How to Know the Ferns

How to Know the FernsIn its lowest forms vegetable life is a very simple affair. The minute...
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SKU: gb-45251-ebook
Product Type: Books
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Author: Bastin, S. Leonard
Format: eBook
Language: English
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How to Know the Ferns

How to Know the Ferns

€6,31

How to Know the Ferns

€6,31
Author: Bastin, S. Leonard
Format: eBook
Language: English

How to Know the Ferns

In its lowest forms vegetable life is a very simple affair. The minute Alg which clothe damp surfaces with a green film show few indeed of the characteristics with which we are familiar in the higher plants. Certainly they are green, proving that the tiny cells of which they are composed contain the wonderful colouring matterchlorophyll, by means of which they are able to assimilate carbon from the carbonic acid of the air. There is, however, in these lowly plants no sign of a stem, a leaf, or a root. As we ascend in the scale of vegetable life we begin to get an increasing number of distinctive characters. In the case of the Mosses we have plants with distinct stems and leaves. But Mosses have no true roots, neither is there any vascular (woody) tissue in their composition. Mounting yet higher in the scale we come to a very important and interesting group of plants usually referred to as the Vascular Cryptogams. In this group are included the Ferns, the Horsetails, and the Club Mosses. [2] In passing, it may be pointed out that the term Cryptogam is a name which was originally given to the flowerless plants by Linnus to indicate that the plan of fertilization was hidden. The name is still retained, but it has lost its meaning in this sense, in that since the introduction of high-power microscopes it is not necessarily more difficult to study the fertilization of the non-flowering plants than it is to watch the process in the kinds which bear blossoms. ......Buy Now (To Read More)

Product details

Ebook Number: 45251
Author: Bastin, S. Leonard
Release Date: Mar 28, 2014
Format: eBook
Language: English

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