Manual of the Trees of North America (Exclusive of Mexico) 2nd ed

Manual of the Trees of North America (Exclusive of Mexico) 2nd ed.

In this volume I have tried to bring into convenient form for the use of students the information concerning the trees of North America which has been gathered at the Arnold Arboretum during the last thirty years and has been largely elaborated in my Silva of North America. The indigenous trees of no other region of equal extent are, perhaps, so well known as those that grow naturally in North America. There is, however, still much to be learned about them. In the southern states, one of the most remarkable extratropical regions in the world in the richness of its arborescent flora, several species are still imperfectly known, while it is not improbable that a few may have escaped entirely the notice of botanists; and in the northern states are several forms of Cratgus which, in the absence of sufficient information, it has been found impracticable to include in this volume. Little is known as yet of the silvicultural value and requirements of North American trees, or of the diseases that affect them; and one of the objects of this volume is to stimulate further investigation of their characters and needs. The arrangement of families and genera adopted in this volume is that of Engler & Prantls Die Natrlichen Pflanzenfamilien, in which the procession is from a simpler to a more complex structure. The nomenclature is that of The Silva of North America. Descriptions of a few species of Cratgus are now first published, and investigations made since the publication of the last volume of The Silva of North America, in December, 1902, have necessitated the introduction of a few additional trees described by other authors, and occasional changes of names. ......Buy Now (To Read More)

Product details

Ebook Number: 46450
Author: Sargent, Charles Sprague
Release Date: Jul 30, 2014
Format: eBook
Language: English

Contributors

Illustrator: Faxon, Charles Edward, 1846-1918 , Gill, Mary W