The Natural History of Plants Their Forms Growth Reproduction And Distributi
The Natural History of Plants Their Forms Growth Reproduction And Distributi
Anton Kerner Von Marilaun
The book The Natural History of Plants Their Forms Growth Reproduction And Distributi was written by author Anton Kerner Von Marilaun Here you can read free online of The Natural History of Plants Their Forms Growth Reproduction And Distributi book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is The Natural History of Plants Their Forms Growth Reproduction And Distributi a good or bad book?
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As a matter of fact, the salt observed on the leaves and stems of Frankenia, Reaumwria, Hypericopsis persica, and a few species of Tamarix and Statice, is produced from the substance of the leaves. It is excreted in just the same way as the crust of lime, above described, is from the leaves of saxifrages. To the naked eye the surfaces of the leaves in all the plants enumerated have a punctate appearance. On closer inspection, it is evident that, corresponding to each dot, there is a little cavi...ty, the deepest part of which is constructed of cells with extremely delicate external walls. In quite young leaves only a single thin- walled cell of the kind is to be seen at the bottom of each shallow depression. But this divides, and, by the time the leaf is full-grown, from two to four cells are seen to have arisen by division of the one cell. Stomata are, in addition, intercalated in the membrane in the neighbourhood of these thin- walled cells, and, in the rainy season, when there is no lack of water in the habitats of the plants in question, a watery juice, containing a large amount of salts in solution, exudes from these stomata.
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