pondweeds (or equivalent). 6. Bass weed (or equivalent). 3. Note prominent physical characteristics of soil. 4. Note exposure to sun, wind, etc. 57 Digitized by VjOOQIC Secondary or subordinate species in a formation. 1. Species which are dominant in other similar places but subordinate here. 2. Species characteristic of the locality but never so abun- dant as to dominate the formation. 3. Species which are infiltrated in with the dominant vege- tation form and mark this area off from others. 4.
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