The Principles of Botany, As Exemplified in the Phanerogamia
The book The Principles of Botany, As Exemplified in the Phanerogamia was written by author Coultas, Harland, D. 1877 Here you can read free online of The Principles of Botany, As Exemplified in the Phanerogamia book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is The Principles of Botany, As Exemplified in the Phanerogamia a good or bad book?
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It is a diagram of the flower of the snow-flake, (Leucojum), a monocotyledonous plant, having three sepals, three petals, six stamens in two alternating rows, and three carpels. This flower is symmetrical, complete, regular, and trimerous. The number of extra verticils which are developed is some- times very considerable, as in the Cactus and white water-lily, (Nymphsea.) In such circumstances it is easy to perceive that the disposition by verticils is only apparent and that the floral leaves a...re arranged in a spiral about the axis of growth. The spiral law not only produces the orderly distribution of the leaves about the stem, but ensures the same symmetry in the floral organs, producing that regular alternation of the parts of each verticil, and in these plants a very perceptible spiral arrangement of them. The parts of the florcd organs may have been increased hy 176 COMPOUND ORGANS OF PLANTS. deduplication or chorizatian, {xafi^i^, I separate,) that is, by the splitting of the organs during their development.
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