Read Papers on Botany, Vol. 25 (Classic Reprint)

Papers on Botany, Vol. 25 (Classic Reprint)

Arlow Burdette Stout

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Description:Excerpt from Papers on Botany, Vol. 25 People who think of the matter at all often think of the ferns as being a more conspicuous feature in the flora of the tropics than in that of temperate regions, but whether this is really true or not depends very much upon local conditions. On most of the Bahama Islands, where the soil is dry and rocky and on the dry southern slopes of the larger West Indian islands, such as Jamaica and Porto Rico, where the rainfall is light, as compared with the amount of evaporation under the scorching rays of the tropical sunshine, the ferns are usually rare and inconspicuous. In such places, as also in Bermuda, which is not really tropical, the ferns are found chiefly in shaded sink-holes and caverns, where moisture is more readily conserved. But in the more humid parts of the tropics, as on the northern slopes of the mountains of Jamaica and Porto Rico, where it rains more or less on nearly every day in the year and where the annual rainfall amounts to 100 or sometimes 200 inches, ferns are often found in great luxuriance and abundance. The late Professor Underwood of Columbia University, one of the most renowned of the American students of ferns, has said that in walking a distance of three miles on one of the paths in the rain forests of the Blue Mountains of Jamaica one can gather as many as one hundred different kinds of ferns without the trouble of stepping from the path. The Danish fern authority Christensen, in 1913, recognized 7,411 species of ferns in the world as a whole. Of these only a few, perhaps 30, have been found in the Arctic Zone; only about 70 in all of Europe, and about 300, including the fern allies, within the continental boundaries of the United States. It is in the tropics and in the South Temperate Zone that the species are most numerous. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.We have made it easy for you to find a PDF Ebooks without any digging. And by having access to our ebooks online or by storing it on your computer, you have convenient answers with Papers on Botany, Vol. 25 (Classic Reprint). To get started finding Papers on Botany, Vol. 25 (Classic Reprint), you are right to find our website which has a comprehensive collection of manuals listed.
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Description: Excerpt from Papers on Botany, Vol. 25 People who think of the matter at all often think of the ferns as being a more conspicuous feature in the flora of the tropics than in that of temperate regions, but whether this is really true or not depends very much upon local conditions. On most of the Bahama Islands, where the soil is dry and rocky and on the dry southern slopes of the larger West Indian islands, such as Jamaica and Porto Rico, where the rainfall is light, as compared with the amount of evaporation under the scorching rays of the tropical sunshine, the ferns are usually rare and inconspicuous. In such places, as also in Bermuda, which is not really tropical, the ferns are found chiefly in shaded sink-holes and caverns, where moisture is more readily conserved. But in the more humid parts of the tropics, as on the northern slopes of the mountains of Jamaica and Porto Rico, where it rains more or less on nearly every day in the year and where the annual rainfall amounts to 100 or sometimes 200 inches, ferns are often found in great luxuriance and abundance. The late Professor Underwood of Columbia University, one of the most renowned of the American students of ferns, has said that in walking a distance of three miles on one of the paths in the rain forests of the Blue Mountains of Jamaica one can gather as many as one hundred different kinds of ferns without the trouble of stepping from the path. The Danish fern authority Christensen, in 1913, recognized 7,411 species of ferns in the world as a whole. Of these only a few, perhaps 30, have been found in the Arctic Zone; only about 70 in all of Europe, and about 300, including the fern allies, within the continental boundaries of the United States. It is in the tropics and in the South Temperate Zone that the species are most numerous. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.We have made it easy for you to find a PDF Ebooks without any digging. And by having access to our ebooks online or by storing it on your computer, you have convenient answers with Papers on Botany, Vol. 25 (Classic Reprint). To get started finding Papers on Botany, Vol. 25 (Classic Reprint), you are right to find our website which has a comprehensive collection of manuals listed.
Our library is the biggest of these that have literally hundreds of thousands of different products represented.

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Papers on Botany, Vol. 25 (Classic Reprint)

Papers on Botany, Vol. 25 (Classic Reprint)

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