Gymnosperms of the United States and Canada PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Gymnosperms of the United States and Canada PDF full book. Access full book title Gymnosperms of the United States and Canada by Elray S. Nixon. Download full books in PDF and EPUB format.
Author: Elray S. Nixon
Publisher:
ISBN: 9780934115032
Category : Gymnosperms
Languages : en
Pages : 200
Get Book Here
Book Description
This book contains a key for the identification of the gymnosperms of the United States and Canada relying as much as possible on stem, leaf and cone characters. Because gymnosperms are usually evergreen, these characters are generally available throughout the year. Illustrations of species and plant characters are included to help with the identification process.
Author: Elray S. Nixon
Publisher:
ISBN: 9780934115032
Category : Gymnosperms
Languages : en
Pages : 200
Get Book Here
Book Description
This book contains a key for the identification of the gymnosperms of the United States and Canada relying as much as possible on stem, leaf and cone characters. Because gymnosperms are usually evergreen, these characters are generally available throughout the year. Illustrations of species and plant characters are included to help with the identification process.
Author: John Malcolm Anderson
Publisher:
ISBN:
Category : Gymnosperms
Languages : en
Pages : 296
Get Book Here
Book Description
This book offers a global synthesis of gymnosperm families, fossil and extant, providing a new and distinctive perspective on the macroevolutionary biodiversity trends within this group through their 375 million-year history. The stratigraphic ranges of the 84 gymnosperm families are plotted according to their first and last appearances in the fossil record. Also included is a systematic coverage of floral kingdoms, biodiversity patterns, insect associations and other fields, traced period by period from the Devonian to Quaternary.
Author: Gil Nelson
Publisher: Princeton University Press
ISBN: 1400852994
Category : Nature
Languages : en
Pages : 724
Get Book Here
Book Description
The most comprehensive and user-friendly field guide to the trees of eastern North America Covering 825 species, more than any comparable field guide, Trees of Eastern North America is the most comprehensive, best illustrated, and easiest-to-use book of its kind. Presenting all the native and naturalized trees of the eastern United States and Canada as far west as the Great Plains—including those species found only in tropical and subtropical Florida and northernmost Canada—the book features superior descriptions; thousands of meticulous color paintings by David More that illustrate important visual details; range maps that provide a thumbnail view of distribution for each native species; "Quick ID" summaries; a user-friendly layout; scientific and common names; the latest taxonomy; information on the most recently naturalized species; keys to leaves and twigs; and an introduction to tree identification, forest ecology, and plant classification and structure. The easy-to-read descriptions present details of size, shape, growth habit, bark, leaves, flowers, fruit, flowering and fruiting times, habitat, and range. Using a broad definition of a tree, the book covers many small, overlooked species normally thought of as shrubs. With its unmatched combination of breadth and depth, this is an essential guide for every tree lover. The most comprehensive, best illustrated, and easiest-to-use field guide to the trees of eastern North America Covers 825 species, more than any comparable guide, including all the native and naturalized trees of the United States and Canada as far west as the Great Plains Features specially commissioned artwork, detailed descriptions, range maps for native species, up-to-date taxonomy and names, and much, much more An essential guide for every tree lover
Author: Charles Elmer Allen
Publisher:
ISBN:
Category : Botany
Languages : en
Pages : 502
Get Book Here
Book Description
Excerpt from Textbook of Botany: There are such wide differences of opinion regarding the proper content of an elementary course in botany that no teacher would venture to put forth a particular selection of facts and principles as the only one wisely to be made from the great body of knowledge concerning plants. The present writers are quite uninclined to adopt such an attitude toward their own choice; still less would they insist upon the precise order in which the materials they have selected should be presented. We are convinced, however, that an introductory course can best be centered about a fairly intensive study of a small number of plants, and that an attempt at a more desultory treatment of the subject must prove unsatisfactory. The plants used as types should be easily available; and so far as possible they should be selected from among those that already have definite meanings to the pupil, either because of their familiarity or because of their utility. In addition, the predominance and the practical significance of the seed plants may be recognized by devoting some time to a study of their divers forms and uses; and in this study, too, illustrations should be drawn chiefly from those plants of which the pupil sees or hears most in his everyday life. At whatever point in the course this latter work is done, it should have been preceded by an intensive study of the life of at least one particular seed plant. The present book offers a sufficient amount of work for a year's course. Probably all teachers will agree that a secondary school course in botany should not occupy less time than this, although, unfortunately, the ideal is often impossible of attainment. The order of presentation here adopted is that which will probably, in general, be most satisfactory in schools that begin the study of botany in the fall.
Author:
Publisher:
ISBN:
Category : Communicable diseases
Languages : en
Pages : 188
Get Book Here
Book Description
Author: William Lewis Eikenberry
Publisher:
ISBN:
Category : Botany
Languages : en
Pages : 168
Get Book Here
Book Description
Author: Geological Survey (U.S.)
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 316
Get Book Here
Book Description
Author: Charles B. Beck
Publisher:
ISBN: 9780231063586
Category : Science
Languages : en
Pages : 504
Get Book Here
Book Description
-- Botanical Journal of the Linnean Society
Author: Williamson Nevin Geddes
Publisher:
ISBN:
Category : Botany
Languages : en
Pages : 724
Get Book Here
Book Description
Author: Henry Woldmar Ruoff
Publisher:
ISBN:
Category : Encyclopedias and dictionaries
Languages : en
Pages : 1024
Get Book Here
Book Description
