Manual of the Botany of the Northern United States - Gray, Asa
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CONTENTS Preface Synopsis of the Orders Analytical Key to the Orders Explanation of Abbreviations of Authors' Names Explanation of Signs Flora Phaenogamous or Flowering Plants Dicotyledonous or Exogenous Plants Angiospermous, Polypetalous Gamopetalous Apetalous Gymnospermous Plants Monocotyledonous or Endogenous Plants Cryptogamous or Flowerless Plants Vascular Acrogens, or Pteridophytes Cellular Acrogens, or Bryophytes (Hepaticae) Additions and Corrections Table of Orders Glossary Index Plates, with Explanations This is a reprint of the Sixth Edition.

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CONTENTS Preface Synopsis of the Orders Analytical Key to the Orders Explanation of Abbreviations of Authors' Names Explanation of Signs Flora Phaenogamous or Flowering Plants Dicotyledonous or Exogenous Plants Angiospermous, Polypetalous Gamopetalous Apetalous Gymnospermous Plants Monocotyledonous or Endogenous Plants Cryptogamous or Flowerless Plants Vascular Acrogens, or Pteridophytes Cellular Acrogens, or Bryophytes (Hepaticae) Additions and Corrections Table of Orders Glossary Index Plates, with Explanations This is a reprint of the Sixth Edition.
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Autorenporträt
Asa Gray, who lived from November 18, 1810, to January 30, 1888, is regarded as the most significant American botanist of the 1800s. His Darwiniana was seen as a seminal account of how science and faith did not always have to conflict. Gray insisted that all members of a species have to be genetically related. Additionally, he was adamantly against the concepts of special creation, which prevents evolution, and hybridization within a single generation. Despite the fact that Gray's theistic evolution was directed by a Creator, he was a fervent Darwinist. Throughout his many years as a botany professor at Harvard University, Gray maintained regular correspondence and visits with many of the top natural scientists of the day, including Charles Darwin, who thought highly of him. In addition to visits to the southern and western regions of the United States, Gray made multiple travels to Europe in order to work with prominent European scientists of the day. He also established a wide network of collectors of specimens. Being a prolific writer, he played a significant role in bringing North American plant taxonomy together.