Flora of Lancaster County (Classic Reprint): Being Descriptions of the Seed-Plants Growing Naturally in Lancaster County, Pennsylvania: Being ... County, Pennsylvania (Classic Reprint) - Softcover

Small, John Kunkel

Softcover

ISBN 10: 1332783155 ISBN 13: 9781332783151

Verlag: Forgotten Books, 2018

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Excerpt from Flora of Lancaster County: Being Descriptions of the Seed-Plants Growing Naturally in Lancaster County, Pennsylvania

The list referred to above forms the basis of the present flora. Numerous additional species have been collected in the county by the authors of this volume and by their many associates and correspondents. Specimens of these species have been widely distributed, but the more complete sets occur in the herbarium of the new'york Botanical Garden, the herbarium of Franklin and Marshall College, the herbarium of J. J. Carter, the herbarium of the Field Museum of Natural History, the her barium of A. A. Heller, and the herbarium of the Academy of Natural Sciences of Philadelphia. All records of species on the following pages are based on specimens collected in the county.

Lancaster County comprises almost 1000 square miles. Its extreme width, east and west is 47 miles, its extreme length, north and south, 41 miles. It lies southeast of the Appalachian Mountain System. There are no considerable altitudes attained by its hills, but the surface is quite diversified. Rolling hills and winding streams are numerous. The latter flow, without exception, either directly or indirectly into the Susquehanna River. The Susquehanna runs along the western boundary Of the county for a distance of more than 40 miles, and for over half of this distance it passes through a most picturesque canon with steep sides and wild lateral branches. This cahon has a southern exposure, and plants of a typically more southern flora have here made themselves at home. On the other hand, plants of a typically more northern flora are found in the cool Sphagnum swamps among the hills of both the northern and the southern parts of the county. These two somewhat extraneous elements, together with the plants typical Of the greater part of our area and the contiguous territory, comprise a flora of more than ordinary interest and diversity.

The county is divided by its main geological formations into three topographical or geographical belts or zones. They are: (1) a northern belt of sandstones and shales, (2) a middle belt of limestones, and (3) a southern belt of schists. On the one hand, all three belts contain trap-dikes or outcrops of trap rock. On the other, the sandstones and shales are uninterrupted, except for a bay of limestone prolonged northward from the middle belt; the uniformity of the limestones is broken mainly by several small outcrops of quartzite, while the schists contain some small projections of limestone at the northern edge and several outcrops of serpentine at the southern end.

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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.

Reseña del editor:

Excerpt from Flora of Lancaster County: Being Descriptions of the Seed-Plants Growing Naturally in Lancaster County, Pennsylvania

This handbook presents short descriptions of the seed-plants growing naturally in Lancaster County, Pennsylvania, together with statements of the habitats and distribution of the species, and also their flowering sea sons. Analytical keys, formed by contrasting diagnostic characters, pre cede the descriptions of the families, genera, and species, and a general key to the orders precedes the descriptive flora.

The region covered by this flora has been the scene of almost continuous botanical exploration and study for nearly a century and a half, definitely beginning with the observations of Gotthilf Heinrich Ernst Muhlenberg at Lancaster in the year 1780. However, only one authentic list1 of the flowering plants known to grow naturally in the county has been published. In the preface to this catalogue the author says: The following catalogue is based upon the results of explorations made during a residence in the city of Lancaster between the years 1853 and 1866. All the plants contained in it were seen and examined by the author, with the single exception of Quercus phellos, L.,2 and specimens of the rarer species, about which there might be any question, are at hand for reference in his own herbarium3 and in the herbaria of the Linnaean Society and the State Normal School at Millersville.

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.

Über diese Auflage

• Verlag: Forgotten Books
• Erscheinungsdatum: 2018
• ISBN 10: 1332783155
• ISBN 13: 9781332783151
• Einband: Tapa blanda
• Anzahl der Seiten: 357