Excerpt from The Ferns (Filicales) Treated Comparatively With a View to Their Natural Classification, Vol. 2: The Eusporangiatae and Other Relatively Primitive Ferns
As a result of simple induction from the observed facts it may be stated generally that simple hairs are a primitive feature, and that branched hairs and in particular flattened scales are an indication of advance from that simple state. Evidence of this advance parallel with other indications of advance in other characters may be found in various phyletic sequences, and this fully substantiates the general correctness of the conclusion thus stated (chapter XI).
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Paperback. Condizione: New. Print on Demand. This book provides insight into the origins and evolution of ferns, a diverse group of plants that have flourished on Earth for over 400 million years. Using comparative biology, the author examines ferns' physical structure, physiology, and genetics. The book focuses on the evolution of ferns from their earliest ancestors to the ferns that exist today. This book will be of interest to anyone fascinated by the history and diversity of plant life on our planet. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. Codice articolo 9781528223348_0
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