Manual of the Mosses of Western Pennsylvania (Classic Reprint) PDF Download

Author: Otto Emery Jennings
Publisher:
ISBN: 9781332303847
Category : Science
Languages : en
Pages : 438

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Book Description
Excerpt from Manual of the Mosses of Western Pennsylvania The aim in the preparation of this Manual has been to make it a practical handbook applying particularly to the region of Western Pennsylvania and embodying all that is at present known regarding the occurrence and distribution of mosses within that area. As a matter of fact, the Manual will be found to apply also to the adjacent regions of central Pennsylvania, extreme southwestern New York, eastern Ohio, and northern West Virginia. When the present writer took charge of the botanical collections in the Carnegie Museum in 1904 he found that the Herbarium, aside from certain specimens collected by Mr. D. A. Burnett in McKean County, a few years previously, contained but little to represent the rich flora of mosses and liverworts to be expected in the western end of Pennsylvania. One of the aims at the Herbarium of the Carnegie Museum has been to assemble a very complete and comprehensive collection of all the plants to be found in the general region in which Pittsburgh is situated, and, in the prosecution of this work, the writer has been enabled to visit all of the counties in the western half of Pennsylvania and also adjacent portions of Ohio and West Virginia. Certain localities in this general region have been made the subject of detailed ecologic and systematic study and collection - particularly the peninsula of Presque Isle, near Erie, Pennsylvania; the extensive Pymatuning Swamp in Crawford County, Pennsylvania; the mountainous region in the vicinity of Ohio Pyle, Fayette County; and the larger portion of Allegheny County, especially in the vicinity of Pittsburgh. From these and other localities visited extensive collections of mosses have been made and the amount and representative nature of the herbarium material thus available for study have become such that it has been deemed advisable to prepare a treatise embodying the results of the work accomplished, thus placing within the reach of other students of the mosses within the region a convenient means of identifying and checking up their own collections. It is hoped that with all its faults this Manual may be to some extent the means of stimulating bryologicai study in a region of whose mosses there is yet much to be learned. In the preparation of this Manual the author has taken as the taxonomic standard the monumental work of Warnstorf, Ruhland, and Brotherus, brought to completion in 1909, in Engler Prantl's "Die Natuerliche Pflanzenfamilien," Teil I, Abteilung III. 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.